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Materials Data on LiFe(SiO3)2 by Materials Project

LiFeSi2O6 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.07–2.42 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six SiO4 tetrahedra and edges with two equivalent FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.94–2.18 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent FeO6 octahedra and corners with two equivalent SiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 32–59°. There is one shorter (1.61 Å) and three longer (1.65 Å) Si–O bond length. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent FeO6 octahedra and corners with two equivalent SiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 40–60°. There are a spread of Si–O bond distances ranging from 1.62–1.66 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one Fe3+, and one Si4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Li1+, one Fe3+, and one Si4+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Si4+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Li1+ and two equivalent Si4+ atoms. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two equivalent Fe3+, and one Si4+ atom. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two equivalent Fe3+, and one Si4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on BaNb2Fe2O9 by Materials Project

BaNb2Fe2O9 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. Ba2+ is bonded to twelve O2- atoms to form BaO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, faces with four equivalent BaO12 cuboctahedra, and faces with eight equivalent NbO6 octahedra. There are a spread of Ba–O bond distances ranging from 2.77–2.89 Å. Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with five equivalent NbO6 octahedra and faces with four equivalent BaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 4–14°. There are a spread of Nb–O bond distances ranging from 1.92–2.21 Å. Fe3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Fe–O bond distances ranging from 1.81–2.11 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ba2+ and two equivalent Nb5+ atoms. In the second O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Nb5+ atoms to form a mixture of distorted edge and corner-sharing OBa4Nb2 octahedra. The corner-sharing octahedra tilt angles range from 1–2°. In the third O2- site, O2- is bonded in a linear geometry to one Nb5+ and one Fe3+ atom. In the fourth O2- site, O2- is bonded to four equivalent Fe3+ atoms to form a mixture of distorted edge and corner-sharing OFe4 trigonal pyramids. In the fifth O2- site, O2- is bonded in a distorted linear geometry to two equivalent Ba2+ and two equivalent Nb5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Fe(MoS2)2 by Materials Project

FeMo2S4 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are four inequivalent Mo+2.50+ sites. In the first Mo+2.50+ site, Mo+2.50+ is bonded to six S2- atoms to form MoS6 octahedra that share corners with six FeS6 octahedra, edges with six MoS6 octahedra, and a faceface with one FeS6 octahedra. The corner-sharing octahedra tilt angles range from 48–56°. There are a spread of Mo–S bond distances ranging from 2.37–2.58 Å. In the second Mo+2.50+ site, Mo+2.50+ is bonded to six S2- atoms to form MoS6 octahedra that share corners with six FeS6 octahedra, edges with six MoS6 octahedra, and a faceface with one FeS6 octahedra. The corner-sharing octahedra tilt angles range from 49–56°. There are a spread of Mo–S bond distances ranging from 2.37–2.59 Å. In the third Mo+2.50+ site, Mo+2.50+ is bonded to six S2- atoms to form distorted MoS6 octahedra that share corners with six FeS6 octahedra, edges with six MoS6 octahedra, and a faceface with one FeS6 octahedra. The corner-sharing octahedra tilt angles range from 49–57°. There are a spread of Mo–S bond distances ranging from 2.37–2.61 Å. In the fourth Mo+2.50+ site, Mo+2.50+ is bonded to six S2- atoms to form distorted MoS6 octahedra that share corners with six FeS6 octahedra, edges with six MoS6 octahedra, and a faceface with one FeS6 octahedra. The corner-sharing octahedra tilt angles range from 50–57°. There are a spread of Mo–S bond distances ranging from 2.37–2.63 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six S2- atoms to form FeS6 octahedra that share corners with twelve MoS6 octahedra, edges with two equivalent FeS6 octahedra, and faces with two MoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–57°. There are a spread of Fe–S bond distances ranging from 2.34–2.48 Å. In the second Fe3+ site, Fe3+ is bonded to six S2- atoms to form FeS6 octahedra that share corners with twelve MoS6 octahedra, edges with two equivalent FeS6 octahedra, and faces with two MoS6 octahedra. The corner-sharing octahedra tilt angles range from 49–57°. There are a spread of Fe–S bond distances ranging from 2.34–2.52 Å. There are eight inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to three Mo+2.50+ and two Fe3+ atoms. In the second S2- site, S2- is bonded in a 5-coordinate geometry to three Mo+2.50+ and two Fe3+ atoms. In the third S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.50+ and one Fe3+ atom. In the fourth S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.50+ and one Fe3+ atom. In the fifth S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.50+ and one Fe3+ atom. In the sixth S2- site, S2- is bonded in a 4-coordinate geometry to three Mo+2.50+ and one Fe3+ atom. In the seventh S2- site, S2- is bonded in a 5-coordinate geometry to three Mo+2.50+ and two Fe3+ atoms. In the eighth S2- site, S2- is bonded in a 5-coordinate geometry to three Mo+2.50+ and two Fe3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on LiFe(SO4)2 by Materials Project

