organic compounds
2,4-Dichloro-N-(3,4-dimethylphenyl)benzenesulfonamide
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 C—SO2—NH—C torsion angle is −60.84 (18). The sulfonyl and the aniline benzene rings are tilted relative to each other by 66.4 (1)°. The features inversion-related dimers linked by pairs of N—H⋯O hydrogen bonds.
Related literature
For the preparation of the title compound, see: Savitha & Gowda (2006). For hydrogen-bonding modes of see: Adsmond & Grant (2001). For our studies on the effects of substituents on the structures and other aspects of N-(aryl)-amides, see: Arjunan et al. (2004); Gowda et al. (2000), on N-(aryl)-methanesulfonamides, see: Gowda et al. (2007) and on N-(aryl)-arylsulfonamides, see: Gelbrich et al. (2007); Perlovich et al. (2006); Gowda et al. (2005); Rodrigues et al. (2011).
Experimental
Crystal data
|
Refinement
|
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED; 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/S1600536811038256/bt5644sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811038256/bt5644Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811038256/bt5644Isup3.cml
The solution of 1,3-dichlorobenzene (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-dichlorobenzenesulfonylchloride was treated with 3,4-dimethylaniline 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-dichloro-N- (3,4-dimethylphenyl)-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).
Prism like light pink single crystals used in X-ray diffraction studies were grown in ethanolic solution by slow evaporation at room temperature.
The H atom of the NH group was located in a difference map and later restrained to N—H = 0.86 (2) %A. The other H atoms were positioned with idealized geometry using a riding model with the aromatic C—H = 0.93Å and methyl C—H = 0.96 Å. The isotropic displacement parameters of the H atoms were set to 1.2Ueq(C-aromatic, N) and 1.5Ueq(C-methyl).
Several biologically important compounds contain the sulfonamide moiety. The hydrogen bonding preferences of
have been investigated (Adsmond & Grant, 2001). As part of our studies on the substituent effects on the structures and other aspects of N-(aryl)-amides (Arjunan et al., 2004; Gowda et al., 2000), N-(aryl)-methanesulfonamides (Gowda et al., 2007) and N-(aryl)-arylsulfonamides (Gowda et al., 2005; Rodrigues et al., 2011), in the present work, the of 2,4-dichloro-N-(3,4-dimethylphenyl)-benzenesulfonamide (I) has been determined (Fig. 1).In (I), the N—H bond in the C—SO2—NH—C segment is syn to the meta-methyl group in the anilino benzene ring and orients itself towards the ortho-chloro group in the sulfonyl benzene ring. Further, the conformations of the N—C bonds in the C—SO2—NH—C segment have gauche torsions with respect to the S═O bonds.
The molecule is bent at the S atom with C—SO2—NH—C torsion angle of -60.84 (18), compared to the value of -71.38 (39)° in 2,4-dichloro-N-(2,4-dimethylphenyl)-benzenesulfonamide (II) (Rodrigues et al., 2011).
