DOI: 10.17188/1684021
title: Materials Data on Li4Nb3Ni3(TeO8)2 by Materials Project

description: Li4Nb3Ni3(TeO8)2 is Hausmannite-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three equivalent TeO6 octahedra, corners with four NbO6 octahedra, and corners with five NiO6 octahedra. The corner-sharing octahedra tilt angles range from 52–65°. There are a spread of Li–O bond distances ranging from 1.99–2.05 Å. In the second Li1+ site, Li1+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.90–2.00 Å. In the third Li1+ site, Li1+ is bonded to four O2- atoms to form distorted LiO4 trigonal pyramids that share a cornercorner with one NiO6 octahedra, corners with two equivalent NbO6 octahedra, an edgeedge with one NbO6 octahedra, and edges with two equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 56–63°. There are a spread of Li–O bond distances ranging from 1.93–2.11 Å. In the fourth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four NiO6 octahedra and corners with five NbO6 octahedra. The corner-sharing octahedra tilt angles range from 45–60°. There are a spread of Li–O bond distances ranging from 2.00–2.11 Å. There are two inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, edges with two equivalent NbO6 octahedra, and edges with two equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 52–61°. There are a spread of Nb–O bond distances ranging from 1.89–2.23 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with three LiO4 tetrahedra, an edgeedge with one TeO6 octahedra, edges with four equivalent NiO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. There are a spread of Nb–O bond distances ranging from 1.91–2.28 Å. There are two inequivalent Ni+1.67+ sites. In the first Ni+1.67+ site, Ni+1.67+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, and edges with four equivalent NbO6 octahedra. The corner-sharing octahedral tilt angles are 52°. There are a spread of Ni–O bond distances ranging from 2.07–2.16 Å. In the second Ni+1.67+ site, Ni+1.67+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with three LiO4 tetrahedra, an edgeedge with one TeO6 octahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent NiO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. There are a spread of Ni–O bond distances ranging from 2.03–2.17 Å. There are two inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Te–O bond distances ranging from 1.97–2.64 Å. In the second Te4+ site, Te4+ is bonded to six O2- atoms to form distorted TeO6 octahedra that share corners with two equivalent NiO6 octahedra, corners with four equivalent NbO6 octahedra, corners with three equivalent LiO4 tetrahedra, an edgeedge with one NbO6 octahedra, and edges with two equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 52–61°. There are a spread of Te–O bond distances ranging from 1.98–2.54 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one Ni+1.67+, and one Te4+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two equivalent Nb5+, and one Te4+ atom. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, two equivalent Nb5+, and one Ni+1.67+ atom. In the fourth O2- site, O2- is bonded in a distorted tetrahedral geometry to one Li1+, two equivalent Nb5+, and one Ni+1.67+ atom. In the fifth O2- site, O2- is bonded to one Li1+, one Nb5+, and two equivalent Ni+1.67+ atoms to form corner-sharing OLiNbNi2 tetrahedra. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, one Nb5+, one Ni+1.67+, and one Te4+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two equivalent Nb5+, and one Te4+ atom. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, two equivalent Ni+1.67+, and one Te4+ atom. In the ninth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one Ni+1.67+, and one Te4+ atom. In the tenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, and two equivalent Ni+1.67+ atoms. In the eleventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one Ni+1.67+, and one Te4+ atom. In the twelfth O2- site, O2- is bonded to one Li1+, two equivalent Ni+1.67+, and one Te4+ atom to form corner-sharing OLiNi2Te tetrahedra.