organic compounds
N-(2,4-Dichlorophenyl)-2,4-dimethylbenzenesulfonamide
aDepartment of Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore, India, and bInstitute of Materials Science, Darmstadt University of Technology, Petersenstrasse 23, D-64287 Darmstadt, Germany
*Correspondence e-mail: gowdabt@yahoo.com
In the title compound, C14H13Cl2NO2S, the molecule is bent at the S atom with an C—SO2—NH—C torsion angle of −69.9 (2)°. The dihedral angle between the sulfonyl and aniline benzene rings is 44.0 (1)°. The features inversion dimers linked by pairs of N—H⋯O hydrogen bonds. An intramolecular N—H⋯Cl hydrogen bond is also observed.
Related literature
For the preparation of the compound, see: Savitha & Gowda (2006). For our study of the effect of substituents on the structures of N-(aryl)arylsulfonamides, see: Gowda et al. (2009); Nirmala et al. (2010a,b). For related structures, see: Gelbrich et al. (2007); Perlovich et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: CAD-4-PC (Enraf–Nonius, 1996); cell CAD-4-PC; data reduction: REDU4 (Stoe & Cie, 1987); 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.
Supporting information
https://doi.org/10.1107/S1600536810045563/bq2251sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810045563/bq2251Isup2.hkl
The solution of 1,3-xylene (1,3-dimethylbenzene) (10 ml) in chloroform (40 ml) was treated dropwise with chlorosulfonic acid (25 ml) at 0 ° C. After the initial evolution of hydrogen chloride subsided, the reaction mixture was brought to room temperature and poured into crushed ice in a beaker. The chloroform layer was separated, washed with cold water and allowed to evaporate slowly. The residual 2,4-dimethylbenzenesulfonylchloride was treated with 2,4-dichloroaniline in the stoichiometric ratio and boiled for ten minutes. The reaction mixture was then cooled to room temperature and added to ice cold water (100 ml). The resultant solid 2,4-dimethyl-N-(2,4-dichlorophenyl)benzenesulfonamide was filtered under suction and washed thoroughly with cold water. It was then recrystallized to constant melting point from dilute ethanol. The purity of the compound was checked and characterized by recording its infrared and NMR spectra (Savitha & Gowda, 2006).
The plate like colorless single crystals used in X-ray diffraction studies were grown in ethanolic solution by a slow evaporation at room temperature.
The H atoms of the NH groups were located in a difference map and later restrained to N—H = 0.86 (2) 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 Ueq of the parent atom).
In the present work, as part of a study of the substituent effects on the structures of N-(aryl)arylsulfonamides (Gowda et al., 2009; Nirmala et al., 2010a,b), the structure of 2,4-dimethyl-N-(2,4-dichlorophenyl)benzenesulfonamide (I) has been determined (Fig. 1). The molecule is bent at the N atom with the C1—SO2—NH—C7 torsion angle of -69.9 (2)°, compared to the values of 46.1 (3)° (glide image of molecule 1) and 47.7 (3)° (molecule 2) in the two independent molecules of 2,4-dimethyl-N-(phenyl)benzenesulfonamide (II) (Gowda et al., 2009), -54.9 (3)° in 2,4-dimethyl-N-(3,5-dichlorophenyl)benzenesulfonamide (III) (Nirmala et al., 2010b) and 66.5 (2)° in 2,4-dimethyl-N-(2,4-dimethylphenyl)-benzenesulfonamide (IV) (Nirmala et al., 2010a)
The two benzene rings in (I) are tilted relative to each other by 44.0 (1)°, compared to the values of 67.5 (1)° (molecule 1) and 72.9 (1)° (molecule 2) in the two independent molecules of(II), 82.3 (1)° in (III) and 41.0 (1)° in (IV). The other bond parameters in (I) are similar to those observed in (II), (III), (IV) and other aryl
(Perlovich et al., 2006; Gelbrich et al., 2007).The structure shows simultaneous N—H···Cl intramolecular and N—H···O intermolecular H-bonding (Table 1). The crystal packing of molecules in (I) via N—H···O(S) hydrogen bonds is shown in Fig.2.
For the preparation of the compound, see: Savitha & Gowda (2006). For our study of the effect of substituents on the structures of N-(aryl)arylsulfonamides, see: Gowda et al. (2009); Nirmala et al. (2010a,b). For related structures, see: Gelbrich et al. (2007); Perlovich et al. (2006).