The sulfonyl and the aniline benzene rings are tilted relative to each other by 66.4 (1)°, compared to the value of 44.6 (1)° in (II)
The other bond parameters in (I) are similar to those observed in (II) and other aryl
(Perlovich et al., 2006; Gelbrich et al., 2007).In the
the pairs of intermolecular N–H···O hydrogen bonds (Table 1) link the molecules into inversion-related dimers. Part of the is shown in Fig. 2.For the preparation of the title compound, see: Savitha & Gowda (2006). For hydrogen-bonding modes of
see: Adsmond & Grant (2001). For our studies on the effects of substituents on the structures and other aspects of N-(aryl)-amides, see: Arjunan et al. (2004); Gowda et al. (2000), on N-(aryl)-methanesulfonamides, see: Gowda et al. (2007) and on N-(aryl)-arylsulfonamides, see: Gelbrich et al. (2007); Perlovich et al. (2006); Gowda et al. (2005); Rodrigues et al. (2011).Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell
CrysAlis RED (Oxford Diffraction, 2009); 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 (Sheldrick, 2008).C14H13Cl2NO2S | F(000) = 680 |
Mr = 330.21 | Dx = 1.416 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2657 reflections |
a = 7.8381 (6) Å | θ = 2.7–27.8° |
b = 14.778 (1) Å | µ = 0.55 mm−1 |
c = 13.660 (1) Å | T = 293 K |
β = 101.840 (9)° | Prism, light pink |
V = 1548.59 (19) Å3 | 0.46 × 0.44 × 0.32 mm |
Z = 4 |
Oxford Diffraction Xcalibur diffractometer with Sapphire CCD detector | 3155 independent reflections |
Radiation source: fine-focus sealed tube | 2447 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.011 |
Rotation method data acquisition using ω scans. | θmax = 26.4°, θmin = 2.7° |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | h = −9→9 |
Tmin = 0.785, Tmax = 0.843 | k = −14→18 |
6193 measured reflections | l = −17→16 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.105 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0533P)2 + 0.5615P] where P = (Fo2 + 2Fc2)/3 |
3155 reflections | (Δ/σ)max < 0.001 |
186 parameters | Δρmax = 0.36 e Å−3 |
1 restraint | Δρmin = −0.40 e Å−3 |
C14H13Cl2NO2S | V = 1548.59 (19) Å3 |
Mr = 330.21 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.8381 (6) Å | µ = 0.55 mm−1 |
b = 14.778 (1) Å | T = 293 K |
c = 13.660 (1) Å | 0.46 × 0.44 × 0.32 mm |
β = 101.840 (9)° |
Oxford Diffraction Xcalibur diffractometer with Sapphire CCD detector | 3155 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | 2447 reflections with I > 2σ(I) |
Tmin = 0.785, Tmax = 0.843 | Rint = 0.011 |
6193 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 1 restraint |
wR(F2) = 0.105 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.36 e Å−3 |
3155 reflections | Δρmin = −0.40 e Å−3 |
186 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 | ||
Cl1 | 0.34354 (8) | 0.43015 (5) | 0.08084 (5) | 0.0707 (2) | |
Cl2 | 0.60591 (10) | 0.20253 (6) | 0.37736 (7) | 0.0976 (3) | |
S1 | −0.05081 (6) | 0.38265 (3) | 0.10982 (4) | 0.04088 (15) | |
O1 | −0.04339 (19) | 0.37506 (10) | 0.00605 (10) | 0.0515 (4) | |
O2 | −0.19273 (18) | 0.34323 (11) | 0.14429 (12) | 0.0558 (4) | |
