Materials Data on LiTaWO6 by Materials Project
LiTaWO6 crystallizes in the tetragonal P4_122 space group. The structure is three-dimensional. Li1+ is bonded in a distorted L-shaped geometry to two equivalent O2- atoms. Both Li–O bond lengths are 1.96 Å. Ta5+ is bonded to six O2- atoms to form TaO6 octahedra that share corners with two equivalent TaO6 octahedra and corners with four equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 37–42°. There are a spread of Ta–O bond distances ranging from 1.93–2.04 Å. W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent WO6 octahedra and corners with four equivalent TaO6 octahedra. The corner-sharing octahedra tilt angles range from 35–42°. There are a spread of W–O bond distances ranging from 1.93–1.96 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Ta5+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W6+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Ta5+, and one W6+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ta5+ and one W6+ atom.