N-(3,5-Dimethylphenyl)-2-nitrobenzene-sulfonamide

The asymmetric unit of the title compound, C14H14N2O4S, consists of two crystallographically independent molecules. The molecules are twisted at the S - N bonds with C - S - N - C torsion angles of 44.2 (3) and -49.3 (3)degrees. The dihedral angles between the benzene rings in the two molecules are 71.53 (7) and 72.11 (7)degrees. The amide H atoms exhibit bifurcated intra-and intermolecular hydrogen bonds; the intramolecular N-H center dot center dot center dot O(N) hydrogen bonds generate S(7) motifs. In the crystal, the independent molecules are separately connected through the intermolecular N-H center dot center dot center dot O(S) hydrogen bonds, generating a C(4) motif and a helical chain along the b axis for one molecule and an R-2(2)(8) motif and an inversion dimer for the other. The crystal studied was a pseudo-merohedral twin with twin law ((1) over bar 00/0 (1) over bar0/001), the refined ratio of the twin domains being 0.7876 (12):0.2124 (12).