Li1.0Fe(SO4)2 crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are four inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.90–2.52 Å. In the second Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.92–2.41 Å. In the third Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.95–2.60 Å. In the fourth Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 pentagonal pyramids that share corners with four FeO6 octahedra, corners with two SO4 tetrahedra, and edges with two SO4 tetrahedra. The corner-sharing octahedra tilt angles range from 48–59°. There are a spread of Li–O bond distances ranging from 1.99–2.29 Å. There are four inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one LiO6 pentagonal pyramid and corners with six SO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.98–2.12 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one LiO6 pentagonal pyramid and corners with six SO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.98–2.11 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six SO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 2.03–2.09 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent LiO6 pentagonal pyramids and corners with six SO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.08 Å. There are eight inequivalent S6+ sites. In the first S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one LiO6 pentagonal pyramid. The corner-sharing octahedra tilt angles range from 37–46°. There are a spread of S–O bond distances ranging from 1.47–1.51 Å. In the second S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra and an edgeedge with one LiO6 pentagonal pyramid. The corner-sharing octahedra tilt angles range from 47–48°. There are a spread of S–O bond distances ranging from 1.44–1.52 Å. In the third S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra. The corner-sharing octahedra tilt angles range from 44–46°. There are a spread of S–O bond distances ranging from 1.45–1.50 Å. In the fourth S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra. The corner-sharing octahedra tilt angles range from 42–49°. There are a spread of S–O bond distances ranging from 1.43–1.53 Å. In the fifth S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra. The corner-sharing octahedra tilt angles range from 39–48°. There are a spread of S–O bond distances ranging from 1.44–1.53 Å. In the sixth S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one LiO6 pentagonal pyramid. The corner-sharing octahedra tilt angles range from 46–50°. There are a spread of S–O bond distances ranging from 1.45–1.51 Å. In the seventh S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra. The corner-sharing octahedra tilt angles range from 47–48°. There are a spread of S–O bond distances ranging from 1.45–1.52 Å. In the eighth S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three FeO6 octahedra and an edgeedge with one LiO6 pentagonal pyramid. The corner-sharing octahedra tilt angles range from 38–47°. There are a spread of S–O bond distances ranging from 1.45–1.52 Å. There are thirty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one S6+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Fe3+, and one S6+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+ and one S6+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one S6+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Li1+ and one S6+ atom. In the ninth O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one S6+ atom. In the tenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one S6+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+ and one S6+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one S6+ atom. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Fe3+, and one S6+ atom. In the fourteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the fifteenth O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one S6+ atom. In the sixteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one S6+ atom. In the seventeenth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the eighteenth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the nineteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the twentieth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one S6+ atom. In the twenty-first O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the twenty-second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Fe3+, and one S6+ atom. In the twenty-third O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the twenty-fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Li1+ and one S6+ atom. In the twenty-fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one S6+ atom. In the twenty-sixth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one S6+ atom. In the twenty-seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+ and one S6+ atom. In the twenty-eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the twenty-ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Fe3+, and one S6+ atom. In the thirtieth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom. In the thirty-first O2- site, O2- is bonded in a distorted trigonal planar geometry to two Li1+ and one S6+ atom. In the thirty-second O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one S6+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Zn(FeO2)2 by Materials Project

ZnFe2O4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three ZnO6 pentagonal pyramids, edges with six FeO6 octahedra, and an edgeedge with one ZnO6 pentagonal pyramid. There are a spread of Fe–O bond distances ranging from 1.93–2.04 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three ZnO6 pentagonal pyramids, edges with six FeO6 octahedra, and an edgeedge with one ZnO6 pentagonal pyramid. There are a spread of Fe–O bond distances ranging from 1.92–2.16 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three ZnO6 pentagonal pyramids, edges with six FeO6 octahedra, and an edgeedge with one ZnO6 pentagonal pyramid. There are a spread of Fe–O bond distances ranging from 1.93–2.04 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three ZnO6 pentagonal pyramids, edges with six FeO6 octahedra, and an edgeedge with one ZnO6 pentagonal pyramid. There are a spread of Fe–O bond distances ranging from 1.93–2.18 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share edges with six FeO6 octahedra and edges with two ZnO6 pentagonal pyramids. There are a spread of Fe–O bond distances ranging from 1.93–2.00 Å. In the sixth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share edges with six FeO6 octahedra and edges with two ZnO6 pentagonal pyramids. There are a spread of Fe–O bond distances ranging from 1.92–2.00 Å. In the seventh Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share edges with six FeO6 octahedra and edges with two ZnO6 pentagonal pyramids. There are a spread of Fe–O bond distances ranging from 1.92–2.00 Å. In the eighth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share edges with six FeO6 octahedra and edges with two ZnO6 pentagonal pyramids. There are a spread of Fe–O bond distances ranging from 1.93–2.01 Å. There are four inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to six O2- atoms to form distorted ZnO6 pentagonal pyramids that share corners with six FeO6 octahedra and edges with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 1–20°. There are a spread of Zn–O bond distances ranging from 2.09–2.28 Å. In the second Zn2+ site, Zn2+ is bonded to six O2- atoms to form distorted ZnO6 pentagonal pyramids that share corners with six FeO6 octahedra and edges with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 1–20°. There are a spread of Zn–O bond distances ranging from 2.09–2.27 Å. In the third Zn2+ site, Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.09–2.30 Å. In the fourth Zn2+ site, Zn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Zn–O bond distances ranging from 2.08–2.30 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the second O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted OZnFe3 trigonal pyramids that share corners with four OZn2Fe3 trigonal bipyramids, corners with five OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and an edgeedge with one OZnFe3 trigonal pyramid. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the fourth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted OZnFe3 trigonal pyramids that share corners with four OZn2Fe3 trigonal bipyramids, corners with five OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and an edgeedge with one OZnFe3 trigonal pyramid. In the fifth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form OZnFe3 trigonal pyramids that share corners with four OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, and edges with four OZn2Fe3 trigonal bipyramids. In the sixth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form OZnFe3 trigonal pyramids that share corners with four OZn2Fe3 trigonal bipyramids, corners with six OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and an edgeedge with one OZnFe3 trigonal pyramid. In the seventh O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form OZnFe3 trigonal pyramids that share corners with four OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, and edges with four OZn2Fe3 trigonal bipyramids. In the eighth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form OZnFe3 trigonal pyramids that share corners with four OZn2Fe3 trigonal bipyramids, corners with six OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and an edgeedge with one OZnFe3 trigonal pyramid. In the ninth O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form distorted OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with two OZnFe3 trigonal pyramids. In the tenth O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with four OZnFe3 trigonal pyramids. In the eleventh O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with two OZnFe3 trigonal pyramids. In the twelfth O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with four OZnFe3 trigonal pyramids. In the thirteenth O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form distorted OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with two OZnFe3 trigonal pyramids. In the fourteenth O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with four OZnFe3 trigonal pyramids. In the fifteenth O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with two OZnFe3 trigonal pyramids. In the sixteenth O2- site, O2- is bonded to three Fe3+ and two Zn2+ atoms to form OZn2Fe3 trigonal bipyramids that share corners with five OZn2Fe3 trigonal bipyramids, corners with three OZnFe3 trigonal pyramids, edges with four OZn2Fe3 trigonal bipyramids, and edges with four OZnFe3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Fe2Te2(PbO4)3 by Materials Project

