Materials Data on Cs4CO4 by Materials Project

Abstract

Cs4CO4 is alpha Po structured and crystallizes in the trigonal R3 space group. The structure is zero-dimensional and consists of three Cs4CO4 clusters. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to three O2- atoms. There are a spread of Cs–O bond distances ranging from 2.75–2.85 Å. In the second Cs1+ site, Cs1+ is bonded in a 12-coordinate geometry to three equivalent O2- atoms. All Cs–O bond lengths are 2.80 Å. C4+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.44 Å) and one longer (1.45 Å) C–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to three Cs1+ and one C4+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to three equivalent Cs1+ and one C4+ atom.