Bis[1-(4-cyanobenzyl)pyrazinium] bis(1,2-dicyanoethene-1,2-dithiolato)nickelate(II)

Abstract

The asymmetric unit of the title complex, (C12H10N3)2[Ni(C4N2S2)2], consists of one 1-(4-cyanobenzyl)pyrazinium cation and one half of an [Ni(mnt)2]2− dianion (mnt2− is 1,2-dicyanoethene-1,2-dithiolate). The Ni2+ ion is located on an inversion center and is coordinated by four S atoms from two mnt2− ligands, exhibiting a square-planar coordination geometry. The cation adopts a conformation where both the pyrazine ring and the benzene ring are twisted with respect to the C—C—N reference plane by 16.5 (2) and 69.8 (1)°, respectively.