Crystal structure of 4,6-diamino-2-sulfanylidene-1,2-dihydropyridine-3-carbonitrile

Abstract

The title compound, C6H6N4S, crystallizes with two independent molecules, A and B, in the asymmetric unit. Both independent molecules are almost planar [maximum deviations of 0.068 (6) angstrom in molecule A and 0.079 (6) angstrom in molecule B]. In the crystal, molecules A and B are linked by N-H center dot center dot center dot S, N-H center dot center dot center dot N and C-H center dot center dot center dot S hydrogen bonds, forming a three-dimensional network.