Publication

Abstract : 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 [010] chains. The chains are cross-linked by weak C - H⋯π interactions, forming a three-dimensional network. © 2015.