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Materials Data on Zn3Fe12(CoO12)2 by Materials Project

Fe12Zn3(CoO12)2 is beta indium sulfide-derived structured and crystallizes in the orthorhombic Imm2 space group. The structure is three-dimensional. there are five 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 CoO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.94–2.13 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent CoO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.95–2.13 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one CoO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six 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 FeO6 octahedra that share corners with two equivalent CoO4 tetrahedra, corners with three ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.95–2.14 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with three equivalent CoO4 tetrahedra, corners with three equivalent ZnO4 tetrahedra, and edges with six FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.02–2.10 Å. Co3+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with twelve FeO6 octahedra. The corner-sharing octahedra tilt angles range from 54–58°. There are a spread of Co–O bond distances ranging from 1.88–1.93 Å. There are two inequivalent Zn2+ sites. In the first 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 56–61°. There are two shorter (2.00 Å) and two longer (2.02 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 octahedra tilt angles range from 55–60°. There are three shorter (2.00 Å) and one longer (2.04 Å) Zn–O bond lengths. There are ten inequivalent O2- sites. In the first 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 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 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 a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids. 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 distorted trigonal non-coplanar geometry to three Fe3+ atoms. In the seventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Co3+ atom. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Co3+ atom. In the ninth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe3+ and one Co3+ atom. In the tenth O2- site, O2- is bonded in a trigonal non-coplanar geometry to three Fe3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Li2VFe(P2O7)2 by Materials Project

Li2VFe(P2O7)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.99–2.07 Å. In the second Li1+ site, Li1+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 2.01–2.09 Å. V3+ is bonded to six O2- atoms to form VO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of V–O bond distances ranging from 1.99–2.09 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.98–2.09 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one VO6 octahedra, corners with two equivalent FeO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 45–50°. There is three shorter (1.53 Å) and one longer (1.62 Å) P–O bond length. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one VO6 octahedra, corners with two equivalent FeO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 34–49°. There are a spread of P–O bond distances ranging from 1.52–1.63 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra, corners with two equivalent VO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 34–50°. There are a spread of P–O bond distances ranging from 1.52–1.62 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra, corners with two equivalent VO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 46–50°. There are a spread of P–O bond distances ranging from 1.53–1.61 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one V3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one V3+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Fe3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one V3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one V3+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to one V3+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the eighth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to one Fe3+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Fe3+, and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Fe3+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one V3+, and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one Fe3+, and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom.

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Materials Data on FeCu(PO4)2 by Materials Project

FeCu(PO4)2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Fe3+ is bonded to six O2- atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra and an edgeedge with one PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.97–2.19 Å. Cu3+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.83–1.91 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 37–51°. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra and an edgeedge with one FeO6 octahedra. The corner-sharing octahedral tilt angles are 44°. There are a spread of P–O bond distances ranging from 1.51–1.59 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Cu3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Fe3+, one Cu3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one Cu3+ and one P5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on FeSb(P2O7)2 by Materials Project

FeSb(P2O7)2 crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.97–2.11 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Sb–O bond distances ranging from 1.96–1.99 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SbO6 octahedra, corners with two equivalent FeO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 29–43°. There are a spread of P–O bond distances ranging from 1.51–1.62 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra, corners with two equivalent SbO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 28–35°. There are a spread of P–O bond distances ranging from 1.49–1.58 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra, corners with two equivalent SbO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 39–41°. There are a spread of P–O bond distances ranging from 1.49–1.58 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one SbO6 octahedra, corners with two equivalent FeO6 octahedra, and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 23–32°. There are a spread of P–O bond distances ranging from 1.50–1.62 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sb5+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Sb5+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sb5+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sb5+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to one Sb5+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the twelfth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Sb5+ and one P5+ atom.

