Materials Data on Li9Fe4(BO3)8 by Materials Project

Li9Fe4(BO3)8 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are nine inequivalent Li sites. In the first Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one LiO5 trigonal bipyramid, and edges with two FeO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 2.00–2.32 Å. In the second Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share a cornercorner with one FeO5 trigonal bipyramid, corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one LiO4 tetrahedra, an edgeedge with one FeO5 trigonal bipyramid, and edges with two LiO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.99–2.50 Å. In the third Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one LiO5 trigonal bipyramid, and edges with two FeO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.99–2.34 Å. In the fourth Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share a cornercorner with one FeO5 trigonal bipyramid, corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one FeO5 trigonal bipyramid, and edges with two LiO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.96–2.35 Å. In the fifth Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share a cornercorner with one FeO5 trigonal bipyramid, corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one FeO5 trigonal bipyramid, and edges with two LiO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.98–2.38 Å. In the sixth Li site, Li is bonded to five O atoms to form LiO5 trigonal bipyramids that share corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one LiO4 tetrahedra, an edgeedge with one LiO5 trigonal bipyramid, and edges with two FeO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.97–2.21 Å. In the seventh Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share a cornercorner with one LiO4 tetrahedra, a cornercorner with one FeO5 trigonal bipyramid, corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one FeO5 trigonal bipyramid, and edges with two LiO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.96–2.40 Å. In the eighth Li site, Li is bonded to five O atoms to form distorted LiO5 trigonal bipyramids that share a cornercorner with one LiO4 tetrahedra, corners with two equivalent LiO5 trigonal bipyramids, an edgeedge with one LiO5 trigonal bipyramid, and edges with two FeO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 2.00–2.29 Å. In the ninth Li site, Li is bonded to four O atoms to form distorted LiO4 tetrahedra that share corners with two LiO5 trigonal bipyramids, corners with three FeO5 trigonal bipyramids, and edges with two LiO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.96–2.17 Å. There are four inequivalent Fe sites. In the first Fe site, Fe is bonded to five O atoms to form FeO5 trigonal bipyramids that share a cornercorner with one LiO5 trigonal bipyramid and edges with three LiO5 trigonal bipyramids. There are a spread of Fe–O bond distances ranging from 1.89–2.06 Å. In the second Fe site, Fe is bonded to five O atoms to form FeO5 trigonal bipyramids that share corners with two equivalent LiO4 tetrahedra, a cornercorner with one LiO5 trigonal bipyramid, and edges with three LiO5 trigonal bipyramids. There are a spread of Fe–O bond distances ranging from 1.94–2.03 Å. In the third Fe site, Fe is bonded to five O atoms to form FeO5 trigonal bipyramids that share a cornercorner with one LiO4 tetrahedra, a cornercorner with one LiO5 trigonal bipyramid, and edges with three LiO5 trigonal bipyramids. There are a spread of Fe–O bond distances ranging from 1.89–2.08 Å. In the fourth Fe site, Fe is bonded to five O atoms to form FeO5 trigonal bipyramids that share a cornercorner with one LiO5 trigonal bipyramid and edges with three LiO5 trigonal bipyramids. There are a spread of Fe–O bond distances ranging from 1.89–2.01 Å. There are eight inequivalent B sites. In the first B site, B is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.36 Å) and two longer (1.39 Å) B–O bond length. In the second B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.36–1.39 Å. In the third B site, B is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.36 Å) and two longer (1.39 Å) B–O bond length. In the fourth B site, B is bonded in a trigonal planar geometry to three O atoms. There is two shorter (1.39 Å) and one longer (1.40 Å) B–O bond length. In the fifth B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.37–1.39 Å. In the sixth B site, B is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.37 Å) and two longer (1.39 Å) B–O bond length. In the seventh B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.36–1.39 Å. In the eighth B site, B is bonded in a trigonal planar geometry to three O atoms. There are a spread of B–O bond distances ranging from 1.35–1.41 Å. There are twenty-four inequivalent O sites. In the first O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one B atom. In the second O site, O is bonded in a distorted rectangular see-saw-like geometry to two Li, one Fe, and one B atom. In the third O site, O is bonded in a rectangular see-saw-like geometry to three Li and one B atom. In the fourth O site, O is bonded in a distorted rectangular see-saw-like geometry to two Li, one Fe, and one B atom. In the fifth O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, one Fe, and one B atom. In the sixth O site, O is bonded in a 4-coordinate geometry to two Li, one Fe, and one B atom. In the seventh O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, one Fe, and one B atom. In the eighth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one B atom. In the ninth O site, O is bonded to two Li, one Fe, and one B atom to form distorted corner-sharing OLi2FeB tetrahedra. In the tenth O site, O is bonded in a rectangular see-saw-like geometry to three Li and one B atom. In the eleventh O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one B atom. In the twelfth O site, O is bonded in a distorted rectangular see-saw-like geometry to two Li, one Fe, and one B atom. In the thirteenth O site, O is bonded in a rectangular see-saw-like geometry to two Li, one Fe, and one B atom. In the fourteenth O site, O is bonded to two Li, one Fe, and one B atom to form distorted corner-sharing OLi2FeB tetrahedra. In the fifteenth O site, O is bonded in a rectangular see-saw-like geometry to three Li and one B atom. In the sixteenth O site, O is bonded in a 4-coordinate geometry to two Li, one Fe, and one B atom. In the seventeenth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one B atom. In the eighteenth O site, O is bonded in a distorted rectangular see-saw-like geometry to two Li, one Fe, and one B atom. In the nineteenth O site, O is bonded in a 3-coordinate geometry to one Li, one Fe, and one B atom. In the twentieth O site, O is bonded in a distorted trigonal non-coplanar geometry to one Li, one Fe, and one B atom. In the twenty-first O site, O is bonded in a 4-coordinate geometry to two Li, one Fe, and one B atom. In the twenty-second O site, O is bonded to four Li and one B atom to form distorted corner-sharing OLi4B trigonal bipyramids. In the twenty-third O site, O is bonded in a distorted rectangular see-saw-like geometry to two Li, one Fe, and one B atom. In the twenty-fourth O site, O is bonded in a distorted trigonal planar geometry to one Li, one Fe, and one B atom.