Materials Data on Rb2CO3 by Materials Project
Rb2CO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded to six O2- atoms to form face-sharing RbO6 octahedra. There are a spread of Rb–O bond distances ranging from 2.82–3.02 Å. In the second Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Rb–O bond distances ranging from 3.01–3.27 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.30 Å) and two longer (1.31 Å) C–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five Rb1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to four Rb1+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to five Rb1+ and one C4+ atom.