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Materials Data on LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Li is bonded to four O atoms to form distorted LiO4 tetrahedra that share corners with three equivalent FeO6 octahedra and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 28–49°. There are a spread of Li–O bond distances ranging from 2.02–2.09 Å. Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with three equivalent LiO4 tetrahedra and corners with four equivalent PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.29 Å. C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. P is bonded to four O atoms to form PO4 tetrahedra that share corners with four equivalent FeO6 octahedra and an edgeedge with one LiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 30–45°. There is two shorter (1.54 Å) and two longer (1.55 Å) P–O bond length. There are six inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the third O site, O is bonded in a water-like geometry to one Fe and one C atom. In the fourth O site, O is bonded in a distorted T-shaped geometry to one Li, 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.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Li sites. In the first Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.11 Å. In the second Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share corners with two FeO6 octahedra, corners with three PO4 tetrahedra, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedra tilt angles range from 68–76°. There are a spread of Li–O bond distances ranging from 1.94–2.44 Å. In the third Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.02–2.11 Å. In the fourth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.01–2.11 Å. There are four inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.23 Å. In the second Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra, a cornercorner with one LiO5 trigonal bipyramid, and an edgeedge with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.90–2.27 Å. In the third Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.89–2.27 Å. In the fourth Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with four PO4 tetrahedra and a cornercorner with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.91–2.12 Å. There are four inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.25–1.32 Å. In the second C site, C is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.26 Å) and two longer (1.30 Å) C–O bond length. In the third C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the fourth C site, C is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.25 Å) and two longer (1.30 Å) C–O bond length. 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 four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 32–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and corners with two equivalent LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 37–46°. There are a spread of P–O bond distances ranging from 1.53–1.57 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 32–46°. There is one shorter (1.54 Å) and three longer (1.55 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 four FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 38–45°. All P–O bond lengths are 1.55 Å. There are twenty-eight inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Li and one C atom. In the fifth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C atom. In the sixth O site, O is bonded in an L-shaped geometry to one Fe and one C 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 distorted T-shaped geometry to one Li, one Fe, and one P atom. In the ninth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the tenth O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, 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 T-shaped geometry to one Li, one Fe, and one P atom. In the thirteenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the fourteenth O site, O is bonded in a distorted trigonal planar geometry to one Li, 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 bent 150 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 distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twentieth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-first O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twenty-second O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-third O site, O is bonded in a water-like geometry to one Fe and one C atom. In the twenty-fourth O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the twenty-fifth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the twenty-sixth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the twenty-seventh O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the twenty-eighth O site, O is bonded in an L-shaped geometry to one Fe and one C atom.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Li sites. In the first Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.11 Å. In the second Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.01–2.10 Å. In the third Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share corners with two FeO6 octahedra, corners with three PO4 tetrahedra, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedra tilt angles range from 68–75°. There are a spread of Li–O bond distances ranging from 1.95–2.43 Å. In the fourth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.01–2.12 Å. In the fifth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.01–2.10 Å. In the sixth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.02–2.11 Å. There are six inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra, a cornercorner with one LiO5 trigonal bipyramid, and an edgeedge with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.91–2.25 Å. In the second Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.89–2.24 Å. In the third Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.21 Å. In the fourth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.89–2.25 Å. In the fifth Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with four PO4 tetrahedra and a cornercorner with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.91–2.11 Å. In the sixth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.89–2.24 Å. There are six inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the second C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the third C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.32 Å. In the fourth C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the fifth C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the sixth C site, C is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.25 Å) and two longer (1.30 Å) C–O bond length. There are six inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and corners with two equivalent LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 36–46°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the second 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 32–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 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 32–44°. There is one shorter (1.54 Å) and three longer (1.55 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 four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 31–44°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. In the fifth 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 32–46°. There is two shorter (1.54 Å) and two longer (1.55 Å) P–O bond length. In the sixth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 37–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. There are forty-two inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C atom. In the third O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the fourth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the