Materials Data on Cs2Ti(WO4)3 by Materials Project

Abstract

Cs2Ti(WO4)3 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Cs1+ is bonded to six O2- atoms to form distorted CsO6 octahedra that share corners with three equivalent TiO6 octahedra and corners with nine equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 69–74°. There are three shorter (3.21 Å) and three longer (3.35 Å) Cs–O bond lengths. Ti4+ is bonded to six equivalent O2- atoms to form TiO6 octahedra that share corners with six equivalent CsO6 octahedra and corners with six equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 37–69°. All Ti–O bond lengths are 1.97 Å. W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent TiO6 octahedra, corners with four equivalent WO6 octahedra, and corners with six equivalent CsO6 octahedra. The corner-sharing octahedra tilt angles range from 37–74°. There is two shorter (1.90 Å) and four longer (1.96 Å) W–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two equivalent W6+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Ti4+, and one W6+ atom.