Materials Data on LiNb(TeO4)3 by Materials Project

Abstract

LiNb(TeO4)3 crystallizes in the monoclinic P2 space group. The structure is three-dimensional. Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six TeO6 octahedra, an edgeedge with one NbO6 octahedra, and edges with two equivalent TeO6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are a spread of Li–O bond distances ranging from 2.11–2.23 Å. Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent TeO6 octahedra, an edgeedge with one LiO6 octahedra, and edges with two equivalent TeO6 octahedra. The corner-sharing octahedral tilt angles are 39°. There are a spread of Nb–O bond distances ranging from 1.95–2.15 Å. There are three inequivalent Te6+ sites. In the first Te6+ site, Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with two equivalent LiO6 octahedra, corners with two equivalent NbO6 octahedra, and edges with two equivalent TeO6 octahedra. The corner-sharing octahedra tilt angles range from 39–57°. There are a spread of Te–O bond distances ranging from 1.91–2.03 Å. In the second Te6+ site, Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with two equivalent TeO6 octahedra, edges with two equivalent LiO6 octahedra, and edges with two equivalent NbO6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of Te–O bond distances ranging from 1.91–2.04 Å. In the third Te6+ site, Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with two equivalent TeO6 octahedra, corners with four equivalent LiO6 octahedra, and edges with two equivalent TeO6 octahedra. The corner-sharing octahedra tilt angles range from 45–53°. There are a spread of Te–O bond distances ranging from 1.95–2.00 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Nb5+ and one Te6+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Te6+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Li1+, one Nb5+, and one Te6+ atom. In the fourth O2- site, O2- is bonded in a water-like geometry to two Te6+ atoms. In the fifth O2- site, O2- is bonded in a water-like geometry to one Nb5+ and one Te6+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Te6+ atoms.