Materials Data on Li4Sb(TeO4)3 by Materials Project

Abstract

Li4Sb(TeO4)3 crystallizes in the monoclinic P2 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 LiO4 tetrahedra that share corners with eight TeO6 octahedra. The corner-sharing octahedra tilt angles range from 49–68°. There are two shorter (1.95 Å) and two longer (2.16 Å) Li–O bond lengths. In the second Li site, Li is bonded in a distorted see-saw-like geometry to four O atoms. There are two shorter (2.04 Å) and two longer (2.21 Å) Li–O bond lengths. In the third Li site, Li is bonded in a 4-coordinate geometry to four O atoms. There are two shorter (1.95 Å) and two longer (2.24 Å) Li–O bond lengths. In the fourth Li site, Li is bonded to four O atoms to form distorted LiO4 trigonal pyramids that share corners with four equivalent SbO6 octahedra and corners with four TeO6 octahedra. The corner-sharing octahedra tilt angles range from 37–80°. There are two shorter (2.02 Å) and two longer (2.21 Å) Li–O bond lengths. Sb is bonded to six O atoms to form SbO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with four equivalent LiO4 trigonal pyramids, and edges with two equivalent TeO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Sb–O bond distances ranging from 1.99–2.09 Å. There are three inequivalent Te sites. In the first Te site, Te is bonded to six O atoms to form TeO6 octahedra that share corners with two equivalent SbO6 octahedra, corners with two equivalent LiO4 tetrahedra, corners with two equivalent LiO4 trigonal pyramids, and edges with two equivalent TeO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Te–O bond distances ranging from 2.00–2.22 Å. In the second Te site, Te is bonded to six O atoms to form TeO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with two equivalent LiO4 tetrahedra, corners with two equivalent LiO4 trigonal pyramids, and edges with two equivalent SbO6 octahedra. The corner-sharing octahedral tilt angles are 57°. There are a spread of Te–O bond distances ranging from 1.91–2.04 Å. In the third Te site, Te is bonded to six O atoms to form TeO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with four equivalent LiO4 tetrahedra, and edges with two equivalent TeO6 octahedra. The corner-sharing octahedral tilt angles are 57°. There are a spread of Te–O bond distances ranging from 2.03–2.46 Å. There are six inequivalent O sites. In the first O site, O is bonded to two Li, one Sb, and one Te atom to form distorted corner-sharing OLi2SbTe trigonal pyramids. In the second O site, O is bonded in a distorted trigonal planar geometry to one Li and two Te atoms. In the third O site, O is bonded in a 3-coordinate geometry to one Li, one Sb, and one Te atom. In the fourth O site, O is bonded in a distorted trigonal planar geometry to one Li and two Te atoms. In the fifth O site, O is bonded in a 3-coordinate geometry to one Li, one Sb, and one Te atom. In the sixth O site, O is bonded to two Li and two Te atoms to form distorted corner-sharing OLi2Te2 trigonal pyramids.