Fe2Te2(PbO4)3 is Skutterudite-derived structured and crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with two TeO6 octahedra, and an edgeedge with one TeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–52°. There are a spread of Fe–O bond distances ranging from 1.98–2.17 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two TeO6 octahedra and edges with two TeO6 octahedra. The corner-sharing octahedra tilt angles range from 44–51°. There are a spread of Fe–O bond distances ranging from 2.03–2.13 Å. There are three inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Pb–O bond distances ranging from 2.48–3.16 Å. In the second Pb2+ site, Pb2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Pb–O bond distances ranging from 2.38–2.83 Å. In the third Pb2+ site, Pb2+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of Pb–O bond distances ranging from 2.28–3.19 Å. There are two inequivalent Te6+ sites. In the first Te6+ site, Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with two FeO6 octahedra, corners with two equivalent TeO6 octahedra, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°. There are a spread of Te–O bond distances ranging from 1.92–2.02 Å. In the second Te6+ site, Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with two FeO6 octahedra and edges with two FeO6 octahedra. The corner-sharing octahedra tilt angles range from 44–52°. There are a spread of Te–O bond distances ranging from 1.94–1.99 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Fe3+, one Pb2+, and one Te6+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Pb2+ and two equivalent Te6+ atoms. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+, two Pb2+, and one Te6+ atom. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to one Fe3+, two equivalent Pb2+, and one Te6+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Fe3+ and two Pb2+ atoms. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+, one Pb2+, and one Te6+ atom. In the seventh O2- site, O2- is bonded to one Fe3+, two equivalent Pb2+, and one Te6+ atom to form distorted corner-sharing OFeTePb2 trigonal pyramids. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+, two Pb2+, and one Te6+ atom. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to one Fe3+, two equivalent Pb2+, and one Te6+ atom. In the tenth O2- site, O2- is bonded in a distorted water-like geometry to one Fe3+, two equivalent Pb2+, and one Te6+ atom. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Fe3+, two Pb2+, and one Te6+ atom. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to one Fe3+, two Pb2+, and one Te6+ atom.

36 MATERIALS SCIENCE↗

Materials Data on KMg30FeO32 by Materials Project

KMg30FeO32 is alpha Po-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. K1+ is bonded to six O2- atoms to form KO6 octahedra that share corners with six MgO6 octahedra and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.34 Å) and four longer (2.35 Å) K–O bond lengths. There are eight inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent KO6 octahedra, corners with two equivalent MgO6 octahedra, corners with two equivalent FeO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Mg–O bond distances ranging from 1.94–2.23 Å. In the second Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.12 Å) and two longer (2.19 Å) Mg–O bond lengths. In the third Mg2+ site, Mg2+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Mg–O bond distances ranging from 2.11–2.17 Å. In the fourth Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent KO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (1.95 Å) and four longer (2.18 Å) Mg–O bond lengths. In the fifth Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six MgO6 octahedra, an edgeedge with one KO6 octahedra, an edgeedge with one FeO6 octahedra, and edges with ten MgO6 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. There are four shorter (2.14 Å) and two longer (2.16 Å) Mg–O bond lengths. In the sixth Mg2+ site, Mg2+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing MgO6 octahedra. The corner-sharing octahedra tilt angles range from 1–3°. There are a spread of Mg–O bond distances ranging from 2.13–2.16 Å. In the seventh Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six MgO6 octahedra, an edgeedge with one FeO6 octahedra, and edges with eleven MgO6 octahedra. The corner-sharing octahedra tilt angles range from 0–6°. There are a spread of Mg–O bond distances ranging from 2.12–2.17 Å. In the eighth Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six MgO6 octahedra, an edgeedge with one KO6 octahedra, and edges with eleven MgO6 octahedra. The corner-sharing octahedra tilt angles range from 1–11°. There are a spread of Mg–O bond distances ranging from 2.14–2.17 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six MgO6 octahedra and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.06 Å) and two longer (2.10 Å) Fe–O bond lengths. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded to five Mg2+ and one Fe3+ atom to form a mixture of corner and edge-sharing OMg5Fe octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the second O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–5°. In the third O2- site, O2- is bonded to one K1+ and five Mg2+ atoms to form a mixture of corner and edge-sharing OKMg5 octahedra. The corner-sharing octahedra tilt angles range from 0–5°. In the fourth O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six equivalent OMg6 octahedra and edges with twelve OMg5Fe octahedra. The corner-sharing octahedra tilt angles range from 1–2°. In the fifth O2- site, O2- is bonded to five Mg2+ and one Fe3+ atom to form a mixture of corner and edge-sharing OMg5Fe octahedra. The corner-sharing octahedra tilt angles range from 0–9°. In the sixth O2- site, O2- is bonded to one K1+ and five Mg2+ atoms to form OKMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. The O–Mg bond length is 1.94 Å. In the seventh O2- site, O2- is bonded to one K1+ and five Mg2+ atoms to form OKMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are a spread of O–Mg bond distances ranging from 1.94–2.17 Å. In the eighth O2- site, O2- is bonded to six Mg2+ atoms to form a mixture of corner and edge-sharing OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–4°. In the ninth O2- site, O2- is bonded to six Mg2+ atoms to form a mixture of corner and edge-sharing OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–4°. There are two shorter (2.13 Å) and two longer (2.16 Å) O–Mg bond lengths. In the tenth O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six OKMg5 octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–6°. In the eleventh O2- site, O2- is bonded to one K1+ and five Mg2+ atoms to form OKMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. Both O–Mg bond lengths are 2.17 Å. In the twelfth O2- site, O2- is bonded to one K1+ and five Mg2+ atoms to form OKMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are two shorter (2.14 Å) and two longer (2.17 Å) O–Mg bond lengths.