Data collection: CAD-4-PC (Enraf–Nonius, 1996); cell
CAD-4-PC (Enraf–Nonius, 1996); data reduction: REDU4 (Stoe & Cie, 1987); 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 (Sheldrick, 2008).C14H13Cl2NO2S | Z = 2 |
Mr = 330.21 | F(000) = 340 |
Triclinic, P1 | Dx = 1.483 Mg m−3 |
Hall symbol: -P 1 | Cu Kα radiation, λ = 1.54180 Å |
a = 8.2407 (9) Å | Cell parameters from 25 reflections |
b = 8.3418 (9) Å | θ = 6.7–18.3° |
c = 10.849 (1) Å | µ = 5.27 mm−1 |
α = 84.59 (1)° | T = 293 K |
β = 89.06 (1)° | Plate, colorless |
γ = 85.07 (1)° | 0.45 × 0.40 × 0.13 mm |
V = 739.69 (13) Å3 |
Ennraf–Nonius CAD-4 diffractometer | 2496 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.033 |
Graphite monochromator | θmax = 66.9°, θmin = 4.1° |
ω/2θ scans | h = −9→9 |
Absorption correction: ψ scan (North et al., 1968) | k = −9→9 |
Tmin = 0.200, Tmax = 0.547 | l = −12→12 |
5173 measured reflections | 3 standard reflections every 120 min |
2629 independent reflections | intensity decay: 1.0% |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.056 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.159 | w = 1/[σ2(Fo2) + (0.1122P)2 + 0.3056P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max = 0.003 |
2629 reflections | Δρmax = 0.41 e Å−3 |
187 parameters | Δρmin = −0.80 e Å−3 |
1 restraint | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0131 (18) |
C14H13Cl2NO2S | γ = 85.07 (1)° |
Mr = 330.21 | V = 739.69 (13) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.2407 (9) Å | Cu Kα radiation |
b = 8.3418 (9) Å | µ = 5.27 mm−1 |
c = 10.849 (1) Å | T = 293 K |
α = 84.59 (1)° | 0.45 × 0.40 × 0.13 mm |
β = 89.06 (1)° |
Ennraf–Nonius CAD-4 diffractometer | 2496 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.033 |
Tmin = 0.200, Tmax = 0.547 | 3 standard reflections every 120 min |
5173 measured reflections | intensity decay: 1.0% |
2629 independent reflections |
R[F2 > 2σ(F2)] = 0.056 | 1 restraint |
wR(F2) = 0.159 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.41 e Å−3 |
2629 reflections | Δρmin = −0.80 e Å−3 |
187 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.0771 (3) | 0.4275 (3) | 0.2785 (2) | 0.0417 (5) | |
C2 | 0.1504 (3) | 0.3433 (3) | 0.3839 (2) | 0.0494 (6) | |
C3 | 0.0454 (4) | 0.2704 (4) | 0.4696 (3) | 0.0593 (7) | |
H3 | 0.0903 | 0.2133 | 0.5405 | 0.071* | |
C4 | −0.1211 (4) | 0.2779 (4) | 0.4556 (3) | 0.0586 (7) | |
C5 | −0.1883 (4) | 0.3659 (4) | 0.3526 (3) | 0.0571 (7) | |
H5 | −0.3007 | 0.3764 | 0.3428 | 0.069* | |
C6 | −0.0905 (3) | 0.4382 (3) | 0.2642 (2) | 0.0497 (6) | |
H6 | −0.1372 | 0.4952 | 0.1939 | 0.060* | |
C7 | 0.3576 (3) | 0.2472 (3) | 0.0982 (2) | 0.0385 (5) | |
C8 | 0.3155 (3) | 0.0907 (3) | 0.1315 (2) | 0.0394 (5) | |
C9 | 0.4329 (3) | −0.0337 (3) | 0.1657 (2) | 0.0440 (6) | |
H9 | 0.4039 | −0.1381 | 0.1872 | 0.053* | |
