organic compounds
4-Chloro-N-(2,3-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, C14H14ClNO2S, the two aromatic rings are tilted relative to each other by 34.7 (1)°. In the crystal, the molecules form zigzag chains along the c axis via intermolecular N—H⋯O hydrogen bonds.
Related literature
For hydrogen bonding modes of ). For our study of the effect of substituents on the structures of N-(aryl)-amides, see: Gowda et al. (2004); on the structures of N-(aryl)arylsulfonamides, see: Gowda et al. (2009); Shakuntala et al. (2011) and on the structures of N-(aryl)methanesulfonamides, see: Gowda et al. (2007).
see; Adsmond & Grant (2001Experimental
Crystal data
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Refinement
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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
10.1107/S1600536811016321/bt5537sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811016321/bt5537Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811016321/bt5537Isup3.cml
The solution of chlorobenzene (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 4-chlorobenzenesulfonylchloride was treated with 2,3-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 4-chloro-N-(2,3-dimethylphenyl)-benzenesulfonamide was filtered under suction and washed thoroughly with cold water. It was then recrystallized to constant melting point from dilute ethanol. The compound was characterized by recording its infrared and NMR spectra.
Needle like colorless single crystals used in X-ray diffraction studies were grown in ethanolic solution by slow evaporation at room temperature.
The H atoms were positioned with idealized geometry using a riding model with N—H = 0.86 Å, the aromatic C—H = 0.93 Å, the methyl C—H = 0.96 Å, and were refined with isotropic displacement parameters set to 1.2 times of the Ueq of the parent atom.
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).C14H14ClNO2S | F(000) = 616 |
Mr = 295.77 | Dx = 1.380 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 1658 reflections |
a = 4.9926 (6) Å | θ = 3.2–27.9° |
b = 22.296 (3) Å | µ = 0.41 mm−1 |
c = 12.793 (2) Å | T = 293 K |
β = 90.11 (1)° | Needle, colourless |
V = 1424.1 (3) Å3 | 0.40 × 0.12 × 0.10 mm |
Z = 4 |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2669 independent reflections |
Radiation source: fine-focus sealed tube | 1882 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.021 |
Rotation method data acquisition using ω and ϕ scans | θmax = 25.7°, θmin = 3.2° |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | h = −4→6 |
Tmin = 0.853, Tmax = 0.960 | k = −27→26 |
5341 measured reflections | l = −13→15 |
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)] = 0.055 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0284P)2 + 1.6874P] where P = (Fo2 + 2Fc2)/3 |
2669 reflections | (Δ/σ)max = 0.001 |
172 parameters | Δρmax = 0.47 e Å−3 |
0 restraints | Δρmin = −0.40 e Å−3 |
C14H14ClNO2S | V = 1424.1 (3) Å3 |
Mr = 295.77 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 4.9926 (6) Å | µ = 0.41 mm−1 |
b = 22.296 (3) Å | T = 293 K |
c = 12.793 (2) Å | 0.40 × 0.12 × 0.10 mm |