N1 | −0.0465 (2) | 0.48983 (12) | 0.13356 (12) | 0.0444 (4) | |
H1N | 0.010 (3) | 0.5191 (15) | 0.0985 (16) | 0.053* | |
C1 | 0.1397 (2) | 0.33428 (13) | 0.18378 (13) | 0.0372 (4) | |
C2 | 0.3069 (3) | 0.35329 (14) | 0.16991 (15) | 0.0451 (5) | |
C3 | 0.4500 (3) | 0.31241 (17) | 0.22924 (18) | 0.0579 (6) | |
H3 | 0.5617 | 0.3246 | 0.2195 | 0.069* | |
C4 | 0.4251 (3) | 0.25347 (16) | 0.30303 (17) | 0.0557 (6) | |
C5 | 0.2625 (3) | 0.23435 (15) | 0.31959 (16) | 0.0502 (5) | |
H5 | 0.2483 | 0.1949 | 0.3704 | 0.060* | |
C6 | 0.1197 (3) | 0.27492 (13) | 0.25921 (15) | 0.0433 (5) | |
H6 | 0.0084 | 0.2622 | 0.2694 | 0.052* | |
C7 | −0.0452 (3) | 0.52380 (13) | 0.23208 (14) | 0.0424 (4) | |
C8 | −0.1957 (3) | 0.52055 (16) | 0.26998 (17) | 0.0530 (5) | |
H8 | −0.2953 | 0.4936 | 0.2327 | 0.064* | |
C9 | −0.1994 (4) | 0.55708 (16) | 0.36325 (19) | 0.0631 (7) | |
C10 | −0.0514 (4) | 0.59808 (16) | 0.41788 (18) | 0.0655 (7) | |
C11 | 0.0974 (4) | 0.60113 (17) | 0.37911 (18) | 0.0648 (7) | |
H11 | 0.1966 | 0.6289 | 0.4158 | 0.078* | |
C12 | 0.1028 (3) | 0.56374 (15) | 0.28668 (17) | 0.0532 (5) | |
H12 | 0.2048 | 0.5656 | 0.2620 | 0.064* | |
C13 | −0.3662 (5) | 0.5535 (2) | 0.4015 (3) | 0.1035 (12) | |
H13A | −0.4509 | 0.5183 | 0.3566 | 0.124* | |
H13B | −0.4098 | 0.6138 | 0.4056 | 0.124* | |
H13C | −0.3442 | 0.5262 | 0.4666 | 0.124* | |
C14 | −0.0508 (6) | 0.6415 (2) | 0.5189 (2) | 0.1010 (12) | |
H14A | −0.0870 | 0.5978 | 0.5625 | 0.121* | |
H14B | −0.1297 | 0.6919 | 0.5102 | 0.121* | |
H14C | 0.0647 | 0.6622 | 0.5477 | 0.121* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0485 (3) | 0.0890 (5) | 0.0782 (4) | −0.0019 (3) | 0.0215 (3) | 0.0324 (4) |
Cl2 | 0.0711 (5) | 0.1047 (6) | 0.1041 (6) | 0.0292 (4) | −0.0126 (4) | 0.0312 (5) |
S1 | 0.0337 (3) | 0.0458 (3) | 0.0413 (3) | −0.0019 (2) | 0.00329 (19) | −0.0010 (2) |
O1 | 0.0539 (9) | 0.0573 (9) | 0.0392 (8) | −0.0029 (7) | 0.0001 (6) | −0.0048 (7) |
O2 | 0.0350 (8) | 0.0619 (10) | 0.0708 (10) | −0.0070 (7) | 0.0113 (7) | 0.0043 (8) |
N1 | 0.0491 (10) | 0.0431 (10) | 0.0424 (9) | 0.0035 (8) | 0.0125 (7) | 0.0046 (7) |
C1 | 0.0359 (9) | 0.0371 (10) | 0.0373 (10) | −0.0003 (8) | 0.0050 (7) | −0.0038 (8) |
C2 | 0.0386 (10) | 0.0484 (12) | 0.0489 (11) | 0.0012 (9) | 0.0105 (9) | 0.0046 (9) |
C3 | 0.0366 (11) | 0.0658 (15) | 0.0698 (15) | 0.0056 (10) | 0.0075 (10) | 0.0073 (12) |
C4 | 0.0505 (13) | 0.0530 (13) | 0.0573 (13) | 0.0127 (10) | −0.0037 (10) | 0.0027 (11) |
C5 | 0.0624 (14) | 0.0438 (12) | 0.0429 (11) | 0.0035 (10) | 0.0070 (10) | 0.0024 (9) |
C6 | 0.0468 (11) | 0.0412 (11) | 0.0428 (11) | −0.0043 (9) | 0.0110 (9) | −0.0029 (8) |
C7 | 0.0489 (11) | 0.0374 (10) | 0.0415 (10) | 0.0080 (9) | 0.0111 (9) | 0.0056 (8) |
C8 | 0.0531 (12) | 0.0522 (13) | 0.0566 (13) | 0.0066 (10) | 0.0175 (10) | 0.0058 (10) |
C9 | 0.0836 (18) | 0.0539 (14) | 0.0609 (14) | 0.0125 (13) | 0.0358 (14) | 0.0099 (12) |
C10 | 0.109 (2) | 0.0430 (13) | 0.0481 (13) | 0.0076 (13) | 0.0249 (14) | 0.0051 (10) |
C11 | 0.0867 (19) | 0.0515 (14) | 0.0520 (14) | −0.0050 (12) | 0.0047 (13) | −0.0016 (11) |
