Acta Cryst. (2007). E63, m2369  [ doi:10.1107/S1600536807039888 ]

Bis(thiocyanato-N)tetrakis(1-vinyl-1H-imidazole-N³)nickel(II)

S.-J. Pang, J. Su and Q. Lin

Abstract: The title compound, [Ni(NCS)₂(C₅H₆N₂)₄], crystallizes with two independent half-molecules in the asymmetric unit; each Ni atom lies on a centre of symmetry. In both independent molecules, each Ni^II ion displays a compressed octahedral coordination geometry, with six N atoms from two thiocyanate anions and four 1-vinylimidazole ligands building the NiN₆ chromophore. In the crystal structure, - stacking interactions [centroid-to-centroid distance = 4.685 (3) Å] link the two independent molecules into a one-dimensional chain running along the a axis. Intermolecular C-HS hydrogen bonds further stabilize the crystal structure.

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