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DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is Hydrophilite-derived structured and crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are four inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 47–61°. The Fe–O bond length is 2.00 Å. There are a spread of Fe–F bond distances ranging from 2.09–2.20 Å. In the second Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 42–61°. The Fe–O bond length is 2.07 Å. There are a spread of Fe–F bond distances ranging from 2.07–2.21 Å. In the third Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 40–55°. The Fe–O bond length is 1.84 Å. There are a spread of Fe–F bond distances ranging from 2.00–2.13 Å. In the fourth Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 40–56°. There are a spread of Fe–F bond distances ranging from 2.04–2.13 Å. O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the sixth F1- site, F1- is bonded in a 3-coordinate geometry to three Fe+2.25+ atoms. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is Hydrophilite-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are three inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight equivalent FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 46–51°. The Fe–O bond length is 1.83 Å. There are a spread of Fe–F bond distances ranging from 2.06–2.11 Å. In the second Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of corner and edge-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 49–56°. There are a spread of Fe–F bond distances ranging from 1.98–2.17 Å. In the third Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of corner and edge-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 46–56°. The Fe–O bond length is 2.07 Å. There are a spread of Fe–F bond distances ranging from 2.10–2.22 Å. O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is beta Vanadium nitride-derived structured and crystallizes in the orthorhombic Imm2 space group. The structure is three-dimensional. there are three inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 51–53°. There are one shorter (2.10 Å) and five longer (2.12 Å) Fe–F bond lengths. In the second Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight equivalent FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 43–49°. The Fe–O bond length is 1.94 Å. There are one shorter (2.09 Å) and four longer (2.16 Å) Fe–F bond lengths. In the third Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeF6 octahedra and edges with two equivalent FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 43–53°. The Fe–O bond length is 1.93 Å. There are a spread of Fe–F bond distances ranging from 2.03–2.17 Å. O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a distorted T-shaped geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 45–56°. The Fe–O bond length is 2.01 Å. There are a spread of Fe–F bond distances ranging from 2.14–2.17 Å. In the second Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 43–57°. There are a spread of Fe–F bond distances ranging from 2.06–2.12 Å. In the third Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 39–57°. The Fe–O bond length is 1.98 Å. There are a spread of Fe–F bond distances ranging from 2.10–2.20 Å. In the fourth Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 41–57°. There are a spread of Fe–F bond distances ranging from 2.03–2.14 Å. In the fifth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 41–54°. The Fe–O bond length is 1.84 Å. There are a spread of Fe–F bond distances ranging from 2.01–2.12 Å. In the sixth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 46–57°. The Fe–O bond length is 2.06 Å. There are a spread of Fe–F bond distances ranging from 2.06–2.24 Å. In the seventh Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. The Fe–O bond length is 2.07 Å. There are a spread of Fe–F bond distances ranging from 2.06–2.25 Å. In the eighth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 39–55°. The Fe–O bond length is 1.83 Å. There are a spread of Fe–F bond distances ranging from 2.02–2.14 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. There are fourteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the sixth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the eighth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the ninth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the tenth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the eleventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the twelfth F1- site, F1- is bonded in a 3-coordinate geometry to three Fe+2.25+ atoms. In the thirteenth F1- site, F1- is bonded in a distorted T-shaped geometry to three Fe+2.25+ atoms. In the fourteenth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is Hydrophilite-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are five inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeO2F4 octahedra and edges with two FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 46–56°. The Fe–O bond length is 1.99 Å. There are three shorter (2.11 Å) and two longer (2.15 Å) Fe–F bond lengths. In the second Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form FeF6 octahedra that share corners with eight FeO2F4 octahedra and edges with two FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 48–55°. There are a spread of Fe–F bond distances ranging from 2.03–2.11 Å. In the third Fe+2.25+ site, Fe+2.25+ is bonded to two equivalent O2- and four F1- atoms to form a mixture of edge and corner-sharing FeO2F4 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. Both Fe–O bond lengths are 1.89 Å. All Fe–F bond lengths are 2.10 Å. In the fourth Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 48–55°. There are a spread of Fe–F bond distances ranging from 2.03–2.15 Å. In the fifth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two FeO2F4 octahedra. The corner-sharing octahedra tilt angles range from 46–56°. The Fe–O bond length is 1.92 Å. There are a spread of Fe–F bond distances ranging from 2.06–2.12 Å. O2- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. There