C12 | 0.0547 (13) | 0.0509 (13) | 0.0538 (13) | 0.0017 (10) | 0.0106 (10) | 0.0001 (10) |
C13 | 0.109 (3) | 0.117 (3) | 0.104 (2) | 0.014 (2) | 0.067 (2) | 0.005 (2) |
C14 | 0.187 (4) | 0.0650 (18) | 0.0592 (17) | 0.007 (2) | 0.045 (2) | −0.0059 (14) |
Cl1—C2 | 1.731 (2) | C7—C12 | 1.377 (3) |
Cl2—C4 | 1.736 (2) | C7—C8 | 1.382 (3) |
S1—O2 | 1.4190 (15) | C8—C9 | 1.390 (3) |
S1—O1 | 1.4349 (15) | C8—H8 | 0.9300 |
S1—N1 | 1.6157 (18) | C9—C10 | 1.384 (4) |
S1—C1 | 1.7724 (19) | C9—C13 | 1.505 (4) |
N1—C7 | 1.434 (2) | C10—C11 | 1.377 (4) |
N1—H1N | 0.834 (16) | C10—C14 | 1.521 (3) |
C1—C6 | 1.386 (3) | C11—C12 | 1.387 (3) |
C1—C2 | 1.391 (3) | C11—H11 | 0.9300 |
C2—C3 | 1.381 (3) | C12—H12 | 0.9300 |
C3—C4 | 1.376 (3) | C13—H13A | 0.9600 |
C3—H3 | 0.9300 | C13—H13B | 0.9600 |
C4—C5 | 1.369 (3) | C13—H13C | 0.9600 |
C5—C6 | 1.383 (3) | C14—H14A | 0.9600 |
C5—H5 | 0.9300 | C14—H14B | 0.9600 |
C6—H6 | 0.9300 | C14—H14C | 0.9600 |
O2—S1—O1 | 119.28 (9) | C8—C7—N1 | 119.79 (19) |
O2—S1—N1 | 108.75 (9) | C9—C8—C7 | 120.7 (2) |
O1—S1—N1 | 105.76 (9) | C9—C8—H8 | 119.7 |
O2—S1—C1 | 105.73 (9) | C7—C8—H8 | 119.7 |
O1—S1—C1 | 109.36 (9) | C10—C9—C8 | 119.4 (2) |
N1—S1—C1 | 107.48 (9) | C10—C9—C13 | 121.4 (3) |
C7—N1—S1 | 121.82 (14) | C8—C9—C13 | 119.2 (3) |
C7—N1—H1N | 117.0 (16) | C11—C10—C9 | 119.3 (2) |
S1—N1—H1N | 112.7 (16) | C11—C10—C14 | 119.4 (3) |
C6—C1—C2 | 118.84 (18) | C9—C10—C14 | 121.3 (3) |
C6—C1—S1 | 117.93 (15) | C10—C11—C12 | 121.6 (2) |
C2—C1—S1 | 123.23 (15) | C10—C11—H11 | 119.2 |
C3—C2—C1 | 120.41 (19) | C12—C11—H11 | 119.2 |
C3—C2—Cl1 | 117.90 (16) | C7—C12—C11 | 119.0 (2) |
C1—C2—Cl1 | 121.67 (15) | C7—C12—H12 | 120.5 |
C4—C3—C2 | 119.1 (2) | C11—C12—H12 | 120.5 |
C4—C3—H3 | 120.4 | C9—C13—H13A | 109.5 |
C2—C3—H3 | 120.4 | C9—C13—H13B | 109.5 |
C5—C4—C3 | 121.9 (2) | H13A—C13—H13B | 109.5 |
C5—C4—Cl2 | 119.33 (18) | C9—C13—H13C | 109.5 |
C3—C4—Cl2 | 118.78 (18) | H13A—C13—H13C | 109.5 |
C4—C5—C6 | 118.6 (2) | H13B—C13—H13C | 109.5 |
C4—C5—H5 | 120.7 | C10—C14—H14A | 109.5 |
C6—C5—H5 | 120.7 | C10—C14—H14B | 109.5 |
C1—C6—C5 | 121.09 (19) | H14A—C14—H14B | 109.5 |
C1—C6—H6 | 119.5 | C10—C14—H14C | 109.5 |
C5—C6—H6 | 119.5 | H14A—C14—H14C | 109.5 |
C12—C7—C8 | 120.1 (2) | H14B—C14—H14C | 109.5 |
C12—C7—N1 | 120.07 (19) | ||
O2—S1—N1—C7 | 53.19 (18) | C2—C1—C6—C5 | −0.5 (3) |
O1—S1—N1—C7 | −177.58 (15) | S1—C1—C6—C5 | 179.74 (15) |
C1—S1—N1—C7 | −60.84 (18) | C4—C5—C6—C1 | −0.5 (3) |
O2—S1—C1—C6 | −2.88 (18) | S1—N1—C7—C12 | 109.5 (2) |
O1—S1—C1—C6 | −132.49 (15) | S1—N1—C7—C8 | −73.8 (2) |
N1—S1—C1—C6 | 113.15 (16) | C12—C7—C8—C9 | −0.2 (3) |
O2—S1—C1—C2 | 177.36 (17) | N1—C7—C8—C9 | −176.85 (19) |
O1—S1—C1—C2 | 47.75 (19) | C7—C8—C9—C10 | 0.8 (3) |
N1—S1—C1—C2 | −66.61 (19) | C7—C8—C9—C13 | 179.1 (2) |
C6—C1—C2—C3 | 1.1 (3) | C8—C9—C10—C11 | −0.6 (4) |
S1—C1—C2—C3 | −179.13 (17) | C13—C9—C10—C11 | −178.9 (3) |
C6—C1—C2—Cl1 | −177.31 (15) | C8—C9—C10—C14 | 178.1 (2) |
S1—C1—C2—Cl1 | 2.4 (3) | C13—C9—C10—C14 | −0.1 (4) |
C1—C2—C3—C4 | −0.8 (4) | C9—C10—C11—C12 | −0.3 (4) |
Cl1—C2—C3—C4 | 177.71 (19) | C14—C10—C11—C12 | −179.0 (2) |
