Materials Data on MoBr2 by Materials Project
MoBr2 crystallizes in the orthorhombic Cmce space group. The structure is two-dimensional and consists of two MoBr2 sheets oriented in the (0, 1, 0) direction. there are two inequivalent Mo2+ sites. In the first Mo2+ site, Mo2+ is bonded to five Br1- atoms to form a mixture of edge and corner-sharing MoBr5 square pyramids. There are a spread of Mo–Br bond distances ranging from 2.62–2.70 Å. In the second Mo2+ site, Mo2+ is bonded to five Br1- atoms to form edge-sharing MoBr5 square pyramids. There are one shorter (2.58 Å) and four longer (2.63 Å) Mo–Br bond lengths. There are four inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 11-coordinate geometry to three Mo2+ atoms. In the second Br1- site, Br1- is bonded in a 12-coordinate geometry to three Mo2+ atoms. In the third Br1- site, Br1- is bonded in a distorted bent 150 degrees geometry to two equivalent Mo2+ atoms. In the fourth Br1- site, Br1- is bonded in a single-bond geometry to one Mo2+ atom.