36 MATERIALS SCIENCE↗

Materials Data on RbMg30FeO32 by Materials Project

RbMg30FeO32 is Molybdenum Carbide MAX Phase-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Rb1+ is bonded to six O2- atoms to form RbO6 octahedra that share corners with six MgO6 octahedra and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.40 Å) and four longer (2.41 Å) Rb–O bond lengths. There are eight inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent RbO6 octahedra, corners with two equivalent MgO6 octahedra, corners with two equivalent FeO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Mg–O bond distances ranging from 1.90–2.25 Å. In the second Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.12 Å) and two longer (2.20 Å) Mg–O bond lengths. In the third Mg2+ site, Mg2+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Mg–O bond distances ranging from 2.10–2.19 Å. In the fourth Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent RbO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (1.91 Å) and four longer (2.21 Å) Mg–O bond lengths. In the fifth Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six MgO6 octahedra, an edgeedge with one RbO6 octahedra, an edgeedge with one FeO6 octahedra, and edges with ten MgO6 octahedra. The corner-sharing octahedra tilt angles range from 1–13°. There are a spread of Mg–O bond distances ranging from 2.14–2.17 Å. In the sixth Mg2+ site, Mg2+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing MgO6 octahedra. The corner-sharing octahedra tilt angles range from 1–3°. There are a spread of Mg–O bond distances ranging from 2.15–2.17 Å. In the seventh Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six MgO6 octahedra, an edgeedge with one FeO6 octahedra, and edges with eleven MgO6 octahedra. The corner-sharing octahedra tilt angles range from 1–6°. There are a spread of Mg–O bond distances ranging from 2.14–2.17 Å. In the eighth Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six MgO6 octahedra, an edgeedge with one RbO6 octahedra, and edges with eleven MgO6 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. There are a spread of Mg–O bond distances ranging from 2.13–2.19 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six MgO6 octahedra and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.06 Å) and two longer (2.11 Å) Fe–O bond lengths. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded to five Mg2+ and one Fe3+ atom to form a mixture of corner and edge-sharing OMg5Fe octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the second O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–6°. In the third O2- site, O2- is bonded to one Rb1+ and five Mg2+ atoms to form a mixture of corner and edge-sharing ORbMg5 octahedra. The corner-sharing octahedra tilt angles range from 0–6°. In the fourth O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six equivalent OMg6 octahedra and edges with twelve OMg5Fe octahedra. The corner-sharing octahedra tilt angles range from 1–2°. In the fifth O2- site, O2- is bonded to five Mg2+ and one Fe3+ atom to form a mixture of corner and edge-sharing OMg5Fe octahedra. The corner-sharing octahedra tilt angles range from 0–9°. In the sixth O2- site, O2- is bonded to one Rb1+ and five Mg2+ atoms to form ORbMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. The O–Mg bond length is 1.90 Å. In the seventh O2- site, O2- is bonded to one Rb1+ and five Mg2+ atoms to form ORbMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are a spread of O–Mg bond distances ranging from 1.90–2.19 Å. In the eighth O2- site, O2- is bonded to six Mg2+ atoms to form a mixture of corner and edge-sharing OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–4°. In the ninth O2- site, O2- is bonded to six Mg2+ atoms to form a mixture of corner and edge-sharing OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–4°. There are two shorter (2.14 Å) and two longer (2.16 Å) O–Mg bond lengths. In the tenth O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six ORbMg5 octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–7°. In the eleventh O2- site, O2- is bonded to one Rb1+ and five Mg2+ atoms to form ORbMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. Both O–Mg bond lengths are 2.19 Å. In the twelfth O2- site, O2- is bonded to one Rb1+ and five Mg2+ atoms to form ORbMg5 octahedra that share corners with six OMg5Fe octahedra and edges with twelve OMg6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are two shorter (2.17 Å) and two longer (2.19 Å) O–Mg bond lengths.

36 MATERIALS SCIENCE↗

Materials Data on Fe(Mo3Se4)2 by Materials Project

Fe(Mo3Se4)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are six inequivalent Mo+2.17+ sites. In the first Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form a mixture of corner and edge-sharing MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.56–2.75 Å. In the second Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form a mixture of corner and edge-sharing MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.56–2.66 Å. In the third Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form a mixture of corner and edge-sharing MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.56–2.73 Å. In the fourth Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form a mixture of corner and edge-sharing MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.59–2.71 Å. In the fifth Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form a mixture of corner and edge-sharing MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.58–2.74 Å. In the sixth Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form a mixture of corner and edge-sharing MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.55–2.74 Å. Fe3+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Fe–Se bond distances ranging from 2.41–2.57 Å. There are eight inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 4-coordinate geometry to three Mo+2.17+ atoms. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one Fe3+ atom. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to four Mo+2.17+ atoms. In the fourth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four Mo+2.17+ atoms. In the fifth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four Mo+2.17+ atoms. In the sixth Se2- site, Se2- is bonded in a 1-coordinate geometry to four Mo+2.17+ and one Fe3+ atom. In the seventh Se2- site, Se2- is bonded in a 1-coordinate geometry to three Mo+2.17+ and one Fe3+ atom. In the eighth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one Fe3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Zn(FeO2)2 by Materials Project