β = 90.11 (1)° |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2669 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | 1882 reflections with I > 2σ(I) |
Tmin = 0.853, Tmax = 0.960 | Rint = 0.021 |
5341 measured reflections |
R[F2 > 2σ(F2)] = 0.055 | 0 restraints |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.47 e Å−3 |
2669 reflections | Δρmin = −0.40 e Å−3 |
172 parameters |
Experimental. CrysAlis RED (Oxford Diffraction, 2009) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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 | −0.0055 (6) | 0.22651 (14) | 0.3463 (2) | 0.0406 (7) | |
C2 | 0.1101 (6) | 0.21646 (17) | 0.2488 (3) | 0.0536 (9) | |
H2 | 0.2466 | 0.2413 | 0.2249 | 0.064* | |
C3 | 0.0209 (7) | 0.16946 (18) | 0.1881 (3) | 0.0573 (9) | |
H3 | 0.0973 | 0.1623 | 0.1230 | 0.069* | |
C4 | −0.1806 (7) | 0.13352 (15) | 0.2240 (3) | 0.0516 (9) | |
C5 | −0.2940 (7) | 0.14244 (16) | 0.3206 (3) | 0.0544 (9) | |
H5 | −0.4285 | 0.1170 | 0.3443 | 0.065* | |
C6 | −0.2071 (6) | 0.18932 (15) | 0.3820 (3) | 0.0490 (8) | |
H6 | −0.2837 | 0.1959 | 0.4472 | 0.059* | |
C7 | −0.0479 (6) | 0.37146 (15) | 0.2783 (2) | 0.0426 (8) | |
C8 | 0.1300 (6) | 0.41952 (15) | 0.2693 (2) | 0.0425 (7) | |
C9 | 0.1703 (6) | 0.44421 (16) | 0.1699 (3) | 0.0487 (8) | |
C10 | 0.0308 (8) | 0.42138 (18) | 0.0854 (3) | 0.0612 (10) | |
H10 | 0.0579 | 0.4379 | 0.0195 | 0.073* | |
C11 | −0.1469 (8) | 0.37484 (19) | 0.0965 (3) | 0.0656 (11) | |
H11 | −0.2390 | 0.3603 | 0.0386 | 0.079* | |
C12 | −0.1889 (7) | 0.34977 (17) | 0.1933 (3) | 0.0565 (9) | |
H12 | −0.3108 | 0.3186 | 0.2014 | 0.068* | |
C13 | 0.2732 (7) | 0.44507 (16) | 0.3628 (3) | 0.0551 (9) | |
H13A | 0.2268 | 0.4866 | 0.3706 | 0.066* | |
H13B | 0.4631 | 0.4414 | 0.3531 | 0.066* | |
H13C | 0.2211 | 0.4234 | 0.4244 | 0.066* | |
C14 | 0.3601 (8) | 0.49621 (18) | 0.1552 (3) | 0.0665 (11) | |
H14A | 0.5360 | 0.4849 | 0.1783 | 0.080* | |
H14B | 0.2988 | 0.5299 | 0.1953 | 0.080* | |
H14C | 0.3663 | 0.5069 | 0.0825 | 0.080* | |
N1 | −0.0959 (5) | 0.34539 (12) | 0.3801 (2) | 0.0448 (7) | |
H1N | −0.2211 | 0.3596 | 0.4190 | 0.054* | |
O1 | 0.0057 (5) | 0.27818 (11) | 0.52703 (17) | 0.0567 (6) | |
O2 | 0.3577 (4) | 0.30355 (11) | 0.3984 (2) | 0.0584 (7) | |
Cl1 | −0.2989 (3) | 0.07532 (5) | 0.14708 (8) | 0.0827 (4) | |
S1 | 0.08490 (15) | 0.28949 (4) | 0.42182 (7) | 0.0439 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0330 (16) | 0.0457 (19) | 0.0432 (18) | 0.0034 (14) | 0.0016 (13) | 0.0061 (15) |
C2 | 0.0417 (18) | 0.066 (2) | 0.053 (2) | −0.0004 (18) | 0.0105 (16) | 0.0081 (19) |
C3 | 0.060 (2) | 0.069 (3) | 0.042 (2) | 0.011 (2) | 0.0078 (17) | −0.0032 (19) |
C4 | 0.064 (2) | 0.046 (2) | 0.045 (2) | 0.0038 (18) | −0.0099 (17) | 0.0026 (16) |
C5 | 0.062 (2) | 0.047 (2) | 0.054 (2) | −0.0121 (18) | 0.0005 (17) | 0.0084 (17) |
C6 | 0.0497 (19) | 0.052 (2) | 0.0452 (19) | −0.0055 (16) | 0.0075 (15) | 0.0031 (16) |
C7 | 0.0295 (16) | 0.0493 (19) | 0.0491 (19) | 0.0046 (14) | 0.0004 (14) | −0.0009 (16) |
C8 | 0.0359 (17) | 0.0448 (18) | 0.0467 (19) | 0.0048 (15) | 0.0003 (14) | −0.0028 (15) |
C9 | 0.0467 (19) | 0.050 (2) | 0.049 (2) | 0.0086 (16) | 0.0074 (16) | 0.0002 (16) |
