Crystal structure of 1,5-diethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-di-thione.

In the title compound, C13H16N2S2, the seven-membered ring adopts a boat conformation, with the two phenyl-ene C atoms representing the stern and the methyl-ene C atom as the prow. The thione S atoms and N-bound ethyl groups lie on the opposite side of the mol-ecule to the phenyl-ene ring so that the mol-ecule approximates mirror symmetry. In the crystal, supra-molecular layers in the bc plane are sustained by a pair of C-H⋯S inter-actions to the same S atom acceptor.