DOI: 10.17188/1738479
title: Materials Data on Li3CrPCO7 by Materials Project

description: Li3CrCPO7 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.88–2.23 Å. In the second Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.89–2.21 Å. In the third Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 trigonal bipyramids that share corners with two CrO6 octahedra, corners with three PO4 tetrahedra, an edgeedge with one CrO6 octahedra, and an edgeedge with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 66–89°. There are a spread of Li–O bond distances ranging from 2.06–2.51 Å. In the fourth Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 trigonal bipyramids that share corners with two CrO6 octahedra, corners with three PO4 tetrahedra, edges with two CrO6 octahedra, and an edgeedge with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 67–87°. There are a spread of Li–O bond distances ranging from 2.10–2.33 Å. In the fifth Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.03–2.61 Å. In the sixth Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.98–2.20 Å. In the seventh Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.06–2.57 Å. In the eighth Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 trigonal bipyramids that share corners with two CrO6 octahedra, corners with three PO4 tetrahedra, an edgeedge with one CrO6 octahedra, and an edgeedge with one LiO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 66–88°. There are a spread of Li–O bond distances ranging from 2.07–2.47 Å. In the ninth Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 trigonal bipyramids that share corners with two CrO6 octahedra, corners with three PO4 tetrahedra, an edgeedge with one CrO6 octahedra, and edges with two LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 66–87°. There are a spread of Li–O bond distances ranging from 2.11–2.36 Å. In the tenth Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 trigonal bipyramids that share a cornercorner with one CrO6 octahedra, corners with three PO4 tetrahedra, an edgeedge with one CrO6 octahedra, and an edgeedge with one LiO5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 88°. There are a spread of Li–O bond distances ranging from 2.11–2.44 Å. In the eleventh Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.88–2.21 Å. In the twelfth Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.91–2.27 Å. There are four inequivalent Cr2+ sites. In the first Cr2+ site, Cr2+ is bonded to six O2- atoms to form distorted CrO6 octahedra that share a cornercorner with one CrO6 octahedra, corners with three PO4 tetrahedra, and an edgeedge with one LiO5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 69°. There are a spread of Cr–O bond distances ranging from 2.07–2.63 Å. In the second Cr2+ site, Cr2+ is bonded to six O2- atoms to form distorted CrO6 octahedra that share corners with four PO4 tetrahedra, corners with four LiO5 trigonal bipyramids, and edges with two LiO5 trigonal bipyramids. There are a spread of Cr–O bond distances ranging from 2.04–2.48 Å. In the third Cr2+ site, Cr2+ is bonded to six O2- atoms to form distorted CrO6 octahedra that share a cornercorner with one CrO6 octahedra, corners with four PO4 tetrahedra, corners with two LiO5 trigonal bipyramids, and an edgeedge with one LiO5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 69°. There are a spread of Cr–O bond distances ranging from 2.04–2.52 Å. In the fourth Cr2+ site, Cr2+ is bonded to six O2- atoms to form distorted CrO6 octahedra that share corners with four PO4 tetrahedra, corners with three LiO5 trigonal bipyramids, and edges with two LiO5 trigonal bipyramids. There are a spread of Cr–O bond distances ranging from 2.05–2.50 Å. There are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.29–1.31 Å. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.28 Å) and two longer (1.31 Å) C–O bond length. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.29–1.31 Å. In the fourth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.28–1.32 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with five CrO6 octahedra and corners with three LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 48–69°. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three CrO6 octahedra and corners with four LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 46–65°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four CrO6 octahedra and corners with six LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 47–66°. There is two shorter (1.55 Å) and two longer (1.56 Å) P–O bond length. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three CrO6 octahedra and corners with two equivalent LiO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 46–54°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. There are twenty-eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Li1+, one Cr2+, and one C4+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Li1+, one Cr2+, and one C4+ atom. In the third O2- site, O2- is bonded in a distorted tetrahedral geometry to two Li1+, one Cr2+, and one C4+ atom. In the fourth O2- site, O2- is bonded to three Li1+ and one C4+ atom to form distorted OLi3C tetrahedra that share corners with two equivalent OLi3P trigonal pyramids and an edgeedge with one OLi2CrP tetrahedra. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one C4+ atom. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one C4+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the tenth O2- site, O2- is bonded to three Li1+ and one P5+ atom to form distorted corner-sharing OLi3P trigonal pyramids. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the thirteenth O2- site, O2- is bonded to two Li1+, one Cr2+, and one P5+ atom to form distorted OLi2CrP tetrahedra that share corners with three OLi3P trigonal pyramids and an edgeedge with one OLi3C tetrahedra. In the fourteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two Cr2+, and one P5+ atom. In the fifteenth O2- site, O2- is bonded to two Li1+, one Cr2+, and one P5+ atom to form distorted OLi2CrP tetrahedra that share a cornercorner with one OLi2CrP trigonal pyramid and an edgeedge with one OLi3C tetrahedra. In the sixteenth O2- site, O2- is bonded to three Li1+ and one P5+ atom to form OLi3P tetrahedra that share corners with four OLi3P trigonal pyramids and an edgeedge with one OLi3C tetrahedra. In the seventeenth O2- site, O2- is bonded to two Li1+, one Cr2+, and one P5+ atom to form distorted corner-sharing OLi2CrP trigonal pyramids. In the eighteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the nineteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the twentieth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the twenty-first O2- site, O2- is bonded to two Li1+, one Cr2+, and one P5+ atom to form distorted corner-sharing OLi2CrP trigonal pyramids. In the twenty-second O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one P5+ atom. In the twenty-third O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one C4+ atom. In the twenty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cr2+, and one C4+ atom. In the twenty-fifth O2- site, O2- is bonded to three Li1+ and one C4+ atom to form a mixture of edge and corner-sharing OLi3C tetrahedra. In the twenty-sixth O2- site, O2- is bonded to three Li1+ and one C4+ atom to form distorted OLi3C tetrahedra that share corners with three OLi2CrP trigonal pyramids and an edgeedge with one OLi3P tetrahedra. In the twenty-seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Li1+, one Cr2+, and one C4+ atom. In the twenty-eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Li1+, one Cr2+, and one C4+ atom.