C10 | 0.071 (2) | 0.069 (3) | 0.044 (2) | 0.014 (2) | 0.0033 (18) | 0.0010 (19) |
C11 | 0.064 (2) | 0.076 (3) | 0.057 (2) | 0.008 (2) | −0.0156 (19) | −0.014 (2) |
C12 | 0.044 (2) | 0.058 (2) | 0.067 (2) | −0.0031 (17) | −0.0097 (17) | −0.010 (2) |
C13 | 0.060 (2) | 0.049 (2) | 0.057 (2) | −0.0072 (17) | −0.0039 (17) | −0.0010 (18) |
C14 | 0.071 (3) | 0.065 (3) | 0.063 (2) | 0.000 (2) | 0.011 (2) | 0.013 (2) |
N1 | 0.0317 (13) | 0.0481 (16) | 0.0547 (17) | 0.0026 (12) | 0.0102 (12) | 0.0003 (13) |
O1 | 0.0572 (14) | 0.0675 (16) | 0.0453 (13) | −0.0098 (12) | −0.0013 (11) | 0.0002 (12) |
O2 | 0.0251 (11) | 0.0680 (16) | 0.0821 (18) | −0.0066 (11) | −0.0027 (11) | 0.0055 (14) |
Cl1 | 0.1197 (10) | 0.0646 (7) | 0.0637 (7) | −0.0041 (6) | −0.0174 (6) | −0.0123 (5) |
S1 | 0.0286 (4) | 0.0523 (5) | 0.0510 (5) | −0.0050 (4) | 0.0002 (3) | 0.0027 (4) |
C1—C6 | 1.382 (4) | C9—C10 | 1.382 (5) |
C1—C2 | 1.393 (4) | C9—C14 | 1.509 (5) |
C1—S1 | 1.763 (3) | C10—C11 | 1.373 (5) |
C2—C3 | 1.378 (5) | C10—H10 | 0.9300 |
C2—H2 | 0.9300 | C11—C12 | 1.374 (5) |
C3—C4 | 1.366 (5) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | C12—H12 | 0.9300 |
C4—C5 | 1.375 (5) | C13—H13A | 0.9600 |
C4—Cl1 | 1.732 (3) | C13—H13B | 0.9600 |
C5—C6 | 1.377 (5) | C13—H13C | 0.9600 |
C5—H5 | 0.9300 | C14—H14A | 0.9600 |
C6—H6 | 0.9300 | C14—H14B | 0.9600 |
C7—C12 | 1.382 (4) | C14—H14C | 0.9600 |
C7—C8 | 1.397 (4) | N1—S1 | 1.628 (3) |
C7—N1 | 1.447 (4) | N1—H1N | 0.8600 |
C8—C9 | 1.401 (4) | O1—S1 | 1.426 (2) |
C8—C13 | 1.505 (4) | O2—S1 | 1.430 (2) |
C6—C1—C2 | 120.1 (3) | C9—C10—H10 | 119.3 |
C6—C1—S1 | 118.9 (2) | C10—C11—C12 | 120.1 (4) |
C2—C1—S1 | 120.8 (3) | C10—C11—H11 | 120.0 |
C3—C2—C1 | 119.5 (3) | C12—C11—H11 | 120.0 |
C3—C2—H2 | 120.2 | C11—C12—C7 | 119.2 (3) |
C1—C2—H2 | 120.2 | C11—C12—H12 | 120.4 |
C4—C3—C2 | 119.6 (3) | C7—C12—H12 | 120.4 |
C4—C3—H3 | 120.2 | C8—C13—H13A | 109.5 |
C2—C3—H3 | 120.2 | C8—C13—H13B | 109.5 |
C3—C4—C5 | 121.5 (3) | H13A—C13—H13B | 109.5 |
C3—C4—Cl1 | 119.9 (3) | C8—C13—H13C | 109.5 |
C5—C4—Cl1 | 118.6 (3) | H13A—C13—H13C | 109.5 |
C4—C5—C6 | 119.5 (3) | H13B—C13—H13C | 109.5 |
C4—C5—H5 | 120.2 | C9—C14—H14A | 109.5 |
C6—C5—H5 | 120.2 | C9—C14—H14B | 109.5 |
C5—C6—C1 | 119.7 (3) | H14A—C14—H14B | 109.5 |
C5—C6—H6 | 120.1 | C9—C14—H14C | 109.5 |
C1—C6—H6 | 120.1 | H14A—C14—H14C | 109.5 |
C12—C7—C8 | 121.8 (3) | H14B—C14—H14C | 109.5 |
C12—C7—N1 | 118.9 (3) | C7—N1—S1 | 120.7 (2) |
C8—C7—N1 | 119.3 (3) | C7—N1—H1N | 119.7 |
C7—C8—C9 | 118.0 (3) | S1—N1—H1N | 119.7 |
C7—C8—C13 | 121.7 (3) | O1—S1—O2 | 120.18 (15) |
C9—C8—C13 | 120.3 (3) | O1—S1—N1 | 106.86 (14) |
C10—C9—C8 | 119.5 (3) | O2—S1—N1 | 106.92 (14) |
C10—C9—C14 | 120.1 (3) | O1—S1—C1 | 107.77 (15) |
C8—C9—C14 | 120.4 (3) | O2—S1—C1 | 107.62 (15) |
C11—C10—C9 | 121.5 (4) | N1—S1—C1 | 106.81 (14) |
C11—C10—H10 | 119.3 | ||
C6—C1—C2—C3 | 0.4 (5) | C8—C9—C10—C11 | −0.1 (5) |
S1—C1—C2—C3 | −175.1 (3) | C14—C9—C10—C11 | −178.8 (3) |
C1—C2—C3—C4 | 0.3 (5) | C9—C10—C11—C12 | −0.2 (6) |
C2—C3—C4—C5 | −1.2 (5) | C10—C11—C12—C7 | −0.8 (6) |
C2—C3—C4—Cl1 | 178.7 (3) | C8—C7—C12—C11 | 2.1 (5) |
C3—C4—C5—C6 | 1.3 (5) | N1—C7—C12—C11 | 179.2 (3) |
