Materials Data on Cs4Sr3(PO3)12 by Materials Project
Cs4Sr3(PO3)12 crystallizes in the cubic I-43d space group. The structure is three-dimensional. Cs is bonded in a 6-coordinate geometry to six O atoms. There are three shorter (3.20 Å) and three longer (3.33 Å) Cs–O bond lengths. Sr is bonded in a 8-coordinate geometry to eight O atoms. There are four shorter (2.59 Å) and four longer (2.71 Å) Sr–O bond lengths. P is bonded to four O atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.50–1.63 Å. There are three inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one Cs, one Sr, and one P atom. In the second O site, O is bonded in a bent 120 degrees geometry to two equivalent P atoms. In the third O site, O is bonded in a distorted single-bond geometry to one Cs, one Sr, and one P atom.