organic compounds
4-Chloro-N-(3,4-dimethylphenyl)benzamide
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, C15H14ClNO, the N—H bond is trans to the C=O bond. The dihedral angle between the two aromatic rings is 5.5 (2)°. In the crystal, intermolecular N—H⋯O hydrogen bonds link the molecules into chains running along the a axis.
Related literature
For the preparation of the title compound, see: Gowda et al. (2003). For related structures, see: Bowes et al. (2003); Gowda et al. (2008a,b, 2009).
Experimental
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
https://doi.org/10.1107/S1600536810014972/bt5253sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810014972/bt5253Isup2.hkl
The title compound was prepared according to the literature method (Gowda et al., 2003). The purity of the compound was checked by determining its melting point. It was characterized by recording its infrared and NMR spectra.
Needle like colourless single crystals of the title compound used in X-ray diffraction studies were obtained from a slow evaporation of its ethanolic solution at room temperature.
The H atom of the NH group was located in a difference map. It was refined with the distance restrained to N—H = 0.86 (1) %A. 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 crystal structures of benzanilides (Gowda et al., 2008a,b, 2009), the structure of N-(3,4-dimethylphenyl)-4-chlorobenzamide (I) has been determined. In the structure, the conformations of the N—H and C=O bonds are anti to each other(Fig. 1), similar to those observed in N-(3,4-dimethylphenyl)-4-methylbenzamide(II)(Gowda et al., 2009), N-(3,4-dimethylphenyl)benzamide(III)(Gowda et al., 2008a), N-(2,6-dimethylphenyl)4-chlorobenzamide (IV)(Gowda et al., 2008b) and the parent benzanilide (Bowes et al., 2003). Further, the conformation of the N—H bond is syn to the meta- methyl-substituent in the anilino ring.
The dihedral angle between the two benzene rings is 5.5 (2)°, compared to the values of 52.6 (1)° and 10.5 (1)° in the two molecules of (II), and 39.9 (2)°, 51.0 (1)° and 87.2 (3)° in the molecules 1, 2 and 3 of (IV), respectively.
The packing diagram of molecules in (I) showing the intermolecular N–H···O hydrogen bonds (Table 1) involved in the formation of molecular chains running along the a-axis is shown in Fig. 2.
For the preparation of the title compound, see: Gowda et al. (2003). For related structures, see: Bowes et al. (2003); Gowda et al. (2008a,b, 2009).
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).C15H14ClNO | F(000) = 1088 |
Mr = 259.72 | Dx = 1.271 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 2409 reflections |
a = 9.550 (1) Å | θ = 2.6–27.9° |
b = 10.104 (2) Å | µ = 0.27 mm−1 |
c = 28.133 (4) Å | T = 299 K |
V = 2714.6 (7) Å3 | Needle, colourless |
Z = 8 | 0.38 × 0.20 × 0.06 mm |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2469 independent reflections |
Radiation source: fine-focus sealed tube | 1405 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
Rotation method data acquisition using ω and phi scans | θmax = 25.3°, θmin = 2.6° |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | h = −11→10 |
Tmin = 0.905, Tmax = 0.984 | k = −7→12 |