C10 | 0.5934 (3) | 0.0004 (3) | 0.1671 (2) | 0.0448 (6) | |
C11 | 0.6398 (3) | 0.1535 (3) | 0.1328 (2) | 0.0496 (6) | |
H11 | 0.7490 | 0.1741 | 0.1331 | 0.060* | |
C12 | 0.5214 (3) | 0.2753 (3) | 0.0980 (2) | 0.0459 (6) | |
H12 | 0.5516 | 0.3785 | 0.0739 | 0.055* | |
C13 | 0.3296 (4) | 0.3251 (5) | 0.4112 (3) | 0.0705 (9) | |
H13A | 0.3685 | 0.4300 | 0.4134 | 0.085* | |
H13B | 0.3869 | 0.2698 | 0.3477 | 0.085* | |
H13C | 0.3478 | 0.2639 | 0.4899 | 0.085* | |
C14 | −0.2268 (5) | 0.1923 (5) | 0.5518 (4) | 0.0833 (11) | |
H14A | −0.1703 | 0.1745 | 0.6292 | 0.100* | |
H14B | −0.2503 | 0.0904 | 0.5250 | 0.100* | |
H14C | −0.3268 | 0.2579 | 0.5621 | 0.100* | |
N1 | 0.2394 (3) | 0.3750 (2) | 0.06051 (18) | 0.0425 (5) | |
H1N | 0.156 (3) | 0.347 (4) | 0.026 (3) | 0.051* | |
O1 | 0.3348 (2) | 0.5697 (2) | 0.1953 (2) | 0.0564 (5) | |
O2 | 0.0776 (3) | 0.6299 (2) | 0.08078 (18) | 0.0559 (5) | |
Cl1 | 0.11490 (8) | 0.04794 (8) | 0.12875 (7) | 0.0581 (3) | |
Cl2 | 0.74198 (9) | −0.15459 (9) | 0.20963 (7) | 0.0672 (3) | |
S1 | 0.18758 (7) | 0.51721 (7) | 0.15244 (5) | 0.0428 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0409 (12) | 0.0415 (13) | 0.0434 (12) | −0.0039 (9) | 0.0029 (10) | −0.0073 (10) |
C2 | 0.0487 (15) | 0.0545 (16) | 0.0446 (13) | 0.0003 (11) | −0.0017 (11) | −0.0077 (11) |
C3 | 0.0670 (18) | 0.0663 (18) | 0.0424 (13) | 0.0009 (14) | −0.0003 (12) | 0.0003 (12) |
C4 | 0.0614 (17) | 0.0637 (18) | 0.0516 (15) | −0.0101 (14) | 0.0112 (13) | −0.0078 (13) |
C5 | 0.0440 (14) | 0.0716 (19) | 0.0575 (15) | −0.0091 (13) | 0.0056 (12) | −0.0119 (13) |
C6 | 0.0450 (14) | 0.0559 (15) | 0.0475 (13) | −0.0012 (11) | −0.0019 (10) | −0.0034 (11) |
C7 | 0.0397 (12) | 0.0382 (12) | 0.0374 (11) | −0.0034 (9) | 0.0025 (9) | −0.0027 (9) |
C8 | 0.0398 (12) | 0.0406 (13) | 0.0384 (11) | −0.0086 (9) | 0.0006 (9) | −0.0029 (9) |
C9 | 0.0503 (14) | 0.0380 (12) | 0.0429 (12) | −0.0041 (10) | −0.0009 (10) | 0.0008 (9) |
C10 | 0.0440 (13) | 0.0455 (13) | 0.0439 (12) | 0.0053 (10) | −0.0032 (10) | −0.0071 (10) |
C11 | 0.0381 (13) | 0.0524 (15) | 0.0599 (15) | −0.0058 (11) | 0.0026 (11) | −0.0122 (12) |
C12 | 0.0413 (13) | 0.0404 (13) | 0.0568 (14) | −0.0082 (10) | 0.0079 (10) | −0.0058 (10) |
C13 | 0.0512 (17) | 0.097 (3) | 0.0608 (17) | 0.0054 (16) | −0.0101 (13) | −0.0045 (16) |
C14 | 0.084 (3) | 0.092 (3) | 0.073 (2) | −0.018 (2) | 0.0244 (19) | 0.0047 (19) |
N1 | 0.0435 (11) | 0.0382 (11) | 0.0450 (11) | −0.0008 (8) | 0.0010 (8) | −0.0015 (8) |
O1 | 0.0508 (11) | 0.0462 (11) | 0.0749 (12) | −0.0120 (8) | 0.0031 (9) | −0.0134 (9) |
O2 | 0.0590 (12) | 0.0403 (10) | 0.0646 (11) | 0.0061 (8) | 0.0026 (9) | 0.0059 (8) |
Cl1 | 0.0405 (4) | 0.0519 (4) | 0.0825 (5) | −0.0131 (3) | −0.0042 (3) | −0.0001 (3) |
Cl2 | 0.0586 (5) | 0.0630 (5) | 0.0758 (5) | 0.0180 (3) | −0.0144 (4) | −0.0036 (4) |
