organic compounds
3-Methyl-N-(4-methylphenyl)benzamide
aDepartment of Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore, India, and bInstitute of Physical Chemistry and Chemical Physics, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
*Correspondence e-mail: gowdabt@yahoo.com
In the title compound, C15H15NO, the two aromatic rings make a dihedral angle of 70.06 (3)°, while the central amide core –NH—C(=O)– is twisted by 30.24 (4) and 40.16 (3)° out of the planes of the 3-methyphenyl and 4-methyphenyl rings, respectively. The methyl groups are disordered over two equally occupied positions. In the crystal, intermolecular N—H⋯O hydrogen bonds link the molecules into infinite chains running along the a axis.
Related literature
For the preparation of the title compound, see: Gowda et al. (2003). For studies on the effects of substituents on the structures and other aspects of N-(aryl)-amides, see: Bowes et al. (2003); Gowda et al. (2000); Saeed et al. (2010), on N-(aryl)-methanesulfonamides, see: Gowda et al. (2007), on N-(aryl)-arylsulfonamides, see: Shetty & Gowda (2005) and on N-chloro-arylsulfonamides, see: Gowda & Shetty (2004).
Experimental
Crystal data
|
Refinement
|
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell CrysAlis CCD; 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: DIAMOND (Brandenburg, 2002); software used to prepare material for publication: SHELXL97, PLATON (Spek, 2009) and WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536811040967/bq2308sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811040967/bq2308Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811040967/bq2308Isup3.cml
The title compound was prepared according to the method described by 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. Plate like colourless single crystals of the title compound were obtained by slow evaporation of an ethanol solution of the compound (0.5 g in about 30 ml of ethanol) at room temperature.
All hydrogen atoms except amide H atom were placed in calculated positions with C–H distances of 0.93 Å (C-aromatic), 0.96 Å (C-methyl) and constrained to ride on their parent atoms. The methyl groups of the aromatic ring are disordered over two equally occupied positions rotated with respect to each other by 60°. The amide H atom was seen in difference map and was refined with the N—H distance restrained to 0.86 (2) Å. The Uiso(H) values were set at 1.2 Ueq(C-aromatic, N) and 1.5 Ueq(C-methyl).
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell
CrysAlis CCD (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: DIAMOND (Brandenburg, 2002); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and WinGX (Farrugia, 1999).C15H15NO | F(000) = 480 |
Mr = 225.28 | Dx = 1.218 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 5.2694 (2) Å | Cell parameters from 3030 reflections |
b = 14.0877 (5) Å | θ = 3.5–28.9° |
c = 16.5665 (9) Å | µ = 0.08 mm−1 |
β = 92.588 (4)° | T = 295 K |
V = 1228.54 (9) Å3 | Plate, colourless |
