In the title compound, C25H19FN2O5S, the substituted phenyl ring makes a dihedral angle of 12.26 (9)° with the indole ring system. The nitro group is twisted at an angle of 26.92 (8)° out of the plane of the ring to which it is attached. The molecular structure is stabilized by weak C-H...O hydrogen bonds. In the crystal, weak C-H...O, C-H...F and [pi]-[pi] [centroid-centroid distance = 3.6645 (11) Å] interactions link the molecules, forming a three-dimensional network.
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M. Umadevi, Saravanan, V., Dr. Yamuna R., Mohanakrishnan, A. K., and Chakkaravarthi, G., “(E)-1-[2-(4-Fluoro-2-nitrostyryl)-1-phenylsulfonyl-1H-indol-3-yl] propan-1-one”, Acta Crystallographica Section E: Structure Reports Online, vol. 69, pp. 1780–1780, 2013.