Materials Data on Ir(SeBr3)3 by Materials Project

Abstract

IrSe3Br7(Br)2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of four hydrobromic acid molecules and two IrSe3Br7 clusters. In each IrSe3Br7 cluster, Ir3+ is bonded in a distorted T-shaped geometry to three Se2- atoms. There are a spread of Ir–Se bond distances ranging from 2.40–2.44 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to one Ir3+ and two Br+0.33+ atoms. There are one shorter (2.38 Å) and one longer (2.40 Å) Se–Br bond lengths. In the second Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to one Ir3+ and two Br+0.33+ atoms. There are one shorter (2.38 Å) and one longer (2.42 Å) Se–Br bond lengths. In the third Se2- site, Se2- is bonded in a distorted trigonal non-coplanar geometry to one Ir3+ and three Br+0.33+ atoms. There are a spread of Se–Br bond distances ranging from 2.39–3.00 Å. There are seven inequivalent Br+0.33+ sites. In the first Br+0.33+ site, Br+0.33+ is bonded in a distorted single-bond geometry to one Se2- atom. In the second Br+0.33+ site, Br+0.33+ is bonded in a single-bond geometry to one Se2- atom. In the third Br+0.33+ site, Br+0.33+ is bonded in a single-bond geometry to one Se2- atom. In the fourth Br+0.33+ site, Br+0.33+ is bonded in a single-bond geometry to one Se2- atom. In the fifth Br+0.33+ site, Br+0.33+ is bonded in a single-bond geometry to one Se2- atom. In the sixth Br+0.33+ site, Br+0.33+ is bonded in a single-bond geometry to one Se2- atom. In the seventh Br+0.33+ site, Br+0.33+ is bonded in a single-bond geometry to one Se2- atom.