Bis[1,2-bis-(4- tert-butyl-phen-yl)ethyl-ene-1,2-di-thiol-ato(1-)]nickel(II) pentane 0.25-solvate

The title compound, [Ni(C₂₂H₂₆S₂)₂], 1, is a square-planar D _2h -symmetric compound that occurs on a general position in non-centrosymmetric tetra-gonal P4₁2₁2 (No. 92) with ¼ eq of n-pentane (C₅H₁₂) as co-crystallite. Intra-ligand bond lengths show the di-thiol-ene ligands to be in their half-oxidized radical monoanionic form. Inter-molecular ^t Bu-C-H⋯arene_centroid and ^t Bu-C-H⋯NiS₂C_{2 centroid} close contacts guide the packing arrangement for 1.