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

Abstract

Attempts to prepare the mononuclear [(tpm)NiIIL3]−1 [tpm = tris(1H-pyrazol-1-yl)methane and L = thiocyanate] anion yielded the methanol-solvated salt, [(tpm)2NiII][(tpm)NiII(NCS)3]2·2CH3OH or [Ni(C10H10N6)2][Ni(NCS)3(C10H10N6)]2·2CH3OH. 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...S interactions between the methanol and the disordered thiocyanate anion, and a weak C—H...O hydrogen bond between the cation and the methanol O atom.