3-(4-Chloro­benzene­sulfonamido)-5-methyl­cyclo­hex-2-en-1-one

For the title compound, C(13)H(14)ClNO(3)S, geometrical parameters, determined using X-ray diffraction techniques, are compared with those calculated by density functional theory (DFT), using hybrid exchange-correlation functional, B3LYP methods. The dihedral angle between the benzene ring and the conjugated part of the cyclo­hexene ring is 87.47 (5)°. The cyclo­hexene ring and its substituents are disordered over two conformations, with occupancies of 0.786 (3) and 0.214 (3). In the crystal, mol­ecules are linked into chains in the c-axis direction by inter­molecular N—H⋯O(C=O) hydrogen bonds. C—H⋯O inter­actions are also observed.