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Materials Data on FeCo(PO4)2 by Materials Project

FeCo(PO4)2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with four equivalent CoO6 octahedra, corners with four PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 49°. There are a spread of Fe–O bond distances ranging from 1.95–2.16 Å. Co3+ is bonded to six O2- atoms to form distorted CoO6 octahedra that share corners with four equivalent FeO6 octahedra, corners with four PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 49°. There are a spread of Co–O bond distances ranging from 1.90–2.27 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one CoO6 octahedra, corners with three equivalent FeO6 octahedra, and an edgeedge with one CoO6 octahedra. The corner-sharing octahedra tilt angles range from 39–56°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra, corners with three equivalent CoO6 octahedra, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedra tilt angles range from 48–54°. There are a spread of P–O bond distances ranging from 1.51–1.59 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Co3+ and one P5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Fe3+, one Co3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Fe3+, one Co3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Co3+ and one P5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on CaFeClO2 by Materials Project

CaFeO2Cl crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to four O2- and one Cl1- atom to form distorted corner-sharing CaClO4 trigonal bipyramids. There are a spread of Ca–O bond distances ranging from 2.24–2.42 Å. The Ca–Cl bond length is 2.82 Å. In the second Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to three equivalent O2- and four Cl1- atoms. There are one shorter (2.25 Å) and two longer (2.61 Å) Ca–O bond lengths. There are a spread of Ca–Cl bond distances ranging from 2.71–3.06 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to two O2- and three equivalent Cl1- atoms to form distorted corner-sharing FeCl3O2 trigonal bipyramids. There is one shorter (1.80 Å) and one longer (1.90 Å) Fe–O bond length. All Fe–Cl bond lengths are 2.38 Å. In the second Fe3+ site, Fe3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Fe–O bond distances ranging from 1.89–2.53 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two Fe3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Ca2+ and three equivalent Fe3+ atoms. In the third O2- site, O2- is bonded to three equivalent Ca2+ and one Fe3+ atom to form distorted corner-sharing OCa3Fe tetrahedra. In the fourth O2- site, O2- is bonded to three equivalent Ca2+ and one Fe3+ atom to form distorted corner-sharing OCa3Fe tetrahedra. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 4-coordinate geometry to one Ca2+ and three equivalent Fe3+ atoms. In the second Cl1- site, Cl1- is bonded in a 2-coordinate geometry to four Ca2+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Li8FeCo9O20 by Materials Project