S1 | 0.0434 (4) | 0.0333 (4) | 0.0512 (4) | −0.0023 (2) | 0.0033 (3) | −0.0024 (3) |
C1—C6 | 1.387 (4) | C9—C10 | 1.378 (4) |
C1—C2 | 1.402 (4) | C9—H9 | 0.9300 |
C1—S1 | 1.773 (2) | C10—C11 | 1.381 (4) |
C2—C3 | 1.393 (4) | C10—Cl2 | 1.737 (2) |
C2—C13 | 1.502 (4) | C11—C12 | 1.377 (4) |
C3—C4 | 1.378 (5) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | C12—H12 | 0.9300 |
C4—C5 | 1.374 (4) | C13—H13A | 0.9600 |
C4—C14 | 1.515 (4) | C13—H13B | 0.9600 |
C5—C6 | 1.372 (4) | C13—H13C | 0.9600 |
C5—H5 | 0.9300 | C14—H14A | 0.9600 |
C6—H6 | 0.9300 | C14—H14B | 0.9600 |
C7—C12 | 1.389 (3) | C14—H14C | 0.9600 |
C7—C8 | 1.393 (3) | N1—S1 | 1.645 (2) |
C7—N1 | 1.416 (3) | N1—H1N | 0.853 (18) |
C8—C9 | 1.384 (3) | O1—S1 | 1.424 (2) |
C8—Cl1 | 1.722 (2) | O2—S1 | 1.4311 (19) |
C6—C1—C2 | 120.8 (2) | C11—C10—Cl2 | 119.1 (2) |
C6—C1—S1 | 115.43 (19) | C12—C11—C10 | 118.7 (2) |
C2—C1—S1 | 123.7 (2) | C12—C11—H11 | 120.6 |
C3—C2—C1 | 115.9 (3) | C10—C11—H11 | 120.6 |
C3—C2—C13 | 118.1 (3) | C11—C12—C7 | 121.4 (2) |
C1—C2—C13 | 125.9 (3) | C11—C12—H12 | 119.3 |
C4—C3—C2 | 123.9 (3) | C7—C12—H12 | 119.3 |
C4—C3—H3 | 118.1 | C2—C13—H13A | 109.5 |
C2—C3—H3 | 118.1 | C2—C13—H13B | 109.5 |
C5—C4—C3 | 118.2 (3) | H13A—C13—H13B | 109.5 |
C5—C4—C14 | 121.1 (3) | C2—C13—H13C | 109.5 |
C3—C4—C14 | 120.7 (3) | H13A—C13—H13C | 109.5 |
C6—C5—C4 | 120.4 (3) | H13B—C13—H13C | 109.5 |
C6—C5—H5 | 119.8 | C4—C14—H14A | 109.5 |
C4—C5—H5 | 119.8 | C4—C14—H14B | 109.5 |
C5—C6—C1 | 120.8 (3) | H14A—C14—H14B | 109.5 |
C5—C6—H6 | 119.6 | C4—C14—H14C | 109.5 |
C1—C6—H6 | 119.6 | H14A—C14—H14C | 109.5 |
C12—C7—C8 | 118.3 (2) | H14B—C14—H14C | 109.5 |
C12—C7—N1 | 119.8 (2) | C7—N1—S1 | 120.33 (16) |
C8—C7—N1 | 121.9 (2) | C7—N1—H1N | 115 (2) |
C9—C8—C7 | 121.2 (2) | S1—N1—H1N | 110 (2) |
C9—C8—Cl1 | 118.61 (18) | O1—S1—O2 | 119.34 (13) |
C7—C8—Cl1 | 120.21 (19) | O1—S1—N1 | 106.94 (12) |
C10—C9—C8 | 118.6 (2) | O2—S1—N1 | 104.56 (11) |
C10—C9—H9 | 120.7 | O1—S1—C1 | 110.04 (12) |
C8—C9—H9 | 120.7 | O2—S1—C1 | 108.11 (12) |
C9—C10—C11 | 121.8 (2) | N1—S1—C1 | 107.11 (11) |
C9—C10—Cl2 | 119.1 (2) | ||
C6—C1—C2—C3 | 1.3 (4) | C8—C9—C10—C11 | −1.5 (4) |
S1—C1—C2—C3 | −175.4 (2) | C8—C9—C10—Cl2 | −179.91 (18) |
C6—C1—C2—C13 | −179.0 (3) | C9—C10—C11—C12 | 1.0 (4) |
S1—C1—C2—C13 | 4.4 (4) | Cl2—C10—C11—C12 | 179.3 (2) |
C1—C2—C3—C4 | −0.2 (4) | C10—C11—C12—C7 | 0.7 (4) |
C13—C2—C3—C4 | −180.0 (3) | C8—C7—C12—C11 | −1.7 (4) |
C2—C3—C4—C5 | −1.8 (5) | N1—C7—C12—C11 | −179.3 (2) |
C2—C3—C4—C14 | 178.7 (3) | C12—C7—N1—S1 | −74.9 (3) |
C3—C4—C5—C6 | 2.6 (5) | C8—C7—N1—S1 | 107.6 (2) |
C14—C4—C5—C6 | −177.8 (3) | C7—N1—S1—O1 | 48.1 (2) |
C4—C5—C6—C1 | −1.6 (4) | C7—N1—S1—O2 | 175.56 (18) |
C2—C1—C6—C5 | −0.4 (4) | C7—N1—S1—C1 | −69.8 (2) |
S1—C1—C6—C5 | 176.5 (2) | C6—C1—S1—O1 | 151.8 (2) |
C12—C7—C8—C9 | 1.1 (4) | C2—C1—S1—O1 | −31.4 (3) |
