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Acta Cryst. (2012). E68, m67  [ doi:10.1107/S1600536811053827 ]

Hexakis(dimethyl sulfoxide-[kappa]O)nickel(II) bis(2,2-dicyanoethene-1,1-dithiolato-[kappa]2S,S')nickelate(II)

M. Niu, S. Fan and G. Liu

Abstract: The reaction of NiCl2·6H2O with sodium 2,2-dicyanoethene-1,1-dithiolate [Na2(i-mnt)] in dimethyl sulfoxide produces the title complex, [Ni(C2H6OS)6][Ni(C4N2S2)2]. There is half each of an [Ni(C2H6OS)6]2- complex anion and an [Ni{(CH3)2SO}6]2+ complex cation in the asymmetric unit. The i-mnt ligand coordinates in a bidentate manner to the Ni atom in the anion through the two chelating S atoms in an approximate square-planar geometry. The Ni atom in the complex cation has an octahedral coordination environment with six dimethyl sulfoxide molecules as ligands.

Online 21 December 2011

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