ZnFe2O4 is Spinel-like structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are six inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO4 tetrahedra, corners with five ZnO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.11 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six ZnO4 tetrahedra and edges with six FeO6 octahedra. There are three shorter (2.05 Å) and three longer (2.06 Å) Fe–O bond lengths. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six ZnO4 tetrahedra and edges with six FeO6 octahedra. There are three shorter (2.03 Å) and three longer (2.06 Å) Fe–O bond lengths. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO4 tetrahedra, corners with four ZnO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five FeO6 octahedra. There are four shorter (2.05 Å) and two longer (2.07 Å) Fe–O bond lengths. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six ZnO4 tetrahedra and edges with six FeO6 octahedra. There are three shorter (2.04 Å) and three longer (2.06 Å) Fe–O bond lengths. In the sixth Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with three equivalent ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–59°. There is three shorter (1.94 Å) and one longer (1.95 Å) Fe–O bond length. There are six inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three equivalent ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There are three shorter (1.98 Å) and one longer (2.05 Å) Zn–O bond lengths. In the second Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedral tilt angles are 58°. There are one shorter (2.00 Å) and three longer (2.01 Å) Zn–O bond lengths. In the third Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three equivalent FeO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are three shorter (2.10 Å) and three longer (2.16 Å) Zn–O bond lengths. In the fourth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 58–59°. There are one shorter (1.99 Å) and three longer (2.01 Å) Zn–O bond lengths. In the fifth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There are three shorter (2.01 Å) and one longer (2.02 Å) Zn–O bond lengths. In the sixth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There are three shorter (2.00 Å) and one longer (2.03 Å) Zn–O bond lengths. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe3+ and two Zn2+ atoms. In the second O2- site, O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form distorted corner-sharing OZnFe3 trigonal pyramids. In the third O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the fourth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to four Fe3+ atoms. In the sixth O2- site, O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the seventh O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the eighth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the ninth O2- site, O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the tenth O2- site, O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the eleventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the twelfth O2- site, O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form distorted corner-sharing OZnFe3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Zn(FeO2)2 by Materials Project

ZnFe2O4 is Spinel-like structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are six inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three FeO4 tetrahedra, corners with three ZnO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four equivalent FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.10 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO4 tetrahedra, corners with five ZnO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.01–2.11 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six ZnO4 tetrahedra and edges with six FeO6 octahedra. There are three shorter (2.02 Å) and three longer (2.07 Å) Fe–O bond lengths. In the fourth Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with three equivalent ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–58°. There is three shorter (1.94 Å) and one longer (1.97 Å) Fe–O bond length. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO4 tetrahedra, corners with four ZnO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.04–2.08 Å. In the sixth Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with three equivalent ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–59°. There is three shorter (1.93 Å) and one longer (1.97 Å) Fe–O bond length. There are six inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three equivalent ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There are three shorter (1.99 Å) and one longer (2.03 Å) Zn–O bond lengths. In the second Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three equivalent ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There are three shorter (1.98 Å) and one longer (2.03 Å) Zn–O bond lengths. In the third Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three equivalent FeO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are three shorter (2.11 Å) and three longer (2.14 Å) Zn–O bond lengths. In the fourth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There is one shorter (1.98 Å) and three longer (2.01 Å) Zn–O bond length. In the fifth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three equivalent FeO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are three shorter (2.10 Å) and three longer (2.15 Å) Zn–O bond lengths. In the sixth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–60°. There are three shorter (2.01 Å) and one longer (2.06 Å) Zn–O bond lengths. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe3+ and two Zn2+ atoms. In the second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three equivalent Fe3+ and one Zn2+ atom. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe3+ and two Zn2+ atoms. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three equivalent Fe3+ and one Zn2+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to four Fe3+ atoms. In the seventh O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. In the eighth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. In the ninth O2- site, O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. In the tenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to four Fe3+ atoms. In the eleventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the twelfth O2- site, O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form distorted corner-sharing OZnFe3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Zn(FeO2)2 by Materials Project

ZnFe2O4 is Spinel-like structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are fifteen inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with two equivalent ZnO6 octahedra and corners with ten FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–59°. There are a spread of Fe–O bond distances ranging from 1.93–1.97 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three FeO4 tetrahedra, corners with three ZnO4 tetrahedra, edges with two equivalent ZnO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.00–2.11 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three equivalent FeO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.10 Å. In the fourth Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–58°. There are a spread of Fe–O bond distances ranging from 1.93–1.99 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three FeO4 tetrahedra, corners with three ZnO4 tetrahedra, edges with two equivalent ZnO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.00–2.12 Å. In the sixth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three equivalent FeO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.03–2.08 Å. In the seventh Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–58°. There are a spread of Fe–O bond distances ranging from 1.93–1.99 Å. In the eighth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three FeO4 tetrahedra, corners with three ZnO4 tetrahedra, edges with two equivalent ZnO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.00–2.11 Å. In the ninth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three equivalent FeO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.03–2.08 Å. In the tenth Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There are a spread of Fe–O bond distances ranging from 1.93–1.98 Å. In the eleventh Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO4 tetrahedra, corners with four ZnO4 tetrahedra, edges with two equivalent ZnO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.11 Å. In the twelfth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three equivalent FeO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, edges with two ZnO6 octahedra, and edges with four FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.03–2.09 Å. In the thirteenth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO4 tetrahedra, corners with five ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.03–2.11 Å. In the fourteenth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO4 tetrahedra, corners with five ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.11 Å. In the fifteenth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six ZnO4 tetrahedra, an edgeedge with one ZnO6 octahedra, and edges with five FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.00–2.11 Å. There are ten inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share a cornercorner with one ZnO6 octahedra and corners with eleven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–60°. There are one shorter (1.99 Å) and three longer (2.01 Å) Zn–O bond lengths. In the second Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three FeO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.10–2.15 Å. In the third Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–59°. There are a spread of Zn–O bond distances ranging from 1.98–2.03 Å. In the fourth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three FeO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.10–2.14 Å. In the fifth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There are a spread of Zn–O bond distances ranging from 1.98–2.03 Å. In the sixth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three FeO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.10–2.14 Å. In the seventh Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with three ZnO6 octahedra and corners with nine FeO6 octahedra. The corner-sharing octahedra tilt angles range from 56–60°. There are a spread of Zn–O bond distances ranging from 1.96–2.03 Å. In the eighth Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with two equivalent FeO4 tetrahedra, corners with four ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.09–2.14 Å. In the ninth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share a cornercorner with one ZnO6 octahedra and corners with eleven FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–62°. There are a spread of Zn–O bond distances ranging from 1.98–2.04 Å. In the tenth Zn2+ site, Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with two equivalent ZnO6 octahedra and corners with ten FeO6 octahedra. The corner-sharing octahedra tilt angles range from 55–61°. There are a spread of Zn–O bond distances ranging from 1.98–2.04 Å. There are thirty inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the second O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. In the third O2- site, O2- is bonded to four Fe3+ atoms to form a mixture of distorted edge and corner-sharing OFe4 trigonal pyramids. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the sixth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Zn2+ atoms. In the seventh O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe3+ and two Zn2+ atoms. In the ninth O2- site, O2- is bonded to four Fe3+ atoms to form a mixture of distorted edge and corner-sharing OFe4 trigonal pyramids. In the tenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the eleventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the twelfth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Zn2+ atoms. In the thirteenth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted edge-sharing OZnFe3 trigonal pyramids. In the fourteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe3+ and two Zn2+ atoms. In the fifteenth O2- site, O2- is bonded to four Fe3+ atoms to form a mixture of distorted edge and corner-sharing OFe4 trigonal pyramids. In the sixteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the seventeenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the eighteenth O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to two equivalent Fe3+ and two Zn2+ atoms. In the nineteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe3+ and two Zn2+ atoms. In the twentieth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Zn2+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to four Fe3+ atoms. In the twenty-second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the twenty-third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the twenty-fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two equivalent Fe3+ and two Zn2+ atoms. In the twenty-fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to four Fe3+ atoms. In the twenty-sixth O2- site, O2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two Zn2+ atoms. In the twenty-seventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Zn2+ atom. In the twenty-eighth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. In the twenty-ninth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. In the thirtieth O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form distorted edge-sharing OZnFe3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Li4FeOF5 by Materials Project

