In the title compound, C27H21NO4S, the dihedral angles between the carbazole ring
system (rms deviation= 0.015 Å) and the sulfur-bonded and directly linked benzene rings
are 79.98 (11) and 53.51 (18)°, respectively. The benzene rings subtend a dihedral angle of
48.4 (2)°. The ethyl side chain of the ester group has an extended conformation [C—O—C—
C=− 172.3 (3)°]. In the crystal, inversion dimers linked by pairs of weak C—H⋯ O hydrogen
bonds generate R22 (22) loops. The dimers are linked by weak C—H⋯ π and π–π
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Dr. Yamuna R., Chakkaravarthi, G., Mohanakrishnan, A. K., Raju, P., and Umadevi, M., “Crystal structure of ethyl 2-phenyl-9-phenylsulfonyl-9H-carbazole-3-carboxylate”, Acta Crystallographica Section E: Crystallographic Communications, vol. 71, no. 10, pp. o725-o726, 2015.