C2—C3—C4—C5 | −0.2 (4) | C8—C7—C12—C11 | −0.7 (3) |
C2—C3—C4—Cl2 | −179.91 (18) | N1—C7—C12—C11 | 175.98 (19) |
C3—C4—C5—C6 | 0.8 (3) | C10—C11—C12—C7 | 0.9 (3) |
Cl2—C4—C5—C6 | −179.48 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.83 (2) | 2.17 (2) | 2.945 (2) | 154 (2) |
Symmetry code: (i) −x, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C14H13Cl2NO2S |
Mr | 330.21 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 7.8381 (6), 14.778 (1), 13.660 (1) |
β (°) | 101.840 (9) |
V (Å3) | 1548.59 (19) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.55 |
Crystal size (mm) | 0.46 × 0.44 × 0.32 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer with Sapphire CCD detector |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.785, 0.843 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6193, 3155, 2447 |
Rint | 0.011 |
(sin θ/λ)max (Å−1) | 0.625 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.105, 1.03 |
No. of reflections | 3155 |
No. of parameters | 186 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.36, −0.40 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2009), CrysAlis RED (Oxford Diffraction, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.834 (16) | 2.171 (18) | 2.945 (2) | 154 (2) |
Symmetry code: (i) −x, −y+1, −z. |
Acknowledgements
VZR thanks the University Grants Commission, Government of India, New Delhi, for the award of an RFSMS fellowship.
References
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Several biologically important compounds contain the sulfonamide moiety. The hydrogen bonding preferences of sulfonamides have been investigated (Adsmond & Grant, 2001). As part of our studies on the substituent effects on the structures and other aspects of N-(aryl)-amides (Arjunan et al., 2004; Gowda et al., 2000), N-(aryl)-methanesulfonamides (Gowda et al., 2007) and N-(aryl)-arylsulfonamides (Gowda et al., 2005; Rodrigues et al., 2011), in the present work, the crystal structure of 2,4-dichloro-N-(3,4-dimethylphenyl)-benzenesulfonamide (I) has been determined (Fig. 1).
In (I), the N—H bond in the C—SO2—NH—C segment is syn to the meta-methyl group in the anilino benzene ring and orients itself towards the ortho-chloro group in the sulfonyl benzene ring. Further, the conformations of the N—C bonds in the C—SO2—NH—C segment have gauche torsions with respect to the S═O bonds.
The molecule is bent at the S atom with C—SO2—NH—C torsion angle of -60.84 (18), compared to the value of -71.38 (39)° in 2,4-dichloro-N-(2,4-dimethylphenyl)-benzenesulfonamide (II) (Rodrigues et al., 2011).
The sulfonyl and the aniline benzene rings are tilted relative to each other by 66.4 (1)°, compared to the value of 44.6 (1)° in (II)
The other bond parameters in (I) are similar to those observed in (II) and other aryl sulfonamides (Perlovich et al., 2006; Gelbrich et al., 2007).
In the crystal structure, the pairs of intermolecular N–H···O hydrogen bonds (Table 1) link the molecules into inversion-related dimers. Part of the crystal structure is shown in Fig. 2.