Crystal structure of 1,5-diethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-di­thione

In the title compound, C(13)H(16)N(2)S(2), the seven-membered ring adopts a boat conformation, with the two phenyl­ene C atoms representing the stern and the methyl­ene C atom as the prow. The thione S atoms and N-bound ethyl groups lie on the opposite side of the mol­ecule to the phenyl­ene ring so that the mol­ecule approximates mirror symmetry. In the crystal, supra­molecular layers in the bc plane are sustained by a pair of C—H⋯S inter­actions to the same S atom acceptor.