Materials Data on H3I3N2 by Materials Project
N2H3I3 crystallizes in the monoclinic P2_1/m space group. The structure is one-dimensional and consists of one N2H3I3 ribbon oriented in the (0, 1, 0) direction. there are two inequivalent N sites. In the first N site, N is bonded to four I1- atoms to form corner-sharing NI4 tetrahedra. There are a spread of N–I bond distances ranging from 2.17–2.34 Å. In the second N site, N is bonded in a trigonal non-coplanar geometry to three H1+ and one I1- atom. All N–H bond lengths are 1.02 Å. The N–I bond length is 2.51 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N atom. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a single-bond geometry to one N atom. In the second I1- site, I1- is bonded in a linear geometry to two N atoms. In the third I1- site, I1- is bonded in a linear geometry to two equivalent N atoms.