Li8FeCo9O20 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are four inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five CoO6 octahedra, an edgeedge with one FeO6 octahedra, edges with four LiO6 octahedra, and edges with five CoO6 octahedra. The corner-sharing octahedra tilt angles range from 5–12°. There are a spread of Li–O bond distances ranging from 2.06–2.20 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six CoO6 octahedra, an edgeedge with one FeO6 octahedra, edges with five LiO6 octahedra, and edges with five CoO6 octahedra. The corner-sharing octahedra tilt angles range from 6–12°. There are a spread of Li–O bond distances ranging from 2.07–2.20 Å. In the third Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five CoO6 octahedra, edges with five LiO6 octahedra, and edges with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 5–12°. There are a spread of Li–O bond distances ranging from 2.07–2.21 Å. In the fourth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with five CoO6 octahedra, edges with four LiO6 octahedra, and edges with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 6–11°. There are a spread of Li–O bond distances ranging from 2.06–2.18 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six LiO6 octahedra, edges with four LiO6 octahedra, and edges with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 5–11°. There are a spread of Fe–O bond distances ranging from 1.92–1.95 Å. There are five inequivalent Co+3.22+ sites. In the first Co+3.22+ site, Co+3.22+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with five LiO6 octahedra, edges with five LiO6 octahedra, and edges with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 6–11°. There are a spread of Co–O bond distances ranging from 1.90–1.95 Å. In the second Co+3.22+ site, Co+3.22+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four LiO6 octahedra, edges with two equivalent FeO6 octahedra, edges with four CoO6 octahedra, and edges with five LiO6 octahedra. The corner-sharing octahedra tilt angles range from 7–12°. There are a spread of Co–O bond distances ranging from 1.89–1.95 Å. In the third Co+3.22+ site, Co+3.22+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four LiO6 octahedra, edges with five LiO6 octahedra, and edges with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 5–12°. There are a spread of Co–O bond distances ranging from 1.89–1.94 Å. In the fourth Co+3.22+ site, Co+3.22+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with five LiO6 octahedra, an edgeedge with one FeO6 octahedra, edges with five LiO6 octahedra, and edges with five CoO6 octahedra. The corner-sharing octahedra tilt angles range from 6–12°. There are a spread of Co–O bond distances ranging from 1.90–1.96 Å. In the fifth Co+3.22+ site, Co+3.22+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six LiO6 octahedra, edges with four LiO6 octahedra, and edges with six CoO6 octahedra. The corner-sharing octahedra tilt angles range from 6–10°. There is two shorter (1.92 Å) and four longer (1.93 Å) Co–O bond length. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to two Li1+ and three Co+3.22+ atoms to form OLi2Co3 square pyramids that share corners with two OLi3Co3 octahedra, corners with seven OLi2FeCo2 square pyramids, edges with six OLi3Co3 octahedra, and edges with two OLi2Co3 square pyramids. The corner-sharing octahedra tilt angles range from 2–4°. In the second O2- site, O2- is bonded to two Li1+, one Fe3+, and two equivalent Co+3.22+ atoms to form OLi2FeCo2 square pyramids that share corners with two OLi3Co3 octahedra, corners with seven OLi2Co3 square pyramids, edges with five OLi3Co3 octahedra, and edges with three OLi2FeCo2 square pyramids. The corner-sharing octahedra tilt angles range from 2–5°. In the third O2- site, O2- is bonded to three Li1+ and three Co+3.22+ atoms to form OLi3Co3 octahedra that share corners with two OLi3FeCo2 octahedra, corners with four OLi2Co3 square pyramids, edges with five OLi3Co3 octahedra, and edges with seven OLi2Co3 square pyramids. The corner-sharing octahedra tilt angles range from 1–4°. In the fourth O2- site, O2- is bonded to two Li1+, one Fe3+, and two Co+3.22+ atoms to form OLi2FeCo2 square pyramids that share corners with three OLi3Co3 octahedra, corners with six OLi2Co3 square pyramids, edges with four OLi3FeCo2 octahedra, and edges with four OLi2FeCo2 square pyramids. The corner-sharing octahedra tilt angles range from 1–5°. In the fifth O2- site, O2- is bonded to three Li1+, one Fe3+, and two Co+3.22+ atoms to form OLi3FeCo2 octahedra that share corners with three OLi3Co3 octahedra, corners with three OLi2FeCo2 square pyramids, edges with four OLi3Co3 octahedra, and edges with eight OLi2Co3 square pyramids. The corner-sharing octahedra tilt angles range from 0–4°. In the sixth O2- site, O2- is bonded to three Li1+ and three Co+3.22+ atoms to form OLi3Co3 octahedra that share corners with two OLi3FeCo2 octahedra, corners with four OLi2Co3 square pyramids, edges with five OLi3Co3 octahedra, and edges with seven OLi2FeCo2 square pyramids. The corner-sharing octahedra tilt angles range from 1–5°. In the seventh O2- site, O2- is bonded to two Li1+ and three Co+3.22+ atoms to form OLi2Co3 square pyramids that share corners with three OLi3FeCo2 octahedra, corners with six OLi2Co3 square pyramids, edges with four OLi3Co3 octahedra, and edges with four OLi2Co3 square pyramids. The corner-sharing octahedra tilt angles range from 1–3°. In the eighth O2- site, O2- is bonded to two Li1+ and three Co+3.22+ atoms to form OLi2Co3 square pyramids that share corners with two OLi3Co3 octahedra, corners with seven OLi2FeCo2 square pyramids, edges with six OLi3FeCo2 octahedra, and edges with two OLi2FeCo2 square pyramids. The corner-sharing octahedra tilt angles range from 2–5°. In the ninth O2- site, O2- is bonded to three Li1+ and three Co+3.22+ atoms to form OLi3Co3 octahedra that share corners with three OLi3Co3 octahedra, corners with three OLi2FeCo2 square pyramids, edges with four OLi3Co3 octahedra, and edges with eight OLi2Co3 square pyramids. The corner-sharing octahedra tilt angles range from 0–5°. In the tenth O2- site, O2- is bonded to two Li1+ and three Co+3.22+ atoms to form OLi2Co3 square pyramids that share corners with two OLi3Co3 octahedra, corners with seven OLi2Co3 square pyramids, edges with five OLi3Co3 octahedra, and edges with three OLi2Co3 square pyramids. The corner-sharing octahedra tilt angles range from 3–5°.

