1-{2-[(E)-2-(2-Nitrophenyl)ethenyl]-1-phenylsulfonyl-1H-indol-3-yl}ethanone

In the title compound, C24H18N2O5S, the S atom has a distorted tetrahedral configuration, with bond angles varying from 105.11 (7) to 119.98 (8)degrees. As a result of the electronwithdrawing character of the phenylsulfonyl group, the NCsp(2) bond lengths [1.414 (2) and 1.413 (2) angstrom] are slightly longer than the reported value of 1.355 (14) angstrom for N atoms with a planar configuration. The indole moiety is essentially planar, with a maximum deviation of 0.0177 (14) angstrom for the N atom. The phenyl ring of the sulfonyl substituent makes a dihedral angle of 85.70 (7)degrees with the mean plane of the indole moiety. The molecular structure features intramolecular CH center dot center dot center dot O hydrogen bonds, which generate S(6) and S(12) ring motifs. In the crystal, adjacent molecules are linked via CH center dot center dot center dot O hydrogen bonds, forming infinite C(7) chains running along the a-axis direction. The crystal packing also features C-H center dot center dot center dot pi interactions, which form a three-dimensional structure.