Z = 4 | 0.32 × 0.21 × 0.12 mm |
Oxford Diffraction Xcalibur diffractometer | 2800 independent reflections |
Radiation source: fine-focus sealed tube | 1530 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.037 |
Detector resolution: 0 pixels mm-1 | θmax = 27.5°, θmin = 2.5° |
ω scans with κ offsets | h = −6→6 |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | k = −17→18 |
Tmin = 0.976, Tmax = 0.989 | l = −21→21 |
18822 measured reflections |
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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.088 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.83 | w = 1/[σ2(Fo2) + (0.0511P)2] where P = (Fo2 + 2Fc2)/3 |
2800 reflections | (Δ/σ)max < 0.001 |
158 parameters | Δρmax = 0.13 e Å−3 |
1 restraint | Δρmin = −0.15 e Å−3 |
C15H15NO | V = 1228.54 (9) Å3 |
Mr = 225.28 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 5.2694 (2) Å | µ = 0.08 mm−1 |
b = 14.0877 (5) Å | T = 295 K |
c = 16.5665 (9) Å | 0.32 × 0.21 × 0.12 mm |
β = 92.588 (4)° |
Oxford Diffraction Xcalibur diffractometer | 2800 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | 1530 reflections with I > 2σ(I) |
Tmin = 0.976, Tmax = 0.989 | Rint = 0.037 |
18822 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 1 restraint |
wR(F2) = 0.088 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.83 | Δρmax = 0.13 e Å−3 |
2800 reflections | Δρmin = −0.15 e Å−3 |
158 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) | |
C1 | 0.6296 (2) | 0.39571 (9) | 0.60497 (7) | 0.0465 (3) | |
C2 | 0.6781 (2) | 0.29397 (8) | 0.58628 (7) | 0.0440 (3) | |
C3 | 0.5224 (2) | 0.22617 (9) | 0.61906 (7) | 0.0485 (3) | |
H3 | 0.3922 | 0.2461 | 0.6511 | 0.058* | |
C4 | 0.5536 (2) | 0.12994 (9) | 0.60585 (8) | 0.0522 (3) | |
C5 | 0.7430 (2) | 0.10317 (10) | 0.55521 (8) | 0.0611 (4) | |
H5 | 0.7662 | 0.0391 | 0.5440 | 0.073* | |
C6 | 0.8977 (3) | 0.16938 (11) | 0.52114 (9) | 0.0633 (4) | |
H6 | 1.0228 | 0.1495 | 0.4871 | 0.076* | |
C7 | 0.8694 (2) | 0.26472 (10) | 0.53688 (8) | 0.0532 (3) | |
H7 | 0.9771 | 0.3090 | 0.5147 | 0.064* | |
C8 | 0.3925 (3) | 0.05761 (11) | 0.64662 (10) | 0.0733 (5) | |
H8A | 0.2724 | 0.0895 | 0.6790 | 0.110* | 0.50 |
H8B | 0.4992 | 0.0174 | 0.6804 | 0.110* | 0.50 |
H8C | 0.3032 | 0.0198 | 0.6064 | 0.110* | 0.50 |
H8D | 0.4441 | −0.0050 | 0.6315 | 0.110* | 0.50 |
H8E | 0.2173 | 0.0670 | 0.6302 | 0.110* | 0.50 |
H8F | 0.4134 | 0.0647 | 0.7042 | 0.110* | 0.50 |
C9 | 0.8328 (2) | 0.55183 (9) | 0.62876 (7) | 0.0437 (3) | |
C10 | 0.6436 (2) | 0.61320 (10) | 0.60252 (8) | 0.0547 (4) | |
H10 | 0.5077 | 0.5911 | 0.5700 | 0.066* | |
C11 | 0.6557 (2) | 0.70751 (10) | 0.62446 (9) | 0.0592 (4) | |
H11 | 0.5264 | 0.7481 | 0.6062 | 0.071* | |
C12 | 0.8528 (2) | 0.74372 (9) | 0.67253 (8) | 0.0537 (3) | |
C13 | 1.0412 (3) | 0.68103 (10) | 0.69753 (9) | 0.0620 (4) | |
H13 | 1.1777 | 0.7031 | 0.7298 | 0.074* | |
C14 | 1.0328 (2) | 0.58675 (10) | 0.67604 (8) | 0.0568 (4) | |
H14 | 1.1634 | 0.5463 | 0.6936 | 0.068* | |
C15 | 0.8641 (3) | 0.84701 (10) | 0.69657 (10) | 0.0796 (5) | |
