Materials Data on Mo2SBr2 by Materials Project

Abstract

Mo2SBr2 crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two Mo2SBr2 sheets oriented in the (0, 1, 0) direction. there are two inequivalent Mo2+ sites. In the first Mo2+ site, Mo2+ is bonded to three S2- and two equivalent Br1- atoms to form a mixture of edge and corner-sharing MoS3Br2 square pyramids. There are a spread of Mo–S bond distances ranging from 2.44–2.57 Å. Both Mo–Br bond lengths are 2.64 Å. In the second Mo2+ site, Mo2+ is bonded to two S2- and three Br1- atoms to form a mixture of edge and corner-sharing MoS2Br3 square pyramids. There are one shorter (2.42 Å) and one longer (2.51 Å) Mo–S bond lengths. There are a spread of Mo–Br bond distances ranging from 2.64–2.69 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to four Mo2+ atoms. In the second S2- site, S2- is bonded in a 6-coordinate geometry to six Mo2+ atoms. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in an L-shaped geometry to two equivalent Mo2+ atoms. In the second Br1- site, Br1- is bonded in a 5-coordinate geometry to three Mo2+ atoms.