Materials Data on Rb4CO4 by Materials Project

Abstract

Rb4CO4 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Rb–O bond distances ranging from 2.62–3.34 Å. In the second Rb1+ site, Rb1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Rb–O bond distances ranging from 2.69–3.06 Å. C4+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.43 Å) and two longer (1.46 Å) C–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to four Rb1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to five Rb1+ and one C4+ atom.