Materials Data on Cr2H24(IN3)3 by Materials Project
Cr2(N3H8)3(I)3 crystallizes in the hexagonal P6_3/mmc space group. The structure is zero-dimensional and consists of six hydriodic acid molecules and two Cr2(N3H8)3 clusters. In each Cr2(N3H8)3 cluster, Cr3+ is bonded to six N3- atoms to form face-sharing CrN6 octahedra. There are three shorter (2.05 Å) and three longer (2.13 Å) Cr–N bond lengths. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Cr3+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. In the second N3- site, N3- is bonded in a distorted water-like geometry to two equivalent Cr3+ and two equivalent H1+ atoms. Both N–H bond lengths are 1.02 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.