Ni(HNCN)2 crystallizes in the orthorhombic Pnnm space group. Ni(1) is bonded to two equivalent N(2) and four equivalent N(1) atoms to form edge-sharing NiN6 octahedra. C(1) is bonded in a linear geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Ni(1), one C(1), and one H(1) atom. In the second N site, N(2) is bonded in a linear geometry to one Ni(1) and one C(1) atom. H(1) is bonded in a single-bond geometry to one N(1) atom.
Ni(HNCN)2 crystallizes in the orthorhombic Pnnm space group. Ni(1) is bonded to two equivalent N(2) and four equivalent N(1) atoms to form edge-sharing NiN6 octahedra. Both Ni(1)-N(2) bond lengths are 1.98 Å. All Ni(1)-N(1) bond lengths are 2.19 Å. C(1) is bonded in a linear geometry to one N(1) and one N(2) atom. The C(1)-N(1) bond length is 1.30 Å. The C(1)-N(2) bond length is 1.18 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Ni(1), one C(1), and one H(1) atom. The N(1)-H(1) bond length is 1.02 Å. In the second N site, N(2) is bonded in a linear geometry to one Ni(1) and one C(1) atom. H(1) is bonded in a single-bond geometry to one N(1) atom.