Bis[tris(1H-pyrazol-1-yl-κN2)methane]nickel(II) bis{[tris(1H-pyrazol-1-yl-κN2)methane]tris(thiocyanato-κN)nickelate(II)} methanol disolvate

Attempts to prepare the mononuclear [(tpm)(NiL3)-L-II](-1) [tpm = tris(1H-pyrazol-1-yl)methane and L = thiocyanate] anion yielded the methanol-solvated salt, [(tpm)(2)Ni-II][(tpm)Ni-II(NCS)(3)](2)center dot 2CH(3)OH or [Ni(C10H10N6)(2)][Ni(NCS)(3)(C10H10N6)](2)center dot 2CH(3)OH. The asymmetric unit consists of half a centrosymmetric bis[tris(1H-pyrazol-1-yl)methane]-nickel(II) cation and an octahedral nickelate(II) anion bound to one tpm and three L ligands, and a methanol solvent molecule. One of the L ligands is disordered over two positions with occupancy factors of 0.650 (3) and 0.350 (3). There are O-H center dot center dot center dot S interactions between the methanol and the disordered thiocyanate anion, and a weak C-H center dot center dot center dot O hydrogen bond between the cation and the methanol O atom.