Received 17 November 2012
There are two independent molecules in the asymmetric unit of the title compound, C14H14N2O4S, in which the dihedral angles between the benzene rings are 56.22 (15) and 58.16 (14)°. In the crystal, N-HOnitro hydrogen bonds link the molecules into zigzag chains running along the a-axis direction.
For studies on the effects of substituents on the structures and other aspects of N-(aryl)-amides, see: Gowda & Weiss (1994); Shahwar et al. (2012), of N-arylsulfonamides, see: Chaithanya et al. (2012) and of N-chloroarylsulfonamides, see: Shetty & Gowda (2004). For hydrogen-bonding patterns and motifs, see: Adsmond & Grant (2001).
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell refinement: CrysAlis CCD; data reduction: CrysAlis RED (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT6865 ).
UC thanks Mangalore University for the award of a research fellowship. BTG thanks the University Grants Commission, Government of India, New Delhi, for a special grant under the UGC-BSR one-time grant to faculty.
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