Li4FeOF5 crystallizes in the trigonal P3_1 space group. The structure is three-dimensional. there are four inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to one O2- and five F1- atoms to form LiOF5 octahedra that share corners with two equivalent LiOF5 octahedra, corners with two equivalent FeOF5 octahedra, edges with two equivalent FeOF5 octahedra, and edges with eight LiOF5 octahedra. The corner-sharing octahedra tilt angles range from 2–14°. The Li–O bond length is 2.02 Å. There are a spread of Li–F bond distances ranging from 2.01–2.22 Å. In the second Li1+ site, Li1+ is bonded to one O2- and five F1- atoms to form LiOF5 octahedra that share corners with two equivalent LiOF5 octahedra, corners with two equivalent FeOF5 octahedra, edges with two equivalent FeOF5 octahedra, and edges with eight LiOF5 octahedra. The corner-sharing octahedra tilt angles range from 6–13°. The Li–O bond length is 2.08 Å. There are a spread of Li–F bond distances ranging from 1.94–2.33 Å. In the third Li1+ site, Li1+ is bonded to one O2- and five F1- atoms to form LiOF5 octahedra that share corners with six LiOF5 octahedra, edges with three equivalent FeOF5 octahedra, and edges with six LiOF5 octahedra. The corner-sharing octahedra tilt angles range from 2–14°. The Li–O bond length is 2.04 Å. There are a spread of Li–F bond distances ranging from 2.01–2.23 Å. In the fourth Li1+ site, Li1+ is bonded to one O2- and five F1- atoms to form LiOF5 octahedra that share corners with two equivalent LiOF5 octahedra, corners with two equivalent FeOF5 octahedra, edges with two equivalent FeOF5 octahedra, and edges with eight LiOF5 octahedra. The corner-sharing octahedra tilt angles range from 2–14°. The Li–O bond length is 2.03 Å. There are a spread of Li–F bond distances ranging from 2.00–2.44 Å. Fe3+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with six LiOF5 octahedra and edges with nine LiOF5 octahedra. The corner-sharing octahedra tilt angles range from 2–14°. The Fe–O bond length is 1.80 Å. There are a spread of Fe–F bond distances ranging from 2.01–2.11 Å. O2- is bonded to four Li1+ and one Fe3+ atom to form OLi4Fe square pyramids that share corners with nine FLi4Fe square pyramids and edges with eight FLi4Fe square pyramids. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded to four Li1+ and one Fe3+ atom to form FLi4Fe square pyramids that share a cornercorner with one OLi4Fe square pyramid, corners with eight FLi4Fe square pyramids, edges with two equivalent OLi4Fe square pyramids, and edges with six FLi4Fe square pyramids. In the second F1- site, F1- is bonded to four Li1+ and one Fe3+ atom to form FLi4Fe square pyramids that share a cornercorner with one OLi4Fe square pyramid, corners with eight FLi4Fe square pyramids, edges with two equivalent OLi4Fe square pyramids, and edges with six FLi4Fe square pyramids. In the third F1- site, F1- is bonded to four Li1+ and one Fe3+ atom to form distorted FLi4Fe square pyramids that share corners with three equivalent OLi4Fe square pyramids, corners with six FLi4Fe square pyramids, an edgeedge with one OLi4Fe square pyramid, and edges with seven FLi4Fe square pyramids. In the fourth F1- site, F1- is bonded to four Li1+ and one Fe3+ atom to form FLi4Fe square pyramids that share corners with three equivalent OLi4Fe square pyramids, corners with six FLi4Fe square pyramids, an edgeedge with one OLi4Fe square pyramid, and edges with seven FLi4Fe square pyramids. In the fifth F1- site, F1- is bonded to four Li1+ and one Fe3+ atom to form FLi4Fe square pyramids that share a cornercorner with one OLi4Fe square pyramid, corners with eight FLi4Fe square pyramids, edges with two equivalent OLi4Fe square pyramids, and edges with six FLi4Fe square pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Zn(FeO2)2 by Materials Project

ZnFe2O4 is Spinel structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six FeO6 octahedra. There are two shorter (2.03 Å) and four longer (2.05 Å) Fe–O bond lengths. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six FeO6 octahedra. There are four shorter (1.99 Å) and two longer (2.01 Å) Fe–O bond lengths. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six FeO6 octahedra. There are two shorter (2.02 Å) and four longer (2.05 Å) Fe–O bond lengths. Zn2+ is bonded to four O2- atoms to form ZnO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 57–59°. There is one shorter (1.97 Å) and three longer (2.01 Å) Zn–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the second O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids. In the third O2- site, O2- is bonded to three Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing OZnFe3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Fe4As10PbO22 by Materials Project

