4-Phenyl-sulfon-yl-2-(p-tolyl-sulfon-yl)-1H,8H-pyrrolo-[2,3-b]indole

Abstract

The title compound, C23H18N2O 4S2, contains a pyrrolo group fused onto the plane of an indole ring with phenyl-sulfonyl and p-toluene-sulfonyl groups bonded to the indole and pyrrolo rings. The angles between the mean planes of the pyrrolo-indole ring and the phenyl-sulfonyl and p-toluene-sulfonyl rings are 73.7 (6) and 80.6 (0)°, respectively. The dihedral angle between the mean planes of the two benzene rings is 78.7 (4)°. In the crystal, both classical N - H⋯O and non-classical C - H⋯O inter-molecular hydrogen-bonding inter-actions are observed, as well as weak π-π inter-actions [centroid-centroid distances = 3.6258 (8) and 3.9298 (8) Å], which contribute to the stability of the packing.