ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.66, 2010 (SCI-Expanded)
In the title compound, C20H16N4O2S2, one of the thiophene rings is disordered [occupancy ratio 0.710 (4): 0.290 (4)] and the disorder is of the flip type. An intramolecular C-H center dot center dot center dot O hydrogen bond generates a six-membered ring with an S(6) motif.