H15A | 1.0149 | 0.8583 | 0.7299 | 0.119* | 0.50 |
H15B | 0.7173 | 0.8627 | 0.7262 | 0.119* | 0.50 |
H15C | 0.8673 | 0.8858 | 0.6490 | 0.119* | 0.50 |
H15D | 0.7181 | 0.8795 | 0.6734 | 0.119* | 0.50 |
H15E | 1.0157 | 0.8751 | 0.6772 | 0.119* | 0.50 |
H15F | 0.8657 | 0.8521 | 0.7544 | 0.119* | 0.50 |
N1 | 0.83366 (19) | 0.45397 (8) | 0.60708 (6) | 0.0491 (3) | |
O1 | 0.41508 (15) | 0.42350 (6) | 0.61856 (6) | 0.0643 (3) | |
H1 | 0.980 (2) | 0.4272 (8) | 0.6061 (7) | 0.049 (4)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0427 (7) | 0.0474 (8) | 0.0496 (8) | 0.0044 (6) | 0.0048 (5) | −0.0005 (6) |
C2 | 0.0402 (6) | 0.0455 (8) | 0.0461 (7) | 0.0052 (6) | −0.0012 (5) | −0.0019 (6) |
C3 | 0.0433 (6) | 0.0493 (9) | 0.0530 (8) | 0.0046 (6) | 0.0034 (5) | −0.0028 (6) |
C4 | 0.0513 (7) | 0.0481 (9) | 0.0564 (8) | 0.0021 (6) | −0.0055 (6) | 0.0010 (6) |
C5 | 0.0685 (8) | 0.0458 (8) | 0.0686 (10) | 0.0087 (7) | −0.0016 (7) | −0.0068 (7) |
C6 | 0.0652 (8) | 0.0600 (10) | 0.0659 (9) | 0.0136 (8) | 0.0167 (7) | −0.0071 (8) |
C7 | 0.0529 (7) | 0.0503 (9) | 0.0570 (8) | 0.0034 (6) | 0.0099 (6) | −0.0014 (7) |
C8 | 0.0740 (9) | 0.0552 (10) | 0.0908 (12) | −0.0059 (7) | 0.0041 (8) | 0.0095 (8) |
C9 | 0.0416 (6) | 0.0416 (8) | 0.0485 (7) | 0.0016 (6) | 0.0070 (5) | 0.0010 (6) |
C10 | 0.0492 (7) | 0.0506 (9) | 0.0636 (9) | 0.0015 (6) | −0.0054 (6) | 0.0062 (7) |
C11 | 0.0560 (8) | 0.0475 (9) | 0.0742 (10) | 0.0114 (7) | 0.0036 (7) | 0.0106 (7) |
C12 | 0.0633 (8) | 0.0447 (8) | 0.0543 (8) | 0.0025 (6) | 0.0156 (7) | −0.0011 (6) |
C13 | 0.0612 (8) | 0.0569 (10) | 0.0670 (9) | −0.0020 (7) | −0.0061 (7) | −0.0104 (7) |
C14 | 0.0485 (7) | 0.0496 (9) | 0.0717 (9) | 0.0087 (6) | −0.0047 (6) | −0.0045 (7) |
C15 | 0.1069 (12) | 0.0512 (10) | 0.0821 (11) | 0.0041 (9) | 0.0190 (9) | −0.0072 (8) |
N1 | 0.0377 (5) | 0.0447 (7) | 0.0653 (7) | 0.0049 (5) | 0.0059 (5) | −0.0027 (5) |
O1 | 0.0427 (5) | 0.0512 (6) | 0.1003 (7) | 0.0044 (4) | 0.0162 (4) | −0.0083 (5) |
C1—O1 | 1.2267 (12) | C9—C14 | 1.3752 (17) |
C1—N1 | 1.3519 (15) | C9—C10 | 1.3754 (16) |
C1—C2 | 1.4908 (17) | C9—N1 | 1.4247 (16) |
C2—C3 | 1.3855 (17) | C10—C11 | 1.3782 (18) |
C2—C7 | 1.3894 (16) | C10—H10 | 0.9300 |
C3—C4 | 1.3843 (18) | C11—C12 | 1.3776 (18) |
C3—H3 | 0.9300 | C11—H11 | 0.9300 |
C4—C5 | 1.3849 (18) | C12—C13 | 1.3783 (18) |
C4—C8 | 1.5056 (19) | C12—C15 | 1.5091 (19) |
C5—C6 | 1.3764 (19) | C13—C14 | 1.3753 (19) |
C5—H5 | 0.9300 | C13—H13 | 0.9300 |
C6—C7 | 1.3776 (19) | C14—H14 | 0.9300 |
C6—H6 | 0.9300 | C15—H15A | 0.9600 |
C7—H7 | 0.9300 | C15—H15B | 0.9600 |
C8—H8A | 0.9600 | C15—H15C | 0.9600 |
C8—H8B | 0.9600 | C15—H15D | 0.9600 |
C8—H8C | 0.9600 | C15—H15E | 0.9600 |
C8—H8D | 0.9600 | C15—H15F | 0.9600 |
C8—H8E | 0.9600 | N1—H1 | 0.857 (10) |
C8—H8F | 0.9600 | ||
O1—C1—N1 | 122.68 (12) | C14—C9—C10 | 118.76 (12) |
O1—C1—C2 | 120.86 (11) | C14—C9—N1 | 118.60 (11) |
N1—C1—C2 | 116.46 (10) | C10—C9—N1 | 122.62 (11) |
C3—C2—C7 | 118.98 (12) | C9—C10—C11 | 119.89 (12) |
C3—C2—C1 | 118.12 (10) | C9—C10—H10 | 120.1 |
