Materials Data on Tl2CO3 by Materials Project

Abstract

Tl2CO3 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Tl–O bond distances ranging from 2.70–2.87 Å. In the second Tl1+ site, Tl1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.68–3.54 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.31 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 five Tl1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Tl1+ and one C4+ atom.