title: 2,2',5,5'-Tetra-chloro-N,N'-diethyl-N,N'-[benzene-1,3-diylbis(methyl-ene)]dibenzene-sulfonamide.
abstract: In the title compound, C(24)H(24)Cl(4)N(2)O(4)S(2), the dihedral angles between the central benzene ring and the pendant rings are 58.09 (10) and 62.59 (10)°. The dihedral angle between the pendant rings is 81.64 (9)°. Both sulfonamide groups lie to the same side of the central ring but the C-S-N-C torsion angles [73.09 (16) and -117.35 (14)] and S-N-C-C torsion angles [-143.80 (14) and -111.45 (16)°] differ significantly for the two pendant chains. The N atoms are close to planar (bond angle sums = 356.4 and 359.5°). In the crystal, weak C-H⋯O and C-H⋯Cl inter-actions link the mol-ecules.
authors.lastname: Ejaz
authors.forename: Islam Ullah
authors.initials: IU
authors.lastname: Khan
authors.forename: Tahir Ali
authors.initials: TA
authors.lastname: Sheikh
authors.forename: William T A
authors.initials: WT
authors.lastname: Harrison