2,5-Diaminothiophene-3,4-dicarbonitrile

Abstract

In the title compound, C6H4N4S, the planar mol­ecule lies across a crystallographic mirror plane. In the crystal, the mol­ecules form centrosymmetric dimers through cyclic amino N—H⋯N hydrogen-bonding associations with cyano N-atom acceptors [graph set R 2 2(12)] and these dimers are extended through amine–cyano N—H⋯N associations into a three-dimensional network.