In the title compound, C22H17NO3S, the sulfonyl-bound phenyl ring is almost orthogonal to the indole ring system, making a dihedral angle of 84.89 (7)°. The carbonyl-bound phenyl ring forms a dihedral angle of 57.32 (5)° with the indole ring system. The two phenyl rings are inclined at 52.68 (7)°. The S atom has a distorted tetrahedral configuration. In the crystal, weak C-H...O interactions link the molecules, forming a helical chain along the b-axis direction.
M. Umadevi, Saravanan, V., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “Crystal structure of [2-methyl-1-(phenylsulfonyl)-1H-indol-3-yl](phenyl) methanone”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, pp. 133–135, 2015.