organic compounds
N-(4-Chlorophenyl)-3-methylbenzamide
aDepartment of Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore, India, bFaculty of Chemical and Food Technology, Slovak Technical University, Radlinského 9, SK-812 37 Bratislava, Slovak Republic, and cInstitute of Materials Science, Darmstadt University of Technology, Petersenstrasse 23, D-64287, Darmstadt, Germany
*Correspondence e-mail: gowdabt@yahoo.com
In the structure of the title compound, C14H12ClNO, the conformations of the N—H and C=O bonds are anti to each other. Furthermore, the conformation of the C=O bond is syn to the meta-methyl group in the benzoyl ring. The central –NH—C(=O)– amido group makes a dihedral angle of 32.4 (1)° with the benzoyl ring and 36.1 (1)° with the anilino ring. The dihedral angle between the two benzene rings is 68.4 (1)°. 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, Foro et al. (2008, 2009); Gowda, Tokarčík et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlisPro (Oxford Diffraction, 2009); cell CrysAlisPro; data reduction: CrysAlisPro; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2002); software used to prepare material for publication: SHELXL97, PLATON (Spek, 2009) and WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536809041956/om2285sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809041956/om2285Isup2.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. 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.
All hydrogen atoms were seen in difference map. H atom attached to nitrogen was refined with the N—H distance restrained to 0.86 (2) Å. H atoms attached to carbon atoms were placed in calculated positions with C–H distances of 0.93 Å (C aromatic) and 0.96 Å (C methyl). The Uiso(H) values were set at 1.2Ueq(C aromatic, N) and 1.5 Ueq(C methyl). The C14 methyl group shows orientational disorder in the hydrogen atom positions. The two sets of methyl hydrogen atoms were refined with equal occupancy.
In the present work, as part of a study of the substituent effects on the solid state structures of benzanilides (Gowda, Foro et al., 2008, 2009; Gowda, Tokarčík et al., 2008), the structure of N-(4-chlorophenyl)3-methylbenzamide (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-(4-chlorophenyl)2-methylbenzamide (II)(Gowda, Foro et al., 2008), N-(4-chlorophenyl)benzamide (III)(Gowda, Tokarčík et al., 2008), 3-methyl-N-(phenyl)benzamide (IV) (Gowda, Foro et al., 2008) and the parent benzanilide (Bowes et al., 2003). Further, the conformation of the C=O bond in (I) is syn to the meta-methyl substituent in the benzoyl ring. The central amido group –NH—C(=O)– makes a dihedral angle of 32.4 (1)° with the methyl-phenyl ring (benzoyl) and 36.1 (1)° with the chloro-phenyl ring (anilino). The dihedral angle between the two benzene rings is 68.4 (1)°, compared to the values of 83.1 (1)° in (II), 60.76 (3)°) in (III), and 22.17 (18)° & 75.86 (12)°, respectively, in molecules 1 and 2 of (IV).
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, Foro et al. (2008, 2009); Gowda, Tokarčík et al. (2008).
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell
CrysAlis PRO (Oxford Diffraction, 2009); data reduction: CrysAlis PRO (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2002); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and WinGX (Farrugia, 1999).C14H12ClNO | F(000) = 512 |
Mr = 245.7 | Dx = 1.351 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 15854 reflections |
