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Materials Data on Fe2PO5 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↗

Materials Data on Fe3(PO4)4 by Materials Project

Fe3(PO4)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are nine inequivalent Fe sites. In the first Fe site, Fe is bonded to five O atoms to form distorted FeO5 trigonal bipyramids that share a cornercorner with one FeO6 octahedra, corners with three PO4 tetrahedra, an edgeedge with one FeO6 octahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. There are a spread of Fe–O bond distances ranging from 1.85–2.11 Å. In the second Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with six PO4 tetrahedra and an edgeedge with one FeO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.90–2.34 Å. In the third Fe site, Fe is bonded to five O atoms to form distorted FeO5 trigonal bipyramids that share a cornercorner with one FeO6 octahedra, corners with three PO4 tetrahedra, an edgeedge with one FeO6 octahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 52°. There are a spread of Fe–O bond distances ranging from 1.84–2.15 Å. In the fourth Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with six PO4 tetrahedra and a cornercorner with one FeO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.95–2.28 Å. In the fifth Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with six PO4 tetrahedra and a cornercorner with one FeO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.96–2.20 Å. In the sixth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with six PO4 tetrahedra and an edgeedge with one FeO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.94–2.42 Å. In the seventh Fe site, Fe is bonded to five O atoms to form distorted FeO5 trigonal bipyramids that share a cornercorner with one FeO6 octahedra, corners with three PO4 tetrahedra, an edgeedge with one FeO6 octahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Fe–O bond distances ranging from 1.84–2.11 Å. In the eighth Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with six PO4 tetrahedra and a cornercorner with one FeO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.97–2.26 Å. In the ninth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with six PO4 tetrahedra and an edgeedge with one FeO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.94–2.42 Å. There are twelve inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and corners with two FeO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 32–52°. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 32–47°. All P–O bond lengths are 1.54 Å. In the third P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and an edgeedge with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 31–51°. There is two shorter (1.54 Å) and two longer (1.57 Å) P–O bond length. In the fourth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 34–54°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the fifth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 31–46°. All P–O bond lengths are 1.54 Å. In the sixth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 31–45°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. In the seventh P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 30–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the eighth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and an edgeedge with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 35–50°. There are a spread of P–O bond distances ranging from 1.53–1.58 Å. In the ninth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra. The corner-sharing octahedra tilt angles range from 33–44°. There are a spread of P–O bond distances ranging from 1.53–1.58 Å. In the tenth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 27–47°. There is two shorter (1.54 Å) and two longer (1.55 Å) P–O bond length. In the eleventh P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and an edgeedge with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 31–51°. There is two shorter (1.54 Å) and two longer (1.57 Å) P–O bond length. In the twelfth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with three FeO6 octahedra and a cornercorner with one FeO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 35–54°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. There are forty-eight inequivalent O sites. In the first O site, O is bonded in a 3-coordinate geometry to two Fe and one P atom. In the second O site, O is bonded in a single-bond geometry to one P atom. In the third O site, O is bonded in a 3-coordinate geometry to two Fe and one P atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the fifth O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the sixth O site, O is bonded in a 3-coordinate geometry to two Fe and one P atom. In the seventh O site, O is bonded in a distorted T-shaped geometry to two Fe and one P atom. In the eighth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the ninth O site, O is bonded in a distorted trigonal planar geometry to two Fe and one P atom. In the tenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the eleventh O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twelfth O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the thirteenth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the fourteenth O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the fifteenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the sixteenth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the seventeenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the eighteenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the nineteenth O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the twentieth O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the twenty-first O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the twenty-second O site, O is bonded in a distorted T-shaped geometry to two Fe and one P atom. In the twenty-third O site, O is bonded in a single-bond geometry to one P atom. In the twenty-fourth O site, O is bonded in a distorted T-shaped geometry to two Fe and one P atom. In the twenty-fifth O site, O is bonded in a single-bond geometry to one P atom. In the twenty-sixth O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the twenty-seventh O site, O is bonded in a single-bond geometry to one P atom. In the twenty-eighth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the twenty-ninth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the thirtieth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the thirty-first O site, O is bonded in a distorted trigonal planar geometry to two Fe and one P atom. In the thirty-second O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the thirty-third O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the thirty-fourth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the thirty-fifth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the thirty-sixth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the thirty-seventh O site, O is bonded in a 3-coordinate geometry to two Fe and one P atom. In the thirty-eighth O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the thirty-ninth O site, O is bonded in a single-bond geometry to one P atom. In the fortieth O site, O is bonded in a single-bond geometry to one P atom. In the forty-first O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the forty-second O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the forty-third O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the forty-fourth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the forty-fifth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the forty-sixth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the forty-seventh O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the forty-eighth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom.

