Materials Data on HgB(CN)4 by Materials Project

Abstract

BHg(CN)3CN crystallizes in the orthorhombic Pbcm space group. The structure is zero-dimensional and consists of eight boron molecules, eight hydrogen cyanide molecules, and eight Hg(CN)3 clusters. In each Hg(CN)3 cluster, Hg1+ is bonded in a 4-coordinate geometry to three N3- atoms. There are one shorter (2.39 Å) and two longer (2.40 Å) Hg–N bond lengths. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.16 Å. In the second C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.16 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a linear geometry to one Hg1+ and one C2+ atom. In the second N3- site, N3- is bonded in a distorted bent 150 degrees geometry to one Hg1+ and one C2+ atom.