Crystal structures of (N-methyl-N-phenyl­amino)(N-methyl-N-phenyl­carbamoyl)sulfide and the corresponding disulfane

The title compounds, (N-methyl-N-phenyl­amino)(N-methyl-N-phenyl­car­bam­oyl)sulfide, C(15)H(16)N(2)OS, (I), and (N-methyl-N-phenyl­amino)­(N-methyl-N-phenyl­carbamo­yl)disulfane, C(15)H(16)N(2)OS(2), (II), are stable derivatives of (chloro­carbon­yl)sulfenyl chloride and (chloro­carbon­yl)disulfanyl chloride, respectively. The torsion angle about the S—S bond in (II) is −92.62 (6)°, which is close to the theoretical value of 90°. In the crystal of (II), non-classical inter­molecular C—H⋯O hydrogen bonds form centrosymmetric cyclic dimers [graph set R (2) (2)(10)], while inter-dimer C—H⋯S inter­actions generate chains extending along the b axis.