36 MATERIALS SCIENCE↗

Materials Data on Zn(FeS2)2 by Materials Project

ZnFe2S4 is Spinel structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Fe3+ is bonded to six equivalent S2- atoms to form FeS6 octahedra that share corners with six equivalent ZnS4 tetrahedra and edges with six equivalent FeS6 octahedra. All Fe–S bond lengths are 2.29 Å. Zn2+ is bonded to four equivalent S2- atoms to form ZnS4 tetrahedra that share corners with twelve equivalent FeS6 octahedra. The corner-sharing octahedral tilt angles are 60°. All Zn–S bond lengths are 2.33 Å. S2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form a mixture of distorted corner and edge-sharing SZnFe3 tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on FeP(HO2)2 by Materials Project

FeH2PO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four hydrogen molecules and one FeHPO4 framework. In the FeHPO4 framework, Fe3+ is bonded to one H and four O2- atoms to form distorted FeHO4 trigonal bipyramids that share corners with four equivalent PO4 tetrahedra. The Fe–H bond length is 1.62 Å. There are a spread of Fe–O bond distances ranging from 1.89–1.92 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four equivalent FeHO4 trigonal bipyramids. There is one shorter (1.53 Å) and three longer (1.55 Å) P–O bond length. H is bonded in a distorted single-bond geometry to one Fe3+ atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Fe3+ and one P5+ atom.

36 MATERIALS SCIENCE↗

Iron Carbonyl Complexes of [2.2.2]Hericene as a Rigid Tris(1,3-diene) Ligand

Hericene is an unusual hexaolefin consisting of three 1,3-diene units located on a rigid bicyclo [2.2.2]octane framework that restricts the geometrical relationships of metal atoms bonded to these olefinic units. In order to explore possible effects of this rigidity limiting metal–metal interaction in polynuclear derivatives possibly stabilizing coordinatively unsaturated species, the structures and energetics of the hericene iron carbonyl complexes (hericene)Fem(CO)n (m = 1, n = 3; m = 2, n = 6, 5; m = 3, n = 9, 8) have been investigated by density functional theory. The lowest-energy (hericene)Fem(CO)3m (m = 1, 2, 3) structures have the cavities of the hericene ligand filled with a single Fe(CO)3 moiety bonded to a 1,3-diolefin unit. Such species have been synthesized by the reaction of Fe2(CO)9 with hericene. For the (hericene)Fe2(CO)5 system, the lowest energy structures are singlet structures with an Fe(CO)3 unit bonded to a 1,3-diene unit in one hericene cavity and an Fe(CO)2 unit in another hericene cavity bonded to three C=C double bonds from two 1,3-diene units. Higher energy (hericene)Fe2(CO)5 structures include a structure in which a single hericene cavity contains a Fe2(CO)4(µ-CO) moiety with each iron atom bonded to a 1,3-diene unit. In addition, both singlet and triplet (hericene)Fe2(CO)5 structures are found in which an Fe(CO)3 moiety and an Fe(CO)2 moiety located in separate hericene cavities are each bonded to a 1,3-diene unit. The lowest-energy (hericene)Fe3(CO)8 structures have two hericene cavities containing Fe(CO)3 moieties fully bonded to 1,3-diene units and a third hericene cavity containing an Fe(CO)2 moiety fully bonded to a 1,3-diene unit.

