Materials Data on H2CN2 by Materials Project
N(CN)2NH4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four ammonium molecules and four cyanamide, cyano- molecules.
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Materials Data on H2CN2 by Materials Project
CN2H2 crystallizes in the orthorhombic Pbca space group. The structure is zero-dimensional and consists of eight cyanamide molecules. C4+ is bonded in a linear geometry to two N3- atoms. There is one shorter (1.18 Å) and one longer (1.31 Å) C–N bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a single-bond geometry to one C4+ atom. In the second N3- site, N3- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.03 Å. There are two 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.
36 MATERIALS SCIENCE↗