Materials Data on HgB2(CN)8 by Materials Project
(B)2Hg(CN)6(CN)2 crystallizes in the trigonal P-3m1 space group. The structure is zero-dimensional and consists of two boron molecules, two hydrogen cyanide molecules, and one Hg(CN)6 cluster. In the Hg(CN)6 cluster, Hg2+ is bonded in an octahedral geometry to six equivalent N3- atoms. All Hg–N bond lengths are 2.41 Å. C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.16 Å. N3- is bonded in a distorted linear geometry to one Hg2+ and one C2+ atom.
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