Luo, Jinfeng↗

Materials Data on NaCa3MgFe(Si2O7)2 by Materials Project

NaCa3MgFe(Si2O7)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.44–2.98 Å. There are three inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.91 Å. In the second Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.40–2.72 Å. In the third Ca2+ site, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.36–2.78 Å. Mg2+ is bonded to four O2- atoms to form MgO4 tetrahedra that share corners with four SiO4 tetrahedra. There are a spread of Mg–O bond distances ranging from 1.94–1.96 Å. Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with four SiO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.88–1.90 Å. There are four inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one MgO4 tetrahedra, a cornercorner with one FeO4 tetrahedra, and a cornercorner with one SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.69 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one MgO4 tetrahedra, a cornercorner with one FeO4 tetrahedra, and a cornercorner with one SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the third Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one MgO4 tetrahedra, a cornercorner with one FeO4 tetrahedra, and a cornercorner with one SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the fourth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one MgO4 tetrahedra, a cornercorner with one FeO4 tetrahedra, and a cornercorner with one SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two Ca2+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, two Ca2+, and one Si4+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, two Ca2+, and one Si4+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, one Ca2+, one Mg2+, and one Si4+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+, one Ca2+, one Fe3+, and one Si4+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Mg2+, and one Si4+ atom. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Fe3+, and one Si4+ atom. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+, one Ca2+, one Mg2+, and one Si4+ atom. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to two Ca2+, one Fe3+, and one Si4+ atom. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+, one Mg2+, and one Si4+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+, one Ca2+, one Fe3+, and one Si4+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, one Ca2+, and two Si4+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted tetrahedral geometry to two Ca2+ and two Si4+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Zn(FeO2)2 by Materials Project

ZnFe2O4 is Spinel structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Fe3+ is bonded to six equivalent O2- atoms to form FeO6 octahedra that share corners with six equivalent ZnO4 tetrahedra and edges with six equivalent FeO6 octahedra. All Fe–O bond lengths are 2.05 Å. Zn2+ is bonded to four equivalent O2- atoms to form ZnO4 tetrahedra that share corners with twelve equivalent FeO6 octahedra. The corner-sharing octahedral tilt angles are 58°. All Zn–O bond lengths are 2.00 Å. O2- is bonded to three equivalent Fe3+ and one Zn2+ atom to form a mixture of distorted edge and corner-sharing OZnFe3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Fe2Te4BrClO10 by Materials Project

Fe2Te4O10BrCl crystallizes in the monoclinic P2_1/c 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 distorted edge-sharing FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.95–2.34 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 1.94–2.14 Å. There are four inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.88–2.00 Å. In the second Te4+ site, Te4+ is bonded in a 6-coordinate geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.93–2.59 Å. In the third Te4+ site, Te4+ is bonded in a 5-coordinate geometry to four O2- and one Br1- atom. There are a spread of Te–O bond distances ranging from 1.89–2.57 Å. The Te–Br bond length is 3.17 Å. In the fourth Te4+ site, Te4+ is bonded in a 2-coordinate geometry to two O2-, two equivalent Br1-, and one Cl1- atom. There is one shorter (1.88 Å) and one longer (1.92 Å) Te–O bond length. There are one shorter (3.25 Å) and one longer (3.31 Å) Te–Br bond lengths. The Te–Cl bond length is 2.39 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+ and one Te4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Fe3+ and one Te4+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe3+ and one Te4+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Fe3+ and one Te4+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to three Te4+ atoms. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Te4+ atoms. In the seventh O2- site, O2- is bonded in a bent 120 degrees geometry to one Fe3+ and one Te4+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Fe3+ and one Te4+ atom. In the ninth O2- site, O2- is bonded to three Fe3+ and one Te4+ atom to form distorted edge-sharing OFe3Te tetrahedra. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to one Fe3+ and one Te4+ atom. Br1- is bonded in a 3-coordinate geometry to three Te4+ atoms. Cl1- is bonded in a single-bond geometry to one Te4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Ti3Fe(BiO3)5 by Materials Project