a = 5.31325 (9) Å | θ = 2.5–29.5° |
b = 13.9256 (2) Å | µ = 0.30 mm−1 |
c = 16.3497 (3) Å | T = 295 K |
β = 93.1799 (16)° | Block, colourless |
V = 1207.86 (3) Å3 | 0.54 × 0.41 × 0.24 mm |
Z = 4 |
Oxford Diffraction Xcalibur, Ruby, Gemini diffractometer | 2327 independent reflections |
Graphite monochromator | 2083 reflections with I > 2σ(I) |
Detector resolution: 10.434 pixels mm-1 | Rint = 0.021 |
ω scans | θmax = 25.8°, θmin = 2.5° |
Absorption correction: analytical (CrysAlis PRO; Oxford Diffraction, 2009) | h = −6→6 |
Tmin = 0.842, Tmax = 0.933 | k = −17→17 |
22561 measured reflections | l = −19→19 |
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)] = 0.034 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.093 | w = 1/[σ2(Fo2) + (0.0428P)2 + 0.3304P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max = 0.001 |
2327 reflections | Δρmax = 0.20 e Å−3 |
160 parameters | Δρmin = −0.25 e Å−3 |
1 restraint | Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0092 (14) |
C14H12ClNO | V = 1207.86 (3) Å3 |
Mr = 245.7 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 5.31325 (9) Å | µ = 0.30 mm−1 |
b = 13.9256 (2) Å | T = 295 K |
c = 16.3497 (3) Å | 0.54 × 0.41 × 0.24 mm |
β = 93.1799 (16)° |
Oxford Diffraction Xcalibur, Ruby, Gemini diffractometer | 2327 independent reflections |
Absorption correction: analytical (CrysAlis PRO; Oxford Diffraction, 2009) | 2083 reflections with I > 2σ(I) |
Tmin = 0.842, Tmax = 0.933 | Rint = 0.021 |
22561 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 1 restraint |
wR(F2) = 0.093 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.20 e Å−3 |
2327 reflections | Δρmin = −0.25 e Å−3 |
160 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 | Occ. (<1) | |
N1 | 0.1646 (2) | 0.45549 (8) | 0.39171 (8) | 0.0412 (3) | |
H1N | 0.017 (3) | 0.4290 (12) | 0.3885 (10) | 0.049* | |
O1 | 0.58424 (19) | 0.42883 (8) | 0.38537 (8) | 0.0557 (3) | |
C1 | 0.3719 (2) | 0.39844 (10) | 0.39515 (8) | 0.0386 (3) | |
C2 | 0.3269 (2) | 0.29460 (10) | 0.41211 (8) | 0.0369 (3) | |
C3 | 0.4867 (3) | 0.22789 (10) | 0.37862 (9) | 0.0405 (3) | |
H3 | 0.6157 | 0.2493 | 0.347 | 0.049* | |
C4 | 0.4574 (3) | 0.13000 (10) | 0.39146 (9) | 0.0431 (3) | |
C5 | 0.2706 (3) | 0.10059 (11) | 0.44192 (10) | 0.0498 (4) | |
H5 | 0.2506 | 0.0355 | 0.4525 | 0.06* | |
C6 | 0.1136 (3) | 0.16637 (12) | 0.47667 (10) | 0.0522 (4) | |
H6 | −0.0093 | 0.1451 | 0.5108 | 0.063* | |
C7 | 0.1374 (3) | 0.26343 (11) | 0.46128 (9) | 0.0437 (3) | |
H7 | 0.0283 | 0.3073 | 0.4835 | 0.052* | |
C8 | 0.1610 (2) | 0.55455 (10) | 0.37157 (8) | 0.0366 (3) | |
C9 | 0.3518 (3) | 0.61698 (11) | 0.39831 (9) | 0.0443 (3) | |
H9 | 0.4893 | 0.5941 | 0.4302 | 0.053* | |
C10 | 0.3380 (3) | 0.71322 (11) | 0.37762 (10) | 0.0482 (4) | |
H10 | 0.4658 | 0.7551 | 0.3955 | 0.058* | |
C11 | 0.1347 (3) | 0.74660 (11) | 0.33054 (9) | 0.0447 (4) | |
C12 | −0.0573 (3) | 0.68588 (11) | 0.30389 (10) | 0.0489 (4) | |
H12 | −0.1946 | 0.7093 | 0.2722 | 0.059* | |
C13 | −0.0436 (3) | 0.58985 (11) | 0.32472 (9) | 0.0449 (3) | |
H13 | −0.173 | 0.5485 | 0.3071 | 0.054* | |
C14 | 0.6205 (3) | 0.05784 (13) | 0.35038 (12) | 0.0605 (4) | |
H14A | 0.7546 | 0.0907 | 0.325 | 0.091* | 0.5 |
H14B | 0.5204 | 0.0233 | 0.3095 | 0.091* | 0.5 |
H14C | 0.6904 | 0.0136 | 0.3905 | 0.091* | 0.5 |
H14D | 0.5557 | −0.0056 | 0.3583 | 0.091* | 0.5 |
H14E | 0.7899 | 0.0617 | 0.3738 | 0.091* | 0.5 |
H14F | 0.6198 | 0.0715 | 0.2928 | 0.091* | 0.5 |
