Materials Data on ReC4IO4 by Materials Project
ReI(CO)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of thirty-two formaldehyde molecules and four ReI clusters. In each ReI cluster, there are two inequivalent Re3+ sites. In the first Re3+ site, Re3+ is bonded in a 2-coordinate geometry to two I1- atoms. There are one shorter (2.87 Å) and one longer (2.88 Å) Re–I bond lengths. In the second Re3+ site, Re3+ is bonded in a 2-coordinate geometry to two I1- atoms. There are one shorter (2.86 Å) and one longer (2.87 Å) Re–I bond lengths. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a 2-coordinate geometry to two Re3+ atoms. In the second I1- site, I1- is bonded in a distorted water-like geometry to two Re3+ atoms.