sixth O site, O is bonded in a bent 150 degrees geometry to one Li and one C atom. In the seventh O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the eighth O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the ninth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C atom. In the tenth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the eleventh O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twelfth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirteenth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the fourteenth O site, O is bonded in a distorted T-shaped geometry to one Li, 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 T-shaped geometry to one Li, 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 150 degrees geometry to one Fe and one P atom. In the twentieth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-first O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one P atom. In the twenty-second O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-third O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-fourth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-fifth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-sixth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-seventh O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-eighth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-ninth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirtieth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirty-first O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the thirty-second O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirty-third O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirty-fourth O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the thirty-fifth O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the thirty-sixth O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the thirty-seventh O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the thirty-eighth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the thirty-ninth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the fortieth O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the forty-first O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the forty-second O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Li sites. In the first Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.08 Å. In the second Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.08 Å. In the third Li site, Li is bonded to five O atoms to form LiO5 trigonal bipyramids that share corners with two FeO6 octahedra, corners with three PO4 tetrahedra, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedra tilt angles range from 67–77°. There are a spread of Li–O bond distances ranging from 2.00–2.40 Å. In the fourth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 1.97–2.18 Å. In the fifth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.10 Å. In the sixth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.08 Å. There are six inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra and a cornercorner with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.92–2.30 Å. In the second Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.27 Å. In the third Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.28 Å. In the fourth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra, a cornercorner with one LiO5 trigonal bipyramid, and an edgeedge with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.91–2.16 Å. In the fifth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.28 Å. In the sixth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.29 Å. There are six inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.30 Å. In the second C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the third C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.27–1.31 Å. In the fourth C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.30 Å. In the fifth C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the sixth C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. There are six inequivalent P sites. In the first 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 31–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 38–44°. There are a spread of P–O bond distances ranging from 1.53–1.57 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 31–44°. There is one shorter (1.54 Å) and three longer (1.55 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 four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 31–47°. There are a spread of P–O bond distances ranging from 1.53–1.56 Å. In the fifth 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 31–45°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. In the sixth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and corners with two equivalent LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 33–48°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. There are forty-two inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the third O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the fourth O site, O is bonded in a single-bond geometry to one C atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the sixth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the seventh O site, O is bonded in a water-like geometry to one Fe and one C atom. In the eighth O site, O is bonded in a water-like geometry to one Fe and one C atom. In the ninth O site, O is bonded in a water-like geometry to one Fe and one C atom. In the tenth O site, O is bonded in a distorted 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 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirteenth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the fourteenth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the fifteenth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the sixteenth O site, O is bonded in a bent 150 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 150 degrees geometry to one Fe and one P atom. In the twentieth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-first O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-second O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-third O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-fourth O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one P atom. In the twenty-fifth O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one P atom. In the twenty-sixth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-seventh O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-eighth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-ninth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirtieth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the thirty-first O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the thirty-second O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the thirty-third O site, O is bonded in a distorted trigonal pyramidal geometry to two Li, one Fe, and one P atom. In the thirty-fourth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one C atom. In the thirty-fifth O site, O is bonded in a water-like geometry to one Fe and one C atom. In the thirty-sixth O site, O is bonded in a water-like geometry to one Fe and one C atom. In the thirty-seventh O site, O is bonded in a trigonal non-coplanar geometry to two Li and one C atom. In the thirty-eighth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the thirty-ninth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the fortieth O site, O is bonded in a distorted L-shaped geometry to one Fe and one C atom. In the forty-first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the forty-second O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 