PbFe4(As5O11)2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one PbFe4(As5O11)2 sheet oriented in the (1, 0, 1) direction. there are four inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form edge-sharing FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.98–2.14 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form edge-sharing FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.08 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form edge-sharing FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.98–2.16 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form edge-sharing FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.04–2.11 Å. Pb2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Pb–O bond distances ranging from 2.54–3.05 Å. There are ten inequivalent As3+ sites. In the first As3+ site, As3+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of As–O bond distances ranging from 1.80–1.85 Å. In the second As3+ site, As3+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of As–O bond distances ranging from 1.80–1.87 Å. In the third As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of As–O bond distances ranging from 1.80–1.83 Å. In the fourth As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.82 Å) and one longer (1.83 Å) As–O bond length. In the fifth As3+ site, As3+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of As–O bond distances ranging from 1.77–1.87 Å. In the sixth As3+ site, As3+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of As–O bond distances ranging from 1.77–1.87 Å. In the seventh As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is one shorter (1.80 Å) and two longer (1.83 Å) As–O bond length. In the eighth As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of As–O bond distances ranging from 1.80–1.84 Å. In the ninth As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. All As–O bond lengths are 1.82 Å. In the tenth As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of As–O bond distances ranging from 1.79–1.87 Å. There are twenty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two Fe3+ and one As3+ atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to two Fe3+ and one As3+ atom. In the third O2- site, O2- is bonded in a trigonal planar geometry to two Fe3+ and one As3+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Fe3+ and one As3+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to two Fe3+, one Pb2+, and one As3+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Fe3+ and one As3+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Fe3+ and one As3+ atom. In the eighth O2- site, O2- is bonded in a trigonal planar geometry to two Fe3+ and one As3+ atom. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to two Fe3+, one Pb2+, and one As3+ atom. In the tenth O2- site, O2- is bonded in a bent 120 degrees geometry to two As3+ atoms. In the eleventh O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Fe3+, one Pb2+, and one As3+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+, one Pb2+, and one As3+ atom. In the thirteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two As3+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Pb2+ and two As3+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+, one Pb2+, and one As3+ atom. In the sixteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two As3+ atoms. In the seventeenth O2- site, O2- is bonded in a bent 120 degrees geometry to two As3+ atoms. In the eighteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two As3+ atoms. In the nineteenth O2- site, O2- is bonded in a trigonal planar geometry to two Fe3+ and one As3+ atom. In the twentieth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Pb2+ and two As3+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+, one Pb2+, and one As3+ atom. In the twenty-second O2- site, O2- is bonded in a bent 120 degrees geometry to two As3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Fe(Mo3Se4)2 by Materials Project

Fe(Mo3Se4)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Mo+2.17+ sites. In the first Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form MoSe5 square pyramids that share corners with four MoSe5 square pyramids, a cornercorner with one FeSe4 tetrahedra, edges with five MoSe5 square pyramids, and a faceface with one FeSe4 tetrahedra. There are a spread of Mo–Se bond distances ranging from 2.55–2.73 Å. In the second Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form MoSe5 square pyramids that share corners with four MoSe5 square pyramids, corners with two equivalent FeSe4 tetrahedra, and edges with five MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.56–2.70 Å. In the third Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form MoSe5 square pyramids that share corners with four MoSe5 square pyramids, corners with two equivalent FeSe4 tetrahedra, and edges with five MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.57–2.72 Å. In the fourth Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form MoSe5 square pyramids that share corners with four MoSe5 square pyramids, corners with two equivalent FeSe4 tetrahedra, and edges with five MoSe5 square pyramids. There are a spread of Mo–Se bond distances ranging from 2.57–2.71 Å. In the fifth Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form MoSe5 square pyramids that share corners with four MoSe5 square pyramids, a cornercorner with one FeSe4 tetrahedra, edges with five MoSe5 square pyramids, and an edgeedge with one FeSe4 tetrahedra. There are a spread of Mo–Se bond distances ranging from 2.59–2.76 Å. In the sixth Mo+2.17+ site, Mo+2.17+ is bonded to five Se2- atoms to form MoSe5 square pyramids that share corners with four MoSe5 square pyramids, edges with five MoSe5 square pyramids, and an edgeedge with one FeSe4 tetrahedra. There are a spread of Mo–Se bond distances ranging from 2.56–2.75 Å. Fe3+ is bonded to four Se2- atoms to form FeSe4 tetrahedra that share corners with eight MoSe5 square pyramids, edges with two MoSe5 square pyramids, and a faceface with one MoSe5 square pyramid. There are a spread of Fe–Se bond distances ranging from 2.42–2.57 Å. There are eight inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four Mo+2.17+ atoms. In the second Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four Mo+2.17+ atoms. In the third Se2- site, Se2- is bonded in a 1-coordinate geometry to four Mo+2.17+ and one Fe3+ atom. In the fourth Se2- site, Se2- is bonded in a 4-coordinate geometry to four Mo+2.17+ atoms. In the fifth Se2- site, Se2- is bonded in a 1-coordinate geometry to three Mo+2.17+ and one Fe3+ atom. In the sixth Se2- site, Se2- is bonded in a 6-coordinate geometry to three Mo+2.17+ atoms. In the seventh Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one Fe3+ atom. In the eighth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Mo+2.17+ and one Fe3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Fe3Cu(SnS4)2 by Materials Project

