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Materials Data on CuB(CN)4 by Materials Project

BCu(CN)4 is Tetraauricupride structured and crystallizes in the cubic P-43m space group. The structure is zero-dimensional and consists of one boron molecule and one Cu(CN)4 cluster. In the Cu(CN)4 cluster, Cu1+ is bonded in a tetrahedral geometry to four equivalent N3- atoms. All Cu–N bond lengths are 1.95 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 linear geometry to one Cu1+ and one C2+ atom.

36 MATERIALS SCIENCE↗

Materials Data on CuB2(CN)8 by Materials Project

(B)2Cu(CN)6(CN)2 crystallizes in the monoclinic C2/m space group. The structure is zero-dimensional and consists of four boron molecules, four hydrogen cyanide molecules, and two Cu(CN)6 clusters. In each Cu(CN)6 cluster, Cu2+ is bonded in an octahedral geometry to six N3- atoms. There are four shorter (1.98 Å) and two longer (2.45 Å) Cu–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 distorted bent 150 degrees geometry to one Cu2+ and one C2+ atom. In the second N3- site, N3- is bonded in a linear geometry to one Cu2+ and one C2+ atom.

36 MATERIALS SCIENCE↗