phenylbenzenesulfonamide

R factor = 0.038; wR factor = 0.109; data-to-parameter ratio = 19.5. The whole molecule of the title compound, C20H19NO4S2, is generated by twofold rotational symmetry. The N atom is located on the twofold rotation axis and has a trigonal-planar geometry. It is bonded by two S atoms of two symmetry-related 4-methylphenylsulfonyl groups and by the C atom of the phenyl ring, which is bisected by the twofold rotation axis. The benzene and phenyl rings are oriented at a dihedral angle of 51.48 (5) while the pendant benzene rings are inclined to one another by 87.76 (9). In the crystal, weak C—H O hydrogen bonds link the molecules, forming a three-dimen-sional network. Related literature Several sulfonamide derivatives have been used as chemo-therapeutic agents for their antibacterial, antifungal, anti-tumor and hypoglycemic effects for many years, see: Chohan et al. (2010); El-Sayed et al. (2011); Seri et al. (2000). Some sulfonamide derivatives are reported to have carbonic anhy-drases (CA) inhibition properties, see: Suparan et al. (2000). For the use of disulfonamides for their antitumor activity and CA inhibitory properties, see: Boriack-Sjodin et al. (1998). For the use as catalysts in asymmetric syntheses of complexes obtained from disulfonamides chiral derivatives, see: Guo et al. (1997). For sulfonation of aniline by 4-tolylsulfonyl chloride utilizing standard procedures with small modifications, see: DeChristopher et al. (1974). For a related structure involving 4-methylphenylsulfonyl, see: Elgemeie et al. (2013). For bond-length data, see: Allen et al. (1987)