Bi5Ti3FeO15 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are three inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share a cornercorner with one FeO6 octahedra and corners with four equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 14–17°. There are a spread of Ti–O bond distances ranging from 1.83–2.16 Å. In the second Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.78–2.24 Å. In the third Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.79–2.25 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one TiO6 octahedra and corners with four equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 15–17°. There are a spread of Fe–O bond distances ranging from 1.93–2.12 Å. There are five inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Bi–O bond distances ranging from 2.22–2.98 Å. In the second Bi3+ site, Bi3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Bi–O bond distances ranging from 2.20–2.97 Å. In the third Bi3+ site, Bi3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Bi–O bond distances ranging from 2.19–2.96 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.21–3.01 Å. In the fifth Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.21–3.02 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Ti4+, one Fe3+, and three equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Fe3+ and three Bi3+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ti4+ and two Bi3+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ti4+ and two equivalent Bi3+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Ti4+ and two equivalent Bi3+ atoms. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Ti4+, one Fe3+, and three equivalent Bi3+ atoms. In the seventh O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one Ti4+ and three equivalent Bi3+ atoms. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to one Ti4+ and three equivalent Bi3+ atoms. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to two Ti4+ and three equivalent Bi3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on FeH12C2(NCl2)2 by Materials Project

(CH3NH3)2FeCl4 crystallizes in the orthorhombic Pccn space group. The structure is two-dimensional and consists of eight methylammonium molecules and two FeCl4 sheets oriented in the (0, 0, 1) direction. In each FeCl4 sheet, Fe3+ is bonded to six Cl1- atoms to form corner-sharing FeCl6 octahedra. The corner-sharing octahedra tilt angles range from 1–18°. There are a spread of Fe–Cl bond distances ranging from 2.39–2.61 Å. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted bent 150 degrees geometry to two equivalent Fe3+ atoms. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Fe3+ atom. In the third Cl1- site, Cl1- is bonded in a linear geometry to two equivalent Fe3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on FeH12C2(NCl2)2 by Materials Project

(CH3NH3)2FeCl4 crystallizes in the orthorhombic Pccn space group. The structure is two-dimensional and consists of eight methylammonium molecules and two FeCl4 sheets oriented in the (0, 0, 1) direction. In each FeCl4 sheet, Fe3+ is bonded to six Cl1- atoms to form corner-sharing FeCl6 octahedra. The corner-sharing octahedra tilt angles range from 0–18°. There are a spread of Fe–Cl bond distances ranging from 2.39–2.61 Å. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted bent 150 degrees geometry to two equivalent Fe3+ atoms. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Fe3+ atom. In the third Cl1- site, Cl1- is bonded in a linear geometry to two equivalent Fe3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on FeAg(MoO4)2 by Materials Project

FeAgMo2O8 crystallizes in the monoclinic P2/c space group. The structure is three-dimensional. Mo6+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mo–O bond distances ranging from 1.75–2.28 Å. Fe3+ is bonded to six O2- atoms to form edge-sharing FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.96–2.17 Å. Ag1+ is bonded to six O2- atoms to form distorted edge-sharing AgO6 octahedra. There are a spread of Ag–O bond distances ranging from 2.39–2.48 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to one Mo6+ and two equivalent Ag1+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Mo6+ and one Ag1+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Mo6+ and one Fe3+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mo6+ and two equivalent Fe3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sr(FeS2)2 by Materials Project

Sr(FeS2)2 crystallizes in the tetragonal I422 space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to eight equivalent S2- atoms. All Sr–S bond lengths are 3.13 Å. Fe3+ is bonded to four equivalent S2- atoms to form edge-sharing FeS4 tetrahedra. All Fe–S bond lengths are 2.15 Å. S2- is bonded in a 4-coordinate geometry to two equivalent Sr2+ and two equivalent Fe3+ atoms.

36 MATERIALS SCIENCE↗