5-(4-Bromo-2-nitrophenyl)-1,3,4-thiadiazol-2-amine

Abstract

The title compound, C8H5BrN4O2S, was synthesized by the reaction of 4-bromo-2-nitrobenzoic acid with thiosemicarbazide. The dihedral angle between the thiadiazole and benzene rings is 40.5 (2)°. In the crystal, the strongest N—H...N intermolecular hydrogen bond, between the amine group and one thiadiazole N atom, forms centrosymmetric dimers. The other amine H atom extends the supramolecular network, forming an N—H...N contact with the other thiadiazole N atom.