N1—C7—C8—C9 | 178.6 (2) | C6—C1—S1—O2 | 19.9 (2) |
C12—C7—C8—Cl1 | −178.02 (18) | C2—C1—S1—O2 | −163.3 (2) |
N1—C7—C8—Cl1 | −0.5 (3) | C6—C1—S1—N1 | −92.3 (2) |
C7—C8—C9—C10 | 0.5 (4) | C2—C1—S1—N1 | 84.5 (2) |
Cl1—C8—C9—C10 | 179.62 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O2i | 0.85 (2) | 2.24 (2) | 3.056 (3) | 159 (3) |
N1—H1N···Cl1 | 0.85 (2) | 2.68 (3) | 3.020 (2) | 105 (2) |
Symmetry code: (i) −x, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C14H13Cl2NO2S |
Mr | 330.21 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 8.2407 (9), 8.3418 (9), 10.849 (1) |
α, β, γ (°) | 84.59 (1), 89.06 (1), 85.07 (1) |
V (Å3) | 739.69 (13) |
Z | 2 |
Radiation type | Cu Kα |
µ (mm−1) | 5.27 |
Crystal size (mm) | 0.45 × 0.40 × 0.13 |
Data collection | |
Diffractometer | Ennraf–Nonius CAD-4 |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.200, 0.547 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5173, 2629, 2496 |
Rint | 0.033 |
(sin θ/λ)max (Å−1) | 0.597 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.159, 1.05 |
No. of reflections | 2629 |
No. of parameters | 187 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.41, −0.80 |
Computer programs: CAD-4-PC (Enraf–Nonius, 1996), REDU4 (Stoe & Cie, 1987), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O2i | 0.853 (18) | 2.24 (2) | 3.056 (3) | 159 (3) |
N1—H1N···Cl1 | 0.853 (18) | 2.68 (3) | 3.020 (2) | 105 (2) |
Symmetry code: (i) −x, −y+1, −z. |
References
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In the present work, as part of a study of the substituent effects on the structures of N-(aryl)arylsulfonamides (Gowda et al., 2009; Nirmala et al., 2010a,b), the structure of 2,4-dimethyl-N-(2,4-dichlorophenyl)benzenesulfonamide (I) has been determined (Fig. 1). The molecule is bent at the N atom with the C1—SO2—NH—C7 torsion angle of -69.9 (2)°, compared to the values of 46.1 (3)° (glide image of molecule 1) and 47.7 (3)° (molecule 2) in the two independent molecules of 2,4-dimethyl-N-(phenyl)benzenesulfonamide (II) (Gowda et al., 2009), -54.9 (3)° in 2,4-dimethyl-N-(3,5-dichlorophenyl)benzenesulfonamide (III) (Nirmala et al., 2010b) and 66.5 (2)° in 2,4-dimethyl-N-(2,4-dimethylphenyl)-benzenesulfonamide (IV) (Nirmala et al., 2010a)
The two benzene rings in (I) are tilted relative to each other by 44.0 (1)°, compared to the values of 67.5 (1)° (molecule 1) and 72.9 (1)° (molecule 2) in the two independent molecules of(II), 82.3 (1)° in (III) and 41.0 (1)° in (IV). The other bond parameters in (I) are similar to those observed in (II), (III), (IV) and other aryl sulfonamides (Perlovich et al., 2006; Gelbrich et al., 2007).
The structure shows simultaneous N—H···Cl intramolecular and N—H···O intermolecular H-bonding (Table 1). The crystal packing of molecules in (I) via N—H···O(S) hydrogen bonds is shown in Fig.2.