9354 measured reflections | l = −24→33 |
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)] = 0.086 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.193 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.16 | w = 1/[σ2(Fo2) + (0.0485P)2 + 3.5049P] where P = (Fo2 + 2Fc2)/3 |
2469 reflections | (Δ/σ)max = 0.003 |
166 parameters | Δρmax = 0.23 e Å−3 |
1 restraint | Δρmin = −0.23 e Å−3 |
C15H14ClNO | V = 2714.6 (7) Å3 |
Mr = 259.72 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 9.550 (1) Å | µ = 0.27 mm−1 |
b = 10.104 (2) Å | T = 299 K |
c = 28.133 (4) Å | 0.38 × 0.20 × 0.06 mm |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2469 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | 1405 reflections with I > 2σ(I) |
Tmin = 0.905, Tmax = 0.984 | Rint = 0.051 |
9354 measured reflections |
R[F2 > 2σ(F2)] = 0.086 | 1 restraint |
wR(F2) = 0.193 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.16 | Δρmax = 0.23 e Å−3 |
2469 reflections | Δρmin = −0.23 e Å−3 |
166 parameters |
Experimental. CrysAlis RED (Oxford Diffraction, 2009) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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. |
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 | 0.3133 (4) | 0.2816 (4) | 0.31176 (13) | 0.0477 (10) | |
C2 | 0.2436 (5) | 0.2315 (5) | 0.35073 (13) | 0.0576 (12) | |
H2 | 0.1655 | 0.1782 | 0.3459 | 0.069* | |
C3 | 0.2865 (5) | 0.2583 (5) | 0.39707 (13) | 0.0581 (12) | |
C4 | 0.4057 (5) | 0.3357 (5) | 0.40367 (15) | 0.0602 (13) | |
C5 | 0.4728 (5) | 0.3856 (4) | 0.36439 (16) | 0.0611 (12) | |
H5 | 0.5514 | 0.4386 | 0.3689 | 0.073* | |
C6 | 0.4286 (5) | 0.3605 (4) | 0.31838 (14) | 0.0551 (12) | |
H6 | 0.4759 | 0.3964 | 0.2925 | 0.066* | |
C7 | 0.3374 (4) | 0.2232 (4) | 0.22645 (13) | 0.0500 (11) | |
C8 | 0.2595 (5) | 0.1668 (4) | 0.18478 (12) | 0.0457 (10) | |
C9 | 0.3119 (5) | 0.1932 (4) | 0.13955 (13) | 0.0564 (12) | |
H9 | 0.3899 | 0.2475 | 0.1363 | 0.068* | |
C10 | 0.2503 (6) | 0.1405 (5) | 0.09976 (14) | 0.0663 (14) | |
H10 | 0.2859 | 0.1590 | 0.0697 | 0.080* | |
C11 | 0.1355 (6) | 0.0602 (5) | 0.10495 (15) | 0.0655 (14) | |
C12 | 0.0799 (5) | 0.0327 (4) | 0.14903 (17) | 0.0664 (13) | |
H12 | 0.0014 | −0.0211 | 0.1520 | 0.080* | |
C13 | 0.1436 (5) | 0.0869 (4) | 0.18880 (15) | 0.0573 (12) | |
H13 | 0.1072 | 0.0688 | 0.2188 | 0.069* | |
C14 | 0.2071 (6) | 0.2009 (6) | 0.43859 (15) | 0.0912 (18) | |
H14A | 0.2101 | 0.1061 | 0.4371 | 0.109* | |
H14B | 0.1114 | 0.2300 | 0.4374 | 0.109* | |
H14C | 0.2491 | 0.2302 | 0.4678 | 0.109* | |
C15 | 0.4610 (6) | 0.3627 (5) | 0.45336 (16) | 0.0898 (18) | |
H15A | 0.4821 | 0.2804 | 0.4688 | 0.108* | |
H15B | 0.3915 | 0.4095 | 0.4714 | 0.108* | |
H15C | 0.5445 | 0.4154 | 0.4513 | 0.108* | |
N1 | 0.2614 (3) | 0.2460 (4) | 0.26579 (11) | 0.0547 (10) | |
H1N | 0.1728 (14) | 0.233 (4) | 0.2629 (14) | 0.066* | |
O1 | 0.4632 (3) | 0.2440 (4) | 0.22403 (10) | 0.0739 (10) | |
Cl1 | 0.0598 (2) | −0.01106 (17) | 0.05511 (5) | 0.1200 (8) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.038 (2) | 0.061 (3) | 0.044 (2) | −0.002 (2) | −0.0062 (18) | −0.007 (2) |
C2 | 0.045 (3) | 0.077 (3) | 0.051 (2) | −0.007 (3) | 0.001 (2) | −0.003 (2) |
C3 | 0.066 (3) | 0.070 (3) | 0.038 (2) | 0.007 (3) | 0.002 (2) | −0.001 (2) |
