Materials Data on Cs(TeO3)2 by Materials Project
Cs(TeO3)2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Cs is bonded to six O atoms to form CsO6 octahedra that share corners with twelve TeO6 octahedra. The corner-sharing octahedra tilt angles range from 64–72°. There are three shorter (3.22 Å) and three longer (3.24 Å) Cs–O bond lengths. There are two inequivalent Te sites. In the first Te site, Te is bonded to six O atoms to form TeO6 octahedra that share corners with six equivalent CsO6 octahedra and corners with six TeO6 octahedra. The corner-sharing octahedra tilt angles range from 42–69°. There is two shorter (1.94 Å) and four longer (1.99 Å) Te–O bond length. In the second Te site, Te is bonded to six equivalent O atoms to form TeO6 octahedra that share corners with six equivalent CsO6 octahedra and corners with six equivalent TeO6 octahedra. The corner-sharing octahedra tilt angles range from 44–72°. All Te–O bond lengths are 2.11 Å. There are two inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Cs and two equivalent Te atoms. In the second O site, O is bonded in a 2-coordinate geometry to one Cs and two Te atoms.