N-(2,6-Dimethylphenyl)-4-methylbenzenesulfonamide

In the title compound, C15H17NO2S, the molecule is bent at the S atom, the C—SO2—NH—C torsion angle being 88.0 (2)°. The dihedral angle between the two aromatic rings is 49.8 (1)°. In the crystal, molecules are linked into zigzag chains parallel to the a axis via N—H⋯O hydrogen bonds.

In the title compound, C 15 H 17 NO 2 S, the molecule is bent at the S atom, the C-SO 2 -NH-C torsion angle being 88.0 (2) . The dihedral angle between the two aromatic rings is 49.8 (1) . In the crystal, molecules are linked into zigzag chains parallel to the a axis via N-HÁ Á ÁO hydrogen bonds.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: VM2025).
In the crystal structure, the intermolecular N-H···O hydrogen bonds (Table 1) link the molecules into infinite zig-zag chains running parallel to the a-axis. Part of the crystal structure is shown in Fig. 2.
The latter was recrystallized to constant melting point (110 °C) from dilute ethanol. The purity of the compound was checked and characterized by recording its infrared and NMR spectra (Shetty & Gowda, 2005).
The prism like single crystals used in X-ray diffraction studies were grown in ethanolic solution by a slow evaporation at room temperature.

Refinement
The H atom of the NH group was located in a difference map and later restrained to N-H = 0.86 (1) Å. The other H atoms were positioned with idealized geometry using a riding model with C-H = 0.93-0.96 Å. All H atoms were refined with isotropic displacement parameters (set to 1.2 times of the U eq of the parent atom).   Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

N-(2,6-Dimethylphenyl)-4-methylbenzenesulfonamide
Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > σ(F 2 ) is used only for calculating Rfactors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.