Materials Data on Ca(Mo3S4)2 by Materials Project

Abstract

CaMo6S8 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Ca2+ is bonded in a body-centered cubic geometry to eight S2- atoms. There are two shorter (2.72 Å) and six longer (3.11 Å) Ca–S bond lengths. Mo+2.33+ is bonded to five S2- atoms to form a mixture of edge and corner-sharing MoS5 square pyramids. There are a spread of Mo–S bond distances ranging from 2.41–2.57 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 1-coordinate geometry to one Ca2+ and three equivalent Mo+2.33+ atoms. In the second S2- site, S2- is bonded in a 5-coordinate geometry to one Ca2+ and four equivalent Mo+2.33+ atoms.