Bis[1-(3-cyanobenzyl)pyridinium] bis(1,2-dicyanoethene-1,2-dithiolato)nickelate(II)

Abstract

In the ionic title complex, (C13H11N2)2[Ni(C4N2S2)2], the NiII ion is located on an inversion centre so the asymmetric unit contains one-half [Ni(mnt)2]2− dianion (mnt2− is maleonitriledithiolate) and one 1-(3-cyanobenzyl)pyridinium cation ([CNBzPy]+). The NiII ion in the [Ni(mnt)2]2− anion is coordinated by four S atoms of two mnt2− ligands, and exhibits square-planar coordination geometry. In the [CNBzPy]+ cation, the benzene and pyridine rings are twisted with respect to the C/C/N plane incorporating the methylene C atom that links them. The crystal structure is stabilized by Coulombic interactions.