C7—C2—C1 | 122.89 (11) | C11—C10—H10 | 120.1 |
C4—C3—C2 | 122.45 (11) | C12—C11—C10 | 122.29 (12) |
C4—C3—H3 | 118.8 | C12—C11—H11 | 118.9 |
C2—C3—H3 | 118.8 | C10—C11—H11 | 118.9 |
C3—C4—C5 | 117.15 (12) | C11—C12—C13 | 116.76 (13) |
C3—C4—C8 | 121.24 (12) | C11—C12—C15 | 121.96 (13) |
C5—C4—C8 | 121.59 (13) | C13—C12—C15 | 121.28 (13) |
C6—C5—C4 | 121.34 (13) | C14—C13—C12 | 121.79 (13) |
C6—C5—H5 | 119.3 | C14—C13—H13 | 119.1 |
C4—C5—H5 | 119.3 | C12—C13—H13 | 119.1 |
C5—C6—C7 | 120.80 (12) | C9—C14—C13 | 120.51 (12) |
C5—C6—H6 | 119.6 | C9—C14—H14 | 119.7 |
C7—C6—H6 | 119.6 | C13—C14—H14 | 119.7 |
C6—C7—C2 | 119.22 (12) | C12—C15—H15A | 109.5 |
C6—C7—H7 | 120.4 | C12—C15—H15B | 109.5 |
C2—C7—H7 | 120.4 | H15A—C15—H15B | 109.5 |
C4—C8—H8A | 109.5 | C12—C15—H15C | 109.5 |
C4—C8—H8B | 109.5 | H15A—C15—H15C | 109.5 |
H8A—C8—H8B | 109.5 | H15B—C15—H15C | 109.5 |
C4—C8—H8C | 109.5 | C12—C15—H15D | 109.5 |
H8A—C8—H8C | 109.5 | H15A—C15—H15D | 141.1 |
H8B—C8—H8C | 109.5 | H15B—C15—H15D | 56.3 |
C4—C8—H8D | 109.5 | H15C—C15—H15D | 56.3 |
H8A—C8—H8D | 141.1 | C12—C15—H15E | 109.5 |
H8B—C8—H8D | 56.3 | H15A—C15—H15E | 56.3 |
H8C—C8—H8D | 56.3 | H15B—C15—H15E | 141.1 |
C4—C8—H8E | 109.5 | H15C—C15—H15E | 56.3 |
H8A—C8—H8E | 56.3 | H15D—C15—H15E | 109.5 |
H8B—C8—H8E | 141.1 | C12—C15—H15F | 109.5 |
H8C—C8—H8E | 56.3 | H15A—C15—H15F | 56.3 |
H8D—C8—H8E | 109.5 | H15B—C15—H15F | 56.3 |
C4—C8—H8F | 109.5 | H15C—C15—H15F | 141.1 |
H8A—C8—H8F | 56.3 | H15D—C15—H15F | 109.5 |
H8B—C8—H8F | 56.3 | H15E—C15—H15F | 109.5 |
H8C—C8—H8F | 141.1 | C1—N1—C9 | 125.62 (10) |
H8D—C8—H8F | 109.5 | C1—N1—H1 | 116.5 (8) |
H8E—C8—H8F | 109.5 | C9—N1—H1 | 116.3 (8) |
O1—C1—C2—C3 | −29.29 (17) | C14—C9—C10—C11 | −0.67 (18) |
N1—C1—C2—C3 | 149.82 (11) | N1—C9—C10—C11 | −178.89 (12) |
O1—C1—C2—C7 | 149.86 (12) | C9—C10—C11—C12 | −0.1 (2) |
N1—C1—C2—C7 | −31.03 (17) | C10—C11—C12—C13 | 0.58 (19) |
C7—C2—C3—C4 | 1.41 (18) | C10—C11—C12—C15 | −179.75 (13) |
C1—C2—C3—C4 | −179.40 (11) | C11—C12—C13—C14 | −0.4 (2) |
C2—C3—C4—C5 | −2.49 (19) | C15—C12—C13—C14 | 179.96 (13) |
C2—C3—C4—C8 | 175.97 (11) | C10—C9—C14—C13 | 0.89 (19) |
C3—C4—C5—C6 | 1.58 (19) | N1—C9—C14—C13 | 179.17 (12) |
C8—C4—C5—C6 | −176.87 (13) | C12—C13—C14—C9 | −0.4 (2) |
C4—C5—C6—C7 | 0.4 (2) | O1—C1—N1—C9 | 3.39 (19) |
C5—C6—C7—C2 | −1.5 (2) | C2—C1—N1—C9 | −175.70 (11) |
C3—C2—C7—C6 | 0.64 (18) | C14—C9—N1—C1 | 139.30 (12) |
C1—C2—C7—C6 | −178.50 (11) | C10—C9—N1—C1 | −42.48 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 (1) | 2.30 (1) | 3.0910 (13) | 155 (1) |
Symmetry code: (i) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C15H15NO |
Mr | 225.28 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 5.2694 (2), 14.0877 (5), 16.5665 (9) |
β (°) | 92.588 (4) |
V (Å3) | 1228.54 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.32 × 0.21 × 0.12 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.976, 0.989 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18822, 2800, 1530 |
