Abstract
The molecule of the title compound, C8H6N2OS2, has a V shape with two five-membered rings attached to a methylene C atom. All non-H atoms are approximately coplanar (r.m.s. deviation = 0.096 angstrom). In the crystal, molecules are linked by N-H center dot center dot center dot O hydrogen bonds into layers. The thiophene ring is disordered over two positions; the major orientation has an occupancy of 0.683 (3). is there an intramolecular N-H center dot center dot center dot S bond?