C4 | 0.072 (4) | 0.059 (3) | 0.050 (3) | 0.007 (3) | −0.016 (2) | −0.010 (2) |
C5 | 0.064 (3) | 0.052 (3) | 0.067 (3) | −0.012 (3) | −0.014 (3) | −0.009 (2) |
C6 | 0.057 (3) | 0.062 (3) | 0.046 (2) | −0.009 (3) | −0.002 (2) | −0.002 (2) |
C7 | 0.040 (3) | 0.070 (3) | 0.039 (2) | 0.006 (2) | −0.0009 (19) | 0.000 (2) |
C8 | 0.042 (3) | 0.056 (3) | 0.039 (2) | 0.008 (2) | −0.0043 (19) | −0.0027 (18) |
C9 | 0.059 (3) | 0.066 (3) | 0.045 (2) | 0.008 (3) | 0.003 (2) | 0.002 (2) |
C10 | 0.089 (4) | 0.076 (3) | 0.034 (2) | 0.018 (3) | −0.004 (2) | −0.005 (2) |
C11 | 0.088 (4) | 0.060 (3) | 0.048 (3) | 0.013 (3) | −0.020 (3) | −0.014 (2) |
C12 | 0.072 (4) | 0.054 (3) | 0.074 (3) | −0.004 (3) | −0.013 (3) | −0.014 (2) |
C13 | 0.063 (3) | 0.060 (3) | 0.050 (2) | 0.002 (3) | 0.005 (2) | −0.006 (2) |
C14 | 0.096 (5) | 0.125 (5) | 0.052 (3) | −0.003 (4) | 0.005 (3) | 0.006 (3) |
C15 | 0.128 (5) | 0.084 (4) | 0.058 (3) | 0.001 (4) | −0.032 (3) | −0.014 (3) |
N1 | 0.0341 (19) | 0.087 (3) | 0.0428 (18) | −0.007 (2) | −0.0019 (16) | −0.0121 (17) |
O1 | 0.0312 (16) | 0.138 (3) | 0.0523 (18) | −0.003 (2) | 0.0006 (13) | −0.0042 (18) |
Cl1 | 0.1683 (18) | 0.1139 (13) | 0.0777 (10) | 0.0066 (13) | −0.0518 (10) | −0.0319 (9) |
C1—C6 | 1.372 (5) | C9—C10 | 1.372 (6) |
C1—C2 | 1.379 (5) | C9—H9 | 0.9300 |
C1—N1 | 1.431 (5) | C10—C11 | 1.372 (7) |
C2—C3 | 1.393 (5) | C10—H10 | 0.9300 |
C2—H2 | 0.9300 | C11—C12 | 1.378 (6) |
C3—C4 | 1.394 (6) | C11—Cl1 | 1.734 (4) |
C3—C14 | 1.508 (6) | C12—C13 | 1.386 (6) |
C4—C5 | 1.374 (6) | C12—H12 | 0.9300 |
C4—C15 | 1.519 (6) | C13—H13 | 0.9300 |
C5—C6 | 1.385 (5) | C14—H14A | 0.9600 |
C5—H5 | 0.9300 | C14—H14B | 0.9600 |
C6—H6 | 0.9300 | C14—H14C | 0.9600 |
C7—O1 | 1.221 (5) | C15—H15A | 0.9600 |
C7—N1 | 1.344 (5) | C15—H15B | 0.9600 |
C7—C8 | 1.500 (5) | C15—H15C | 0.9600 |
C8—C13 | 1.376 (6) | N1—H1N | 0.860 (10) |
C8—C9 | 1.393 (5) | ||
C6—C1—C2 | 119.5 (4) | C9—C10—C11 | 119.0 (4) |
C6—C1—N1 | 123.2 (4) | C9—C10—H10 | 120.5 |
C2—C1—N1 | 117.3 (4) | C11—C10—H10 | 120.5 |
C1—C2—C3 | 122.1 (4) | C10—C11—C12 | 121.6 (4) |
C1—C2—H2 | 118.9 | C10—C11—Cl1 | 119.5 (4) |
C3—C2—H2 | 118.9 | C12—C11—Cl1 | 118.9 (4) |
C2—C3—C4 | 118.3 (4) | C11—C12—C13 | 118.5 (5) |
C2—C3—C14 | 120.2 (4) | C11—C12—H12 | 120.7 |
C4—C3—C14 | 121.5 (4) | C13—C12—H12 | 120.7 |
C5—C4—C3 | 118.7 (4) | C8—C13—C12 | 121.3 (4) |
C5—C4—C15 | 120.8 (5) | C8—C13—H13 | 119.4 |
C3—C4—C15 | 120.5 (5) | C12—C13—H13 | 119.4 |
C4—C5—C6 | 122.8 (4) | C3—C14—H14A | 109.5 |
C4—C5—H5 | 118.6 | C3—C14—H14B | 109.5 |
C6—C5—H5 | 118.6 | H14A—C14—H14B | 109.5 |
C1—C6—C5 | 118.6 (4) | C3—C14—H14C | 109.5 |
C1—C6—H6 | 120.7 | H14A—C14—H14C | 109.5 |
C5—C6—H6 | 120.7 | H14B—C14—H14C | 109.5 |
O1—C7—N1 | 123.2 (4) | C4—C15—H15A | 109.5 |
O1—C7—C8 | 120.6 (4) | C4—C15—H15B | 109.5 |
N1—C7—C8 | 116.2 (4) | H15A—C15—H15B | 109.5 |
C13—C8—C9 | 118.5 (4) | C4—C15—H15C | 109.5 |
C13—C8—C7 | 123.9 (4) | H15A—C15—H15C | 109.5 |
C9—C8—C7 | 117.6 (4) | H15B—C15—H15C | 109.5 |
C10—C9—C8 | 121.1 (5) | C7—N1—C1 | 126.9 (3) |
C10—C9—H9 | 119.4 | C7—N1—H1N | 115 (3) |
C8—C9—H9 | 119.4 | C1—N1—H1N | 118 (3) |
C6—C1—C2—C3 | −0.1 (7) | N1—C7—C8—C9 | 153.1 (4) |