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 LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Li sites. In the first Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.11 Å. In the second Li site, Li is bonded in a 5-coordinate geometry to five O atoms. There are a spread of Li–O bond distances ranging from 2.01–2.57 Å. In the third Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.01–2.08 Å. In the fourth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.03–2.14 Å. There are four inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.88–2.32 Å. In the second Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.89–2.26 Å. In the third Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.25 Å. In the fourth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.92–2.19 Å. There are four inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the second C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the third C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.30 Å. In the fourth C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.30 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 four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 34–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the second 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 33–47°. There are a spread of P–O bond distances ranging from 1.53–1.57 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 37–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the fourth 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 32–46°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. There are twenty-eight inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the third O site, O is bonded in a single-bond geometry to one C atom. In the fourth O site, O is bonded in a 1-coordinate geometry to one Li, one Fe, and one C atom. In the fifth O site, O is bonded in a distorted trigonal non-coplanar geometry to two Li and one C atom. In the sixth O site, O is bonded in a water-like geometry to one Fe and one C atom. In the seventh O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the eighth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the ninth O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, 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 distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twelfth O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one P atom. In the thirteenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the fourteenth O site, O is bonded in a 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 bent 150 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 3-coordinate geometry to one Li, one Fe, and one P atom. In the twentieth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twenty-first O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-second O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-third O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the twenty-fourth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the twenty-fifth O site, O is bonded in a distorted L-shaped geometry to one Fe and one C atom. In the twenty-sixth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the twenty-seventh O site, O is bonded in a distorted L-shaped geometry to one Fe and one C atom. In the twenty-eighth O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 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 LiFePCO7 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 LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Li is bonded to five O atoms to form LiO5 trigonal bipyramids that share corners with two equivalent PO4 tetrahedra and edges with two equivalent FeO6 octahedra. There are a spread of Li–O bond distances ranging from 1.99–2.20 Å. Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four equivalent PO4 tetrahedra and edges with two equivalent LiO5 trigonal bipyramids. There are a spread of Fe–O bond distances ranging from 1.92–2.23 Å. C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.30 Å. P is bonded to four O atoms to form PO4 tetrahedra that share corners with four equivalent FeO6 octahedra and corners with two equivalent LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 43–47°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. There are seven inequivalent O sites. In the first O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a T-shaped geometry to one Li, one Fe, and one C atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the fourth O site, O is bonded in a distorted trigonal planar geometry to one Li, 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 distorted trigonal planar geometry to one Li, one Fe, and one P atom. In the seventh O site, O is bonded in a distorted bent 150 degrees geometry to one Fe and one P atom.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Li sites. In the first Li site, Li is bonded to four O atoms to form distorted LiO4 tetrahedra that share corners with three FeO6 octahedra and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 27–49°. There are a spread of Li–O bond distances ranging from 2.01–2.07 Å. In the second Li site, Li is bonded to four O atoms to form distorted LiO4 tetrahedra that share corners with three FeO6 octahedra and an edgeedge with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 26–51°. There are a spread of Li–O bond distances ranging from 2.03–2.12 Å. In the third Li site, Li is bonded in a 5-coordinate geometry to five O atoms. There are a spread of Li–O bond distances ranging from 1.93–2.46 Å. In the fourth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.18 Å. There are four 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 LiO4 tetrahedra and corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.32 Å. In the second Fe site, Fe is bonded to six O atoms to form FeO6 octahedra that share corners with two equivalent LiO4 tetrahedra and corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.91–2.11 Å. In the third Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share a cornercorner with one LiO4 tetrahedra and corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.91–2.32 Å. In the fourth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share a cornercorner with one LiO4 tetrahedra and corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.91–2.36 Å. There are four inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the second C site, C is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.25 Å) and two longer (1.30 Å) C–O bond length. In the third C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.32 Å. In the fourth C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.30 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 four FeO6 octahedra and an edgeedge with one LiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 29–45°. There are a spread of P–O bond distances ranging from 1.53–1.56 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and an edgeedge with one LiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 30–44°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. 