Cl1—C4—C5—C6 | −178.5 (3) | C12—C7—N1—S1 | 91.9 (3) |
C4—C5—C6—C1 | −0.6 (5) | C8—C7—N1—S1 | −91.0 (3) |
C2—C1—C6—C5 | −0.3 (5) | C7—N1—S1—O1 | 174.6 (2) |
S1—C1—C6—C5 | 175.3 (3) | C7—N1—S1—O2 | 44.7 (3) |
C12—C7—C8—C9 | −2.3 (5) | C7—N1—S1—C1 | −70.3 (3) |
N1—C7—C8—C9 | −179.4 (3) | C6—C1—S1—O1 | 22.9 (3) |
C12—C7—C8—C13 | 176.9 (3) | C2—C1—S1—O1 | −161.6 (3) |
N1—C7—C8—C13 | −0.1 (4) | C6—C1—S1—O2 | 153.8 (3) |
C7—C8—C9—C10 | 1.3 (5) | C2—C1—S1—O2 | −30.6 (3) |
C13—C8—C9—C10 | −178.0 (3) | C6—C1—S1—N1 | −91.7 (3) |
C7—C8—C9—C14 | 180.0 (3) | C2—C1—S1—N1 | 83.9 (3) |
C13—C8—C9—C14 | 0.7 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O2i | 0.86 | 2.46 | 2.893 (3) | 112 |
Symmetry code: (i) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C14H14ClNO2S |
Mr | 295.77 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 4.9926 (6), 22.296 (3), 12.793 (2) |
β (°) | 90.11 (1) |
V (Å3) | 1424.1 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.41 |
Crystal size (mm) | 0.40 × 0.12 × 0.10 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.853, 0.960 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5341, 2669, 1882 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.610 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.055, 0.116, 1.07 |
No. of reflections | 2669 |
No. of parameters | 172 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.47, −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···O2i | 0.86 | 2.46 | 2.893 (3) | 112 |
Symmetry code: (i) x−1, y, z. |
Acknowledgements
KS thanks the University Grants Commission, Government of India, New Delhi, for the award of a research fellowship under its faculty improvement program.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The sulfonamide moiety is a constituent of many biologically important compounds. The hydrogen bonding preferences of sulfonamides has been investigated (Adsmond & Grant, 2001). As a part of studying the substituent effects on the structures of this class of compounds (Gowda et al., 2004, 2007, 2009; Shakuntala et al., 2011), in the present work, the crystal structure of 4-chloro-N-(2,3-dimethylphenyl)-benzenesulfonamide, (I), has been determined (Fig. 1). In the title compound, the amino H atom is trans to one of the O atoms of the SO2 group. Furthermore, the N—H bond is syn to the ortho- and meta-methyl groups of the aromatic ring, in contrast to the anti conformation observed between the N—H bond, and the ortho- and meta-methyl groups in N-(2,3-dimethylphenyl)-benzenesulfonamide (II) (Gowda et al., 2009). The molecule is twisted at the S atom with the C—SO2—NH—C torsion angle of -70.3 (3)°, compared to the values of 71.0 (2)° in (II), and -53.8 (3)° and -63.4 (3)° in the two independent molecules of 4-chloro-N-(phenyl)-benzenesulfonamide (III) (Shakuntala et al., 2011).
The sulfonyl and the anilino benzene rings are tilted relative to each other by 34.7 (1)° in (I), compared to the values of 64.8 (1)° in (II), and 69.1 (1)° and 82.6 (1)° in the two independent molecules of (III).
The packing of molecules in the title compound via intermolecular N—H···O hydrogen bonds (Table 1) is shown in Fig. 2.