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metal-organic compounds
The X-ray analysis of the title compound, [C16H36N]2[Ni(C3S4.67Se0.33)2], reveals that the anion contains 4,5-dimercapto-1,3-dithiole-2-thionato and 4,5-dimercapto-1,3-dithiole2-selonato ligands in the ratio 2:1. The anion as a whole is planar and the central Ni atom has a square-planar coordination environment. The disorder in the tetrabutylammonium cation has been modelled to give acceptable geometric parameters.