Rint | 0.037 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.088, 0.83 |
No. of reflections | 2800 |
No. of parameters | 158 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.13, −0.15 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2009), CrysAlis RED (Oxford Diffraction, 2009), SHELXS97 (Sheldrick, 2008), 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—H1···O1i | 0.857 (10) | 2.295 (11) | 3.0910 (13) | 154.5 (11) |
Symmetry code: (i) x+1, y, z. |
Acknowledgements
VV and JK thank the Grant Agencies for their financial support [VEGA Grant Agency of Slovak Ministry of Education 1/0679/11; Research and Development Agency of Slovakia (APVV-0202–10) and the Structural Funds, Interreg IIIA, for financial support in purchasing the diffractometer]. VZR thanks the University Grants Commission, Government of India, New Delhi, for award of an RFSMS 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
Brandenburg, K. (2002). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Gowda, B. T., Foro, S. & Fuess, H. (2007). Acta Cryst. E63, o2570. Web of Science CSD CrossRef IUCr Journals Google Scholar
Gowda, B. T., Jyothi, K., Paulus, H. & Fuess, H. (2003). Z. Naturforsch. Teil A, 58, 225–230. CAS Google Scholar
Gowda, B. T., Paulus, H. & Fuess, H. (2000). Z. Naturforsch. Teil A, 55, 711–720. CAS Google Scholar
Gowda, B. T. & Shetty, M. (2004). J. Phys. Org. Chem. 17, 848–864. Web of Science CrossRef CAS Google Scholar
Oxford Diffraction (2009). CrysAlis CCD and CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England. Google Scholar
Saeed, A., Arshad, M. & Simpson, J. (2010). Acta Cryst. E66, o2808–o2809. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Shetty, M. & Gowda, B. T. (2005). Z. Naturforsch.Teil A, 60, 113–120. CAS Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
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 amide and sulfonamide moieties are the constituents of many biologically significant compounds. As part of our studies on the substituent effects on the structures and other aspects of N-(aryl)-amides (Bowes et al., 2003; Gowda et al., 2000; Saeed et al., 2010), N-(aryl)-methanesulfonamides (Gowda et al., 2007), N-(aryl)-arylsulfonamides (Shetty & Gowda, 2005) and N-chloro-arylsulfonamides (Gowda & Shetty, 2004), in the present work, the crystal structure of 3-methyl-N-(4-methylphenyl)benzamide (I) has been determined (Fig.1).
In (I), the two aromatic rings make the dihedral angle of 70.06 (3)°, while the central amide core –NH—C(=O)– is twisted by 30.24 (4) ° and 40.16 (3)° out of the planes of the 3-methyphenyl and 4-methyphenyl rings, respectively. The methyl groups are disordered over two equally occupied positions.
Further, the meta-methyl group in the benzoyl ring is positioned syn to the C=O bond, while the N—H and C=O bonds in the C—NH—C(O)—C segment are anti to each other.
In the crystal structure, intermolecular N—H···O hydrogen bonds link the molecules into infinite chains running along the a-axis. Part of the crystal structure is shown in Fig. 2.