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 37–47°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the fourth 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 37–48°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. There are twenty-eight inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the third O site, O is bonded in a water-like geometry to one Fe and one C atom. In the fourth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the fifth O site, O is bonded in a distorted T-shaped geometry to one Li, 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 150 degrees geometry to one Fe and one P atom. In the ninth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the tenth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the eleventh O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twelfth O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the thirteenth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the fourteenth O site, O is bonded in an L-shaped geometry to one Fe and one C atom. In the fifteenth O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the sixteenth O site, O is bonded in a bent 150 degrees geometry to one Li and one C atom. In the seventeenth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C 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 distorted trigonal non-coplanar geometry to one Li, one Fe, and one P atom. In the twentieth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-first O site, O is bonded in a trigonal planar geometry to one Li, one Fe, and one P atom. In the twenty-second O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-third O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the twenty-fourth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twenty-fifth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twenty-sixth O site, O is bonded in a water-like geometry to one Fe and one C atom. In the twenty-seventh O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the twenty-eighth O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Li sites. In the first Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.02–2.15 Å. In the second Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share corners with two FeO6 octahedra, corners with three PO4 tetrahedra, and an edgeedge with one FeO6 octahedra. The corner-sharing octahedra tilt angles range from 66–79°. There are a spread of Li–O bond distances ranging from 1.97–2.34 Å. In the third Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.09 Å. In the fourth Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.15 Å. There are four inequivalent Fe sites. In the first Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra and an edgeedge with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.90–2.27 Å. In the second Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra and a cornercorner with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.90–2.22 Å. In the third Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra and a cornercorner with one LiO5 trigonal bipyramid. There are a spread of Fe–O bond distances ranging from 1.90–2.14 Å. In the fourth Fe site, Fe is bonded to six O atoms to form distorted FeO6 octahedra that share corners with four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.91–2.24 Å. There are four inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the second C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.31 Å. In the third C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.25–1.31 Å. In the fourth C site, C is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.26 Å) and two longer (1.30 Å) C–O bond length. 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 four FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 31–47°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 37–46°. There is three shorter (1.54 Å) and one longer (1.57 Å) P–O bond length. In the third P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 37–45°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the fourth 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 33–45°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. There are twenty-eight inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the fourth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C atom. In the fifth O site, O is bonded in a bent 150 degrees geometry to one Li and one C atom. In the sixth O site, O is bonded in a water-like geometry to one Fe and one C 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 distorted bent 150 degrees geometry to one Fe and one P atom. In the ninth O site, O is bonded in a distorted trigonal pyramidal geometry to two Li, one Fe, and one P atom. In the tenth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the eleventh O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, one Fe, and one P atom. In the twelfth O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, one Fe, and one P atom. In the thirteenth O site, O is bonded in a bent 150 degrees geometry to one Fe and one P atom. In the fourteenth O site, O is bonded in a 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 bent 150 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 3-coordinate geometry to one Li, one Fe, and one P atom. In the twentieth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twenty-first O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one P atom. In the twenty-second O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one P atom. In the twenty-third O site, O is bonded in a distorted L-shaped geometry to one Fe and one C atom. In the twenty-fourth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the twenty-fifth O site, O is bonded in a distorted L-shaped geometry to one Fe and one C atom. In the twenty-sixth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the twenty-seventh O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one C atom. In the twenty-eighth O site, O is bonded in an L-shaped geometry to one Fe and one C atom.

36 MATERIALS SCIENCE↗

Materials Data on LiFePCO7 by Materials Project

LiFeCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Li sites. In the first Li site, Li is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Li–O bond distances ranging from 2.00–2.51 Å. In the second Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share corners with two PO4 tetrahedra. There are a spread of Li–O bond distances ranging from 2.01–2.34 Å. 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 four PO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.90–2.21 Å. In the second Fe site, Fe is bonded in a 5-coordinate geometry to six O atoms. There are a spread of Fe–O bond distances ranging from 1.94–2.51 Å. There are two inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.26–1.30 Å. In the second C site, C is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.26 Å) and two longer (1.30 Å) C–O bond length. There are two inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 44–48°. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with two equivalent FeO6 octahedra and a cornercorner with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 40–47°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. There are fourteen inequivalent O sites. In the first O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C atom. In the second O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one C atom. In the third O site, O is bonded in a bent 150 degrees geometry to one Li and one C atom. In the fourth O site, O is bonded in a 3-coordinate geometry to one Li, 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 distorted trigonal planar geometry to one Li, one Fe, and one P atom. In the seventh O site, O is bonded in a 2-coordinate geometry to one Li, one Fe, and one P atom. In the eighth O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one P atom. In the ninth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the tenth O site, O is bonded in a distorted bent 120 degrees geometry to one Fe and one P atom. In the eleventh O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, one Fe, and one P atom. In the twelfth O site, O is bonded in a bent 120 degrees geometry to one Li and one C atom. In the thirteenth O site, O is bonded in a distorted bent 150 degrees geometry to one Li, one Fe, and one C atom. In the fourteenth O site, O is bonded in a distorted T-shaped geometry to one Li, one Fe, and one C atom.

36 MATERIALS SCIENCE↗