Acta Cryst. (2013). E69, m428 [ doi:10.1107/S1600536813015493 ]
Abstract: In the anion of the title compound, (C12H13N2)[Ni(C4N2S2)2], the NiII atom is coordinated by four S atoms from two 1,2-dicyanoethene-1,2-dithiolate (mnt) ligands in a suqare-planar geometry. Weak C-HN and C-HS hydrogen bonds between the 1-ethyl-4,4'-bipyridin-1-ium cations and mnt anions and weak - interactions between the pyridine rings of the cations [centroid-centroid distances = 3.808 (3) and 3.972 (3) Å] lead to a two-dimensional network parallel to (010).
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