Received 1 December 2011
aDepartment of Physics, Ranipettai Engineering College, Thenkadapathangal, Walaja 632 513, India,bDepartment of Physics, Thanthai Periyar Government Institute of Technology, Vellore 632 002, India, and cDepartment of Organic Chemistry, University of Madras, Maraimalai Campus, Chennai 600 025, India
Correspondence e-mail: email@example.com
In the title compound, C24H19ClN2O3S, the sulfonyl-bound benzene ring forms dihedral angles of 38.1 (2) and 81.2 (1)°, respectively, with the formyl benzene and benzene rings. The molecular conformation is stabilized by a weak intramolecular C-HO hydrogen bond, which generates an S(5) ring motif. The crystal packing is stabilized by C-HO hydrogen bonds, which generate C(7) zigzag chains along  and R33(19) ring motifs along . The crystal packing is further stabilized by C-Cl interactions [Clcentroid = 3.456 (2) Å and C-Clcentroid = 173.4 (2)°].
For background to the pharmacological uses of sulfonamides, see: Korolkovas (1988); Mandell & Sande (1992). For related structures, see: Ranjith et al. (2009); Aziz-ur-Rehman et al. (2010). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Data collection: APEX2 (Bruker, 2004); cell refinement: APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997; software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT5740 ).
The authors thank Dr Babu Vargheese, SAIF, IIT, Madras, India, for his help with the data collection.
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