36 MATERIALS SCIENCE↗

Materials Data on Fe2P3O10 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↗

Materials Data on Fe(PO4)3 by Materials Project

Fe(PO4)3 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Fe is bonded to six equivalent O atoms to form FeO6 octahedra that share corners with six equivalent PO4 tetrahedra. All Fe–O bond lengths are 2.00 Å. P is bonded to four O atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra. The corner-sharing octahedral tilt angles are 31°. There is two shorter (1.53 Å) and two longer (1.55 Å) P–O bond length. There are two inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the second O site, O is bonded in a single-bond geometry to one P atom.

36 MATERIALS SCIENCE↗

Materials Data on Fe3(PO8)2 by Materials Project

Fe3(PO8)2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one Fe3(PO8)2 sheet oriented in the (0, 1, 0) direction. there are two inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with two equivalent PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.93–2.10 Å. In the second Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four equivalent PO4 tetrahedra and an edgeedge with one FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.97–2.09 Å. P is bonded to four O atoms to form PO4 tetrahedra that share corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 49–53°. There is three shorter (1.55 Å) and one longer (1.58 Å) P–O bond length. There are eight inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the second O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the fourth O site, O is bonded in a 3-coordinate geometry to two equivalent Fe and one P atom. In the fifth O site, O is bonded in a 2-coordinate geometry to one Fe and one O atom. The O–O bond length is 1.32 Å. In the sixth O site, O is bonded in a 2-coordinate geometry to one Fe and one O atom. The O–O bond length is 1.30 Å. In the seventh O site, O is bonded in a 2-coordinate geometry to one Fe and one O atom. In the eighth O site, O is bonded in a 2-coordinate geometry to one Fe and one O atom.

36 MATERIALS SCIENCE↗

Materials Data on FePO5 by Materials Project

(Fe3P3O14)2O2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional and consists of four water molecules and one Fe3P3O14 framework. In the Fe3P3O14 framework, there are two inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with two equivalent PO4 tetrahedra, corners with two equivalent FeO5 trigonal bipyramids, and an edgeedge with one PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.82–2.14 Å. In the second Fe site, Fe is bonded to five O atoms to form FeO5 trigonal bipyramids that share a cornercorner with one FeO6 octahedra and corners with five PO4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. There are a spread of Fe–O bond distances ranging from 1.91–2.13 Å. There are two inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share a cornercorner with one FeO6 octahedra and corners with three equivalent FeO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 47°. There are a spread of P–O bond distances ranging from 1.53–1.58 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four equivalent FeO5 trigonal bipyramids and an edgeedge with one FeO6 octahedra. There is two shorter (1.53 Å) and two longer (1.58 Å) P–O bond length. There are seven inequivalent O sites. In the first O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the second O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the third O site, O is bonded in a single-bond geometry to one Fe atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the fifth O site, O is bonded in a distorted trigonal planar geometry to two Fe and one P atom. In the sixth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the seventh O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom.

36 MATERIALS SCIENCE↗

Materials Data on Fe3(P2O7)2 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↗

Materials Data on FeP2O7 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↗

Materials Data on Fe5(PO4)4 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↗

Materials Data on Fe(PO3)3 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↗

Materials Data on FeP4O11 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↗

Materials Data on FeP2O7 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↗

Materials Data on FePO4 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↗

Materials Data on Fe3(PO8)2 by Materials Project

Fe3(PO8)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with two equivalent PO4 tetrahedra. There are two shorter (1.90 Å) and four longer (2.11 Å) Fe–O bond lengths. In the second Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with four equivalent PO4 tetrahedra and an edgeedge with one FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 1.99–2.13 Å. P is bonded to four O atoms to form PO4 tetrahedra that share corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 27–51°. There are a spread of P–O bond distances ranging from 1.54–1.60 Å. There are five inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the second O site, O is bonded in a 3-coordinate geometry to two equivalent Fe and one P atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the fourth O site, O is bonded in a water-like geometry to one Fe and one O atom. The O–O bond length is 1.30 Å. In the fifth O site, O is bonded in a bent 120 degrees geometry to one Fe and one O atom.

36 MATERIALS SCIENCE↗

Materials Data on Fe3(P2O7)2 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↗