N1—C1—C2—C3 | 179.0 (4) | C13—C8—C9—C10 | −0.3 (6) |
C1—C2—C3—C4 | −1.5 (7) | C7—C8—C9—C10 | 177.1 (4) |
C1—C2—C3—C14 | −179.8 (4) | C8—C9—C10—C11 | −0.2 (7) |
C2—C3—C4—C5 | 2.1 (6) | C9—C10—C11—C12 | 0.7 (7) |
C14—C3—C4—C5 | −179.6 (5) | C9—C10—C11—Cl1 | −178.1 (3) |
C2—C3—C4—C15 | −177.2 (4) | C10—C11—C12—C13 | −0.7 (7) |
C14—C3—C4—C15 | 1.1 (7) | Cl1—C11—C12—C13 | 178.1 (3) |
C3—C4—C5—C6 | −1.1 (7) | C9—C8—C13—C12 | 0.3 (6) |
C15—C4—C5—C6 | 178.1 (4) | C7—C8—C13—C12 | −176.9 (4) |
C2—C1—C6—C5 | 1.1 (6) | C11—C12—C13—C8 | 0.2 (7) |
N1—C1—C6—C5 | −178.0 (4) | O1—C7—N1—C1 | −8.0 (8) |
C4—C5—C6—C1 | −0.5 (7) | C8—C7—N1—C1 | 170.8 (4) |
O1—C7—C8—C13 | 149.2 (5) | C6—C1—N1—C7 | 34.7 (7) |
N1—C7—C8—C13 | −29.6 (6) | C2—C1—N1—C7 | −144.4 (5) |
O1—C7—C8—C9 | −28.1 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.86 (1) | 2.04 (2) | 2.862 (5) | 160 (4) |
Symmetry code: (i) x−1/2, y, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C15H14ClNO |
Mr | 259.72 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 299 |
a, b, c (Å) | 9.550 (1), 10.104 (2), 28.133 (4) |
V (Å3) | 2714.6 (7) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.27 |
Crystal size (mm) | 0.38 × 0.20 × 0.06 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.905, 0.984 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9354, 2469, 1405 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.602 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.086, 0.193, 1.16 |
No. of reflections | 2469 |
No. of parameters | 166 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.23 |
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 | 0.860 (10) | 2.039 (18) | 2.862 (5) | 160 (4) |
Symmetry code: (i) x−1/2, y, −z+1/2. |
Acknowledgements
VZR thanks the University Grants Commission, Government of India, New Delhi, for award of a research fellowship.
References
Bowes, K. F., Glidewell, C., Low, J. N., Skakle, J. M. S. & Wardell, J. L. (2003). Acta Cryst. C59, o1–o3. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
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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.
In the present work, as part of a study of the substituent effects on the crystal structures of benzanilides (Gowda et al., 2008a,b, 2009), the structure of N-(3,4-dimethylphenyl)-4-chlorobenzamide (I) has been determined. In the structure, the conformations of the N—H and C=O bonds are anti to each other(Fig. 1), similar to those observed in N-(3,4-dimethylphenyl)-4-methylbenzamide(II)(Gowda et al., 2009), N-(3,4-dimethylphenyl)benzamide(III)(Gowda et al., 2008a), N-(2,6-dimethylphenyl)4-chlorobenzamide (IV)(Gowda et al., 2008b) and the parent benzanilide (Bowes et al., 2003). Further, the conformation of the N—H bond is syn to the meta- methyl-substituent in the anilino ring.
The dihedral angle between the two benzene rings is 5.5 (2)°, compared to the values of 52.6 (1)° and 10.5 (1)° in the two molecules of (II), and 39.9 (2)°, 51.0 (1)° and 87.2 (3)° in the molecules 1, 2 and 3 of (IV), respectively.
The packing diagram of molecules in (I) showing the intermolecular N–H···O hydrogen bonds (Table 1) involved in the formation of molecular chains running along the a-axis is shown in Fig. 2.