are six inequivalent F1- sites. In the first F1- site, F1- is bonded in a 3-coordinate geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the sixth F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is zeta iron carbide-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of corner and edge-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are a spread of Fe–F bond distances ranging from 2.05–2.15 Å. In the second Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of corner and edge-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 41–57°. There are a spread of Fe–F bond distances ranging from 2.03–2.15 Å. In the third Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeF6 octahedra and edges with two equivalent FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 41–54°. The Fe–O bond length is 1.84 Å. There are a spread of Fe–F bond distances ranging from 2.02–2.11 Å. In the fourth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeF6 octahedra and edges with two equivalent FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 45–58°. The Fe–O bond length is 2.07 Å. There are a spread of Fe–F bond distances ranging from 2.04–2.24 Å. In the fifth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeF6 octahedra and edges with two equivalent FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. The Fe–O bond length is 2.07 Å. There are a spread of Fe–F bond distances ranging from 2.03–2.24 Å. In the sixth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 46–55°. The Fe–O bond length is 2.01 Å. There are a spread of Fe–F bond distances ranging from 2.14–2.19 Å. In the seventh Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 38–58°. The Fe–O bond length is 1.97 Å. There are a spread of Fe–F bond distances ranging from 2.12–2.17 Å. In the eighth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeF6 octahedra and edges with two equivalent FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 38–54°. The Fe–O bond length is 1.84 Å. There are a spread of Fe–F bond distances ranging from 2.02–2.14 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. There are fourteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the sixth F1- site, F1- is bonded in a 3-coordinate geometry to three Fe+2.25+ atoms. In the seventh F1- site, F1- is bonded in a 3-coordinate geometry to three Fe+2.25+ atoms. In the eighth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the ninth F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the tenth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the eleventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the twelfth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the thirteenth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fourteenth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is Hydrophilite-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are six inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 52–56°. There are a spread of Fe–F bond distances ranging from 2.00–2.18 Å. In the second Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 49–57°. There are a spread of Fe–F bond distances ranging from 1.98–2.17 Å. In the third Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeF6 octahedra and edges with two equivalent FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 46–56°. The Fe–O bond length is 2.06 Å. There are a spread of Fe–F bond distances ranging from 2.10–2.21 Å. In the fourth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeF6 octahedra and edges with two equivalent FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 45–57°. The Fe–O bond length is 2.05 Å. There are a spread of Fe–F bond distances ranging from 2.10–2.19 Å. In the fifth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 45–51°. The Fe–O bond length is 1.83 Å. There are a spread of Fe–F bond distances ranging from 2.05–2.11 Å. In the sixth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two equivalent FeF6 octahedra. The corner-sharing octahedra tilt angles range from 46–52°. The Fe–O bond length is 1.82 Å. There are four shorter (2.06 Å) and one longer (2.08 Å) Fe–F bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. There are ten inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the sixth F1- site, F1- is bonded in a distorted T-shaped geometry to three Fe+2.25+ atoms. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the eighth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the ninth F1- site, F1- is bonded in a trigonal planar geometry to three Fe+2.25+ atoms. In the tenth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Fe4OF7 is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent Fe+2.25+ sites. In the first Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two FeF6 octahedra. The corner-sharing octahedra tilt angles range from 41–55°. The Fe–O bond length is 2.04 Å. There are a spread of Fe–F bond distances ranging from 2.06–2.18 Å. In the second Fe+2.25+ site, Fe+2.25+ is bonded to six F1- atoms to form a mixture of edge and corner-sharing FeF6 octahedra. The corner-sharing octahedra tilt angles range from 44–59°. There are a spread of Fe–F bond distances ranging from 2.04–2.15 Å. In the third Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form a mixture of edge and corner-sharing FeOF5 octahedra. The corner-sharing octahedra tilt angles range from 41–56°. The Fe–O bond length is 1.90 Å. There are a spread of Fe–F bond distances ranging from 2.02–2.06 Å. In the fourth Fe+2.25+ site, Fe+2.25+ is bonded to one O2- and five F1- atoms to form FeOF5 octahedra that share corners with eight FeOF5 octahedra and edges with two FeF6 octahedra. The corner-sharing octahedra tilt angles range from 48–59°. The Fe–O bond length is 1.97 Å. There are a spread of Fe–F bond distances ranging from 2.08–2.20 Å. O2- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the sixth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three Fe+2.25+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe4OF7 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗

DOE OSTI2020