Cl1 | 0.11527 (11) | 0.86780 (3) | 0.30416 (3) | 0.07259 (19) |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0333 (6) | 0.0357 (6) | 0.0548 (7) | −0.0041 (5) | 0.0028 (5) | 0.0011 (5) |
O1 | 0.0374 (5) | 0.0426 (6) | 0.0884 (9) | −0.0029 (4) | 0.0141 (5) | 0.0086 (6) |
C1 | 0.0371 (7) | 0.0378 (7) | 0.0413 (7) | −0.0025 (6) | 0.0052 (5) | 0.0010 (6) |
C2 | 0.0345 (6) | 0.0381 (7) | 0.0377 (7) | −0.0030 (5) | −0.0016 (5) | 0.0008 (6) |
C3 | 0.0355 (7) | 0.0430 (8) | 0.0429 (7) | −0.0015 (6) | 0.0028 (6) | 0.0010 (6) |
C4 | 0.0418 (7) | 0.0402 (8) | 0.0465 (8) | 0.0014 (6) | −0.0052 (6) | −0.0025 (6) |
C5 | 0.0538 (9) | 0.0363 (8) | 0.0589 (9) | −0.0057 (7) | −0.0005 (7) | 0.0045 (7) |
C6 | 0.0524 (9) | 0.0478 (9) | 0.0577 (9) | −0.0102 (7) | 0.0146 (7) | 0.0050 (7) |
C7 | 0.0409 (7) | 0.0420 (8) | 0.0490 (8) | −0.0025 (6) | 0.0093 (6) | −0.0008 (6) |
C8 | 0.0355 (7) | 0.0354 (7) | 0.0393 (7) | −0.0015 (5) | 0.0068 (5) | −0.0012 (5) |
C9 | 0.0390 (7) | 0.0420 (8) | 0.0511 (8) | 0.0002 (6) | −0.0043 (6) | −0.0048 (6) |
C10 | 0.0449 (8) | 0.0397 (8) | 0.0600 (9) | −0.0089 (6) | 0.0028 (7) | −0.0082 (7) |
C11 | 0.0532 (9) | 0.0361 (7) | 0.0460 (8) | −0.0013 (6) | 0.0133 (7) | 0.0022 (6) |
C12 | 0.0464 (8) | 0.0474 (8) | 0.0523 (9) | 0.0027 (7) | −0.0026 (7) | 0.0074 (7) |
C13 | 0.0373 (7) | 0.0428 (8) | 0.0540 (9) | −0.0059 (6) | −0.0019 (6) | 0.0007 (7) |
C14 | 0.0588 (10) | 0.0486 (9) | 0.0743 (12) | 0.0070 (8) | 0.0055 (8) | −0.0091 (8) |
Cl1 | 0.0979 (4) | 0.0399 (2) | 0.0805 (3) | −0.0026 (2) | 0.0090 (3) | 0.0145 (2) |
N1—C1 | 1.3565 (18) | C8—C9 | 1.388 (2) |
N1—C8 | 1.4181 (18) | C9—C10 | 1.383 (2) |
N1—H1N | 0.864 (14) | C9—H9 | 0.93 |
O1—C1 | 1.2239 (17) | C10—C11 | 1.372 (2) |
C1—C2 | 1.4942 (19) | C10—H10 | 0.93 |
C2—C3 | 1.391 (2) | C11—C12 | 1.377 (2) |
C2—C7 | 1.3922 (19) | C11—Cl1 | 1.7437 (15) |
C3—C4 | 1.389 (2) | C12—C13 | 1.381 (2) |
C3—H3 | 0.93 | C12—H12 | 0.93 |
C4—C5 | 1.387 (2) | C13—H13 | 0.93 |
C4—C14 | 1.509 (2) | C14—H14A | 0.96 |
C5—C6 | 1.382 (2) | C14—H14B | 0.96 |
C5—H5 | 0.93 | C14—H14C | 0.96 |
C6—C7 | 1.382 (2) | C14—H14D | 0.96 |
C6—H6 | 0.93 | C14—H14E | 0.96 |
C7—H7 | 0.93 | C14—H14F | 0.96 |
C8—C13 | 1.385 (2) | ||
C1—N1—C8 | 125.43 (12) | C9—C10—H10 | 120.2 |
C1—N1—H1N | 118.9 (11) | C10—C11—C12 | 121.04 (14) |
C8—N1—H1N | 113.6 (11) | C10—C11—Cl1 | 120.05 (12) |
O1—C1—N1 | 122.98 (13) | C12—C11—Cl1 | 118.91 (12) |
O1—C1—C2 | 121.13 (12) | C11—C12—C13 | 119.25 (14) |
N1—C1—C2 | 115.89 (12) | C11—C12—H12 | 120.4 |
C3—C2—C7 | 119.73 (13) | C13—C12—H12 | 120.4 |
C3—C2—C1 | 117.77 (12) | C12—C13—C8 | 120.61 (13) |
C7—C2—C1 | 122.49 (13) | C12—C13—H13 | 119.7 |
C4—C3—C2 | 121.34 (13) | C8—C13—H13 | 119.7 |
C4—C3—H3 | 119.3 | C4—C14—H14A | 109.5 |
C2—C3—H3 | 119.3 | C4—C14—H14B | 109.5 |
C5—C4—C3 | 117.98 (14) | H14A—C14—H14B | 109.5 |
C5—C4—C14 | 121.05 (14) | C4—C14—H14C | 109.5 |
C3—C4—C14 | 120.96 (14) | H14A—C14—H14C | 109.5 |
C6—C5—C4 | 121.12 (14) | H14B—C14—H14C | 109.5 |
C6—C5—H5 | 119.4 | C4—C14—H14D | 109.5 |
C4—C5—H5 | 119.4 | H14A—C14—H14D | 141.1 |
C7—C6—C5 | 120.66 (14) | H14B—C14—H14D | 56.3 |
C7—C6—H6 | 119.7 | H14C—C14—H14D | 56.3 |
C5—C6—H6 | 119.7 | C4—C14—H14E | 109.5 |
C6—C7—C2 | 119.11 (14) | H14A—C14—H14E | 56.3 |
C6—C7—H7 | 120.4 | H14B—C14—H14E | 141.1 |
C2—C7—H7 | 120.4 | H14C—C14—H14E | 56.3 |
C13—C8—C9 | 119.29 (13) | H14D—C14—H14E | 109.5 |
C13—C8—N1 | 118.28 (12) | C4—C14—H14F | 109.5 |
C9—C8—N1 | 122.42 (13) | H14A—C14—H14F | 56.3 |
