In the title compound, C21H17BrN2O4S2, the indole ring system subtends dihedral angles of 85.96(13) and 9.62(16)° with the planes of the N- and C-bonded benzene rings, respectively. The dihedral angles between the benzene rings is 88.05(17)°. The molecular conformation is stabilized by intramolecular N - H⋯O and C - H⋯O hydrogen bonds and an aromatic π-π stacking [centroid-to-centroid distance = 3.503(2)Å] interaction. In the crystal, short Br⋯O [2.9888(18)Å] contacts link the molecules into  chains. The chains are cross-linked by weak C - H⋯π interactions, forming a three-dimensional network. © 2015.
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U. M., P., R., Dr. Yamuna R., A.K., M., and G., C., “Crystal structure of N-[3-bromo-1-(phenylsulfonyl)-1H-indol-2-yl]methylbenzenesulfonamide”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. o756-o757, 2015.