Materials Data on Cs3SbSe3 by Materials Project
Cs3SbSe3 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are three inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six equivalent Se2- atoms. There are three shorter (3.63 Å) and three longer (3.83 Å) Cs–Se bond lengths. In the second Cs1+ site, Cs1+ is bonded to six equivalent Se2- atoms to form a mixture of corner, edge, and face-sharing CsSe6 octahedra. The corner-sharing octahedra tilt angles range from 32–64°. There are three shorter (3.91 Å) and three longer (4.15 Å) Cs–Se bond lengths. In the third Cs1+ site, Cs1+ is bonded to six equivalent Se2- atoms to form a mixture of distorted corner, edge, and face-sharing CsSe6 octahedra. The corner-sharing octahedra tilt angles range from 32–41°. There are three shorter (3.65 Å) and three longer (3.77 Å) Cs–Se bond lengths. Sb3+ is bonded in a trigonal non-coplanar geometry to three equivalent Se2- atoms. All Sb–Se bond lengths are 2.60 Å. Se2- is bonded in a 7-coordinate geometry to six Cs1+ and one Sb3+ atom.