C10—C9—C8 | 120.13 (14) | H14B—C14—H14F | 56.3 |
C10—C9—H9 | 119.9 | H14C—C14—H14F | 141.1 |
C8—C9—H9 | 119.9 | H14D—C14—H14F | 109.5 |
C11—C10—C9 | 119.67 (13) | H14E—C14—H14F | 109.5 |
C11—C10—H10 | 120.2 | ||
C8—N1—C1—O1 | 4.3 (2) | C3—C2—C7—C6 | 0.7 (2) |
C8—N1—C1—C2 | −175.93 (12) | C1—C2—C7—C6 | −177.55 (14) |
O1—C1—C2—C3 | −31.1 (2) | C1—N1—C8—C13 | 142.17 (15) |
N1—C1—C2—C3 | 149.10 (13) | C1—N1—C8—C9 | −39.0 (2) |
O1—C1—C2—C7 | 147.24 (15) | C13—C8—C9—C10 | −0.6 (2) |
N1—C1—C2—C7 | −32.57 (19) | N1—C8—C9—C10 | −179.33 (14) |
C7—C2—C3—C4 | 1.7 (2) | C8—C9—C10—C11 | 0.0 (2) |
C1—C2—C3—C4 | −179.96 (13) | C9—C10—C11—C12 | 0.5 (2) |
C2—C3—C4—C5 | −2.9 (2) | C9—C10—C11—Cl1 | 179.97 (12) |
C2—C3—C4—C14 | 175.93 (14) | C10—C11—C12—C13 | −0.3 (2) |
C3—C4—C5—C6 | 1.7 (2) | Cl1—C11—C12—C13 | −179.82 (12) |
C14—C4—C5—C6 | −177.08 (15) | C11—C12—C13—C8 | −0.3 (2) |
C4—C5—C6—C7 | 0.6 (3) | C9—C8—C13—C12 | 0.7 (2) |
C5—C6—C7—C2 | −1.9 (2) | N1—C8—C13—C12 | 179.54 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.86 (1) | 2.30 (1) | 3.1019 (16) | 155 (2) |
Symmetry code: (i) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C14H12ClNO |
Mr | 245.7 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 5.31325 (9), 13.9256 (2), 16.3497 (3) |
β (°) | 93.1799 (16) |
V (Å3) | 1207.86 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.30 |
Crystal size (mm) | 0.54 × 0.41 × 0.24 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur, Ruby, Gemini |
Absorption correction | Analytical (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.842, 0.933 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22561, 2327, 2083 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.612 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.093, 1.08 |
No. of reflections | 2327 |
No. of parameters | 160 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.20, −0.25 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2009), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2002), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.864 (14) | 2.298 (14) | 3.1019 (16) | 154.7 (15) |
Symmetry code: (i) x−1, y, z. |
Acknowledgements
MT and JK thank the Grant Agency of the Slovak Republic (VEGA 1/0817/08) and Structural Funds, Interreg IIIA, for financial support in purchasing the diffractometer.
References
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In the present work, as part of a study of the substituent effects on the solid state structures of benzanilides (Gowda, Foro et al., 2008, 2009; Gowda, Tokarčík et al., 2008), the structure of N-(4-chlorophenyl)3-methylbenzamide (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-(4-chlorophenyl)2-methylbenzamide (II)(Gowda, Foro et al., 2008), N-(4-chlorophenyl)benzamide (III)(Gowda, Tokarčík et al., 2008), 3-methyl-N-(phenyl)benzamide (IV) (Gowda, Foro et al., 2008) and the parent benzanilide (Bowes et al., 2003). Further, the conformation of the C=O bond in (I) is syn to the meta-methyl substituent in the benzoyl ring. The central amido group –NH—C(=O)– makes a dihedral angle of 32.4 (1)° with the methyl-phenyl ring (benzoyl) and 36.1 (1)° with the chloro-phenyl ring (anilino). The dihedral angle between the two benzene rings is 68.4 (1)°, compared to the values of 83.1 (1)° in (II), 60.76 (3)°) in (III), and 22.17 (18)° & 75.86 (12)°, respectively, in molecules 1 and 2 of (IV).
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.