Materials Data on Fe9PO12 by Materials Project

Fe9PO12 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are seven inequivalent Fe+2.11+ sites. In the first Fe+2.11+ site, Fe+2.11+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing FeO6 octahedra. The corner-sharing octahedra tilt angles range from 0–6°. There are a spread of Fe–O bond distances ranging from 2.14–2.72 Å. In the second Fe+2.11+ site, Fe+2.11+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with two equivalent PO4 tetrahedra, corners with four equivalent FeO4 tetrahedra, and edges with six FeO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Fe–O bond distances ranging from 2.11–2.51 Å. In the third Fe+2.11+ site, Fe+2.11+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one FeO6 octahedra, corners with two equivalent FeO4 tetrahedra, corners with four equivalent PO4 tetrahedra, and edges with six FeO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Fe–O bond distances ranging from 1.99–2.31 Å. In the fourth Fe+2.11+ site, Fe+2.11+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with five FeO6 octahedra, a cornercorner with one FeO4 tetrahedra, and edges with ten FeO6 octahedra. The corner-sharing octahedra tilt angles range from 3–19°. There are a spread of Fe–O bond distances ranging from 2.11–2.40 Å. In the fifth Fe+2.11+ site, Fe+2.11+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with five FeO6 octahedra, a cornercorner with one PO4 tetrahedra, and edges with ten FeO6 octahedra. The corner-sharing octahedra tilt angles range from 4–18°. There are a spread of Fe–O bond distances ranging from 2.15–2.28 Å. In the sixth Fe+2.11+ site, Fe+2.11+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles are 6°. There are a spread of Fe–O bond distances ranging from 1.99–2.19 Å. In the seventh Fe+2.11+ site, Fe+2.11+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with eight FeO6 octahedra and corners with two equivalent FeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 54–60°. There is two shorter (1.89 Å) and two longer (1.92 Å) Fe–O bond length. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with eight FeO6 octahedra and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 52–63°. There is two shorter (1.56 Å) and two longer (1.74 Å) P–O bond length. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded to four Fe+2.11+ atoms to form distorted OFe4 trigonal pyramids that share a cornercorner with one OFe6 octahedra, corners with two equivalent OFe5 square pyramids, corners with five equivalent OFe4 trigonal pyramids, edges with two equivalent OFe6 octahedra, and an edgeedge with one OFe4 trigonal pyramid. The corner-sharing octahedral tilt angles are 5°. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Fe+2.11+ and one P5+ atom. In the third O2- site, O2- is bonded to six Fe+2.11+ atoms to form OFe6 octahedra that share corners with four equivalent OFe6 octahedra, a cornercorner with one OFe4 trigonal pyramid, edges with six OFe6 octahedra, and edges with four OFe5 square pyramids. The corner-sharing octahedra tilt angles range from 3–9°. In the fourth O2- site, O2- is bonded in a 6-coordinate geometry to six Fe+2.11+ atoms. In the fifth O2- site, O2- is bonded to six Fe+2.11+ atoms to form OFe6 octahedra that share corners with four equivalent OFe5 square pyramids, edges with six OFe6 octahedra, edges with two equivalent OFe5 square pyramids, and edges with four equivalent OFe4 trigonal pyramids. In the sixth O2- site, O2- is bonded to five Fe+2.11+ atoms to form OFe5 square pyramids that share a cornercorner with one OFe5 square pyramid, edges with four equivalent OFe6 octahedra, and edges with two equivalent OFe5 square pyramids. In the seventh O2- site, O2- is bonded to five Fe+2.11+ atoms to form OFe5 square pyramids that share corners with four equivalent OFe6 octahedra, a cornercorner with one OFe5 square pyramid, corners with four equivalent OFe4 trigonal pyramids, edges with six OFe6 octahedra, and edges with two equivalent OFe5 square pyramids. The corner-sharing octahedral tilt angles are 11°. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Fe+2.11+ and two equivalent P5+ atoms. In the ninth O2- site, O2- is bonded in a trigonal planar geometry to three Fe+2.11+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Fe7(PO4)6 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↗

Materials Data on Fe3P4O15 by Materials Project

Fe3P4O15 crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. there are three inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. There are a spread of Fe–O bond distances ranging from 1.93–2.22 Å. In the second Fe site, Fe is bonded in a 5-coordinate geometry to five O atoms. There are a spread of Fe–O bond distances ranging from 1.92–2.08 Å. In the third Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with six PO4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. There are a spread of Fe–O bond distances ranging from 1.96–2.19 Å. There are four inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with two FeO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 25–52°. There are a spread of P–O bond distances ranging from 1.51–1.59 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with two FeO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 47–53°. There are a spread of P–O bond distances ranging from 1.52–1.59 Å. In the third P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 34–48°. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. In the fourth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra and an edgeedge with one FeO6 octahedra. The corner-sharing octahedral tilt angles are 54°. There are a spread of P–O bond distances ranging from 1.52–1.59 Å. There are fifteen inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to two P atoms. In the second O site, O is bonded in a water-like geometry to one Fe and one P atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the fourth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the fifth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the sixth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the seventh O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the eighth O site, O is bonded in a bent 120 degrees geometry to one Fe and one P atom. In the ninth O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom. In the tenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the eleventh O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twelfth O site, O is bonded in a distorted trigonal planar geometry to two Fe and one P atom. In the thirteenth O site, O is bonded in a distorted trigonal non-coplanar geometry to two Fe and one P atom. In the fourteenth O site, O is bonded in a distorted trigonal planar geometry to two Fe and one P atom. In the fifteenth O site, O is bonded in a 2-coordinate geometry to one Fe and one P atom.

36 MATERIALS SCIENCE↗