Fe3Cu(SnS4)2 is Spinel-derived structured and crystallizes in the orthorhombic Imm2 space group. The structure is three-dimensional. there are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four S2- atoms to form FeS4 tetrahedra that share corners with six equivalent FeS6 octahedra and corners with six equivalent SnS6 octahedra. The corner-sharing octahedra tilt angles range from 46–66°. There are two shorter (2.27 Å) and two longer (2.35 Å) Fe–S bond lengths. In the second Fe3+ site, Fe3+ is bonded to six S2- atoms to form FeS6 octahedra that share corners with three equivalent FeS4 tetrahedra, corners with three equivalent CuS4 tetrahedra, edges with two equivalent FeS6 octahedra, and edges with four equivalent SnS6 octahedra. There are a spread of Fe–S bond distances ranging from 2.28–2.37 Å. Cu1+ is bonded to four S2- atoms to form CuS4 tetrahedra that share corners with six equivalent FeS6 octahedra and corners with six equivalent SnS6 octahedra. The corner-sharing octahedra tilt angles range from 46–66°. There are two shorter (2.31 Å) and two longer (2.35 Å) Cu–S bond lengths. Sn3+ is bonded to six S2- atoms to form SnS6 octahedra that share corners with three equivalent FeS4 tetrahedra, corners with three equivalent CuS4 tetrahedra, edges with two equivalent SnS6 octahedra, and edges with four equivalent FeS6 octahedra. There are a spread of Sn–S bond distances ranging from 2.54–2.60 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a rectangular see-saw-like geometry to two Fe3+ and two equivalent Sn3+ atoms. In the second S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Fe3+ and one Sn3+ atom. In the third S2- site, S2- is bonded in a rectangular see-saw-like geometry to one Fe3+, one Cu1+, and two equivalent Sn3+ atoms. In the fourth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Fe3+, one Cu1+, and one Sn3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Sr3La7Mn7(FeO10)3 by Materials Project

Sr3La7Mn7(FeO10)3 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are three inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.52–3.19 Å. In the second Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.55–3.15 Å. In the third Sr2+ site, Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.52–3.19 Å. There are seven inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.43–2.84 Å. In the second La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.44–2.84 Å. In the third La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.47–2.81 Å. In the fourth La3+ site, La3+ is bonded in a 12-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.44–2.81 Å. In the fifth La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.43–2.83 Å. In the sixth La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.41–2.82 Å. In the seventh La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.43–2.84 Å. There are seven inequivalent Mn+3.43+ sites. In the first Mn+3.43+ site, Mn+3.43+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with four MnO6 octahedra. The corner-sharing octahedra tilt angles range from 14–21°. There are a spread of Mn–O bond distances ranging from 1.93–2.01 Å. In the second Mn+3.43+ site, Mn+3.43+ is bonded to six O2- atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedra tilt angles range from 14–20°. There are a spread of Mn–O bond distances ranging from 1.98–2.03 Å. In the third Mn+3.43+ site, Mn+3.43+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with four MnO6 octahedra. The corner-sharing octahedra tilt angles range from 12–21°. There are a spread of Mn–O bond distances ranging from 1.93–2.01 Å. In the fourth Mn+3.43+ site, Mn+3.43+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with four MnO6 octahedra. The corner-sharing octahedra tilt angles range from 13–21°. There are a spread of Mn–O bond distances ranging from 1.94–2.01 Å. In the fifth Mn+3.43+ site, Mn+3.43+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 16–22°. There are a spread of Mn–O bond distances ranging from 1.94–1.97 Å. In the sixth Mn+3.43+ site, Mn+3.43+ is bonded to six O2- atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedra tilt angles range from 14–20°. There are a spread of Mn–O bond distances ranging from 1.98–2.04 Å. In the seventh Mn+3.43+ site, Mn+3.43+ is bonded to six O2- atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedra tilt angles range from 12–21°. There are a spread of Mn–O bond distances ranging from 1.98–2.07 Å. There are three inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 13–22°. There are a spread of Fe–O bond distances ranging from 1.99–2.02 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with four MnO6 octahedra. The corner-sharing octahedra tilt angles range from 16–22°. There are a spread of Fe–O bond distances ranging from 1.99–2.06 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with four MnO6 octahedra. The corner-sharing octahedra tilt angles range from 14–22°. There are a spread of Fe–O bond distances ranging from 1.97–2.04 Å. There are thirty inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to two Sr2+, one La3+, and two Mn+3.43+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Sr2+, one La3+, and two Mn+3.43+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to two Sr2+, one La3+, and two Mn+3.43+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two La3+, and two Mn+3.43+ atoms. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to two Sr2+, one La3+, and two Mn+3.43+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two equivalent La3+, and two Mn+3.43+ atoms. In the seventh O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Sr2+, one La3+, and two Mn+3.43+ atoms. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, and two Mn+3.43+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two La3+, and two Mn+3.43+ atoms. In the tenth O2- site, O2- is bonded in a 5-coordinate geometry to two Sr2+, one La3+, and two Mn+3.43+ atoms. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two La3+, and two Mn+3.43+ atoms. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+, two equivalent La3+, and two Mn+3.43+ atoms. In the thirteenth O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Sr2+, one La3+, and two Mn+3.43+ atoms. In the fourteenth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Fe3+ atoms. In the fifteenth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, three La3+, and two Mn+3.43+ atoms. In the sixteenth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, one Mn+3.43+, and one Fe3+ atom. In the seventeenth O2- site, O2- is bonded in a 2-coordinate geometry to two Sr2+, two La3+, and two Mn+3.43+ atoms. In the eighteenth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two equivalent La3+, one Mn+3.43+, and one Fe3+ atom. In the nineteenth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+, one Mn+3.43+, and one Fe3+ atom. In the twentieth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, one Mn+3.43+, and one Fe3+ atom. In the twenty-first O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Fe3+ atoms. In the twenty-second O2- site, O2- is bonded in a 5-coordinate geometry to three La3+, one Mn+3.43+, and one Fe3+ atom. In the twenty-third O2- site, O2- is bonded in a 3-coordinate geometry to one Sr2+, three La3+, one Mn+3.43+, and one Fe3+ atom. In the twenty-fourth O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, three La3+, and two Fe3+ atoms. In the twenty-fifth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Fe3+ atoms. In the twenty-sixth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+, two La3+, one Mn+3.43+, and one Fe3+ atom. In the twenty-seventh O2- site, O2- is bonded in a 5-coordinate geometry to one Sr2+, two La3+, one Mn+3.43+, and one Fe3+ atom. In the twenty-eighth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+, one Mn+3.43+, and one Fe3+ atom. In the twenty-ninth O2- site, O2- is bonded in a 3-coordinate geometry to one Sr2+, three La3+, and two Mn+3.43+ atoms. In the thirtieth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+, two La3+, one Mn+3.43+, and one Fe3+ atom.

36 MATERIALS SCIENCE↗