organic compounds
N-(3,4-Dimethylphenyl)-4-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
The title compound, C16H17NO, crystallizes with two molecules in the The conformation of the N—H bond is anti to the meta-methyl substituent in the aniline ring in the first molecule and syn in the second molecule. The dihedral angles between the two benzene rings are 52.6 (1) and 10.5 (1)° in the first and second molecules, respectively. Intermolecular N—H⋯O hydrogen bonds link the molecules into chains running along the b axis of the crystal.
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. (2008, 2009).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis Pro (Oxford Diffraction, 2009); cell CrysAlis Pro; data reduction: CrysAlis Pro; 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/S1600536809041257/bt5089sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809041257/bt5089Isup2.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.
H atoms were placed in calculated positions with N–H distances of 0.86 Å and C–H distances in the range 0.93–0.96 Å. All hydrogen atoms were constrained to ride on their parent atoms. The Uiso(H) values were set at 1.2Ueq(C aromatic, N) and 1.5 Ueq(Cmethyl). The U values of the atom pairs C23—C34 and C7—O1 were subject to a rigid bond restraint (DELU instruction), i.e. the components of the displacement parameters in the direction of the bond were restrained to be equal within an effective standard deviation 0.004. The C16 and C36 methyl group exhibit orientational disorder in the hydrogen atom positions. The two sets of methyl hydrogen atoms were refined with equal occupancy.
As part of a study of the substituent effects on the crystal structures of benzanilides (Gowda, Tokarčík et al., 2008, 2009), the structure of N-(3,4-dimethylphenyl)4-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-(3,4-dimethylphenyl)benzamide (Gowda, Tokarčík et al., 2008), N-(2,6-dimethylphenyl)4-methylbenzamide (Gowda, Tokarčík et al., 2009) and the parent benzanilide (Bowes et al., 2003).
The
of the cell in (I) contains two independent molecules. In the first molecule, the conformation of the N—H bond is anti to the meta-methyl-substituent in the disubstituted phenyl ring, while in the second molecule this conformation is syn. The dihedral angles between the two benzene rings are 52.6 (1)° and 10.5 (1)° in the first and second molecules, respectively. The central amido group –NH—C(=O)- forms dihedral angles of 22.2 (2)° and 31.2 (1)° with the benzoyl ring, and 30.6 (1)° and 25.5 (1)° with the disubstituted phenyl ring, in the two independent molecules.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 b-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, Tokarčík et al. (2008, 2009).
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).C16H17NO | Z = 4 |
Mr = 239.31 | F(000) = 512 |
Triclinic, P1 | Dx = 1.173 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.4186 (3) Å | Cell parameters from 13000 reflections |
b = 9.55915 (18) Å | θ = 2.2–29.3° |
c = 15.8813 (4) Å | µ = 0.07 mm−1 |
α = 74.361 (2)° | T = 295 K |
β = 79.696 (2)° | Block, colourless |
γ = 88.1582 (18)° | 0.51 × 0.41 × 0.22 mm |
V = 1354.51 (6) Å3 |
Oxford Diffraction Xcalibur with a Ruby Gemini detector diffractometer | 5130 independent reflections |
Graphite monochromator | 3880 reflections with I > 2σ(I) |
Detector resolution: 10.434 pixels mm-1 | Rint = 0.016 |
ω scans | θmax = 25.7°, θmin = 2.2° |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | h = −11→11 |
Tmin = 0.943, Tmax = 0.981 | k = −11→11 |
24655 measured reflections | l = −19→19 |
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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.126 | H-atom parameters constrained |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0705P)2 + 0.0954P] where P = (Fo2 + 2Fc2)/3 |
5130 reflections | (Δ/σ)max < 0.001 |
332 parameters | Δρmax = 0.19 e Å−3 |
2 restraints | Δρmin = −0.13 e Å−3 |
C16H17NO | γ = 88.1582 (18)° |
Mr = 239.31 | V = 1354.51 (6) Å3 |
Triclinic, P1 | Z = 4 |
a = 9.4186 (3) Å | Mo Kα radiation |
b = 9.55915 (18) Å | µ = 0.07 mm−1 |
c = 15.8813 (4) Å | T = 295 K |
α = 74.361 (2)° | 0.51 × 0.41 × 0.22 mm |
β = 79.696 (2)° |
Oxford Diffraction Xcalibur with a Ruby Gemini detector diffractometer | 5130 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | 3880 reflections with I > 2σ(I) |
Tmin = 0.943, Tmax = 0.981 | Rint = 0.016 |
24655 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 2 restraints |
wR(F2) = 0.126 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.19 e Å−3 |
5130 reflections | Δρmin = −0.13 e Å−3 |
332 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 | 0.10346 (14) | 0.30182 (13) | 0.21469 (9) | 0.0465 (3) | |
C2 | 0.11199 (14) | 0.43910 (14) | 0.15658 (9) | 0.0488 (3) | |
H2 | 0.1996 | 0.4899 | 0.1399 | 0.059* | |
C3 | −0.00845 (15) | 0.50305 (14) | 0.12241 (9) | 0.0502 (3) | |
C4 | −0.13954 (15) | 0.42676 (15) | 0.14676 (10) | 0.0536 (4) | |
C5 | −0.14410 (15) | 0.28750 (16) | 0.20304 (10) | 0.0571 (4) | |
H5 | −0.2303 | 0.2345 | 0.2184 | 0.069* | |
C6 | −0.02543 (15) | 0.22486 (15) | 0.23707 (10) | 0.0538 (4) | |
H6 | −0.0322 | 0.1313 | 0.2749 | 0.065* | |
C7 | 0.32980 (14) | 0.30304 (13) | 0.27355 (9) | 0.0483 (3) | |
C8 | 0.43956 (14) | 0.20801 (13) | 0.31706 (9) | 0.0464 (3) | |
C9 | 0.51877 (16) | 0.26395 (15) | 0.36612 (10) | 0.0569 (4) | |
H9 | 0.5038 | 0.3591 | 0.3695 | 0.068* | |
C10 | 0.61908 (16) | 0.18210 (16) | 0.40995 (10) | 0.0601 (4) | |
H10 | 0.6691 | 0.2219 | 0.4437 | 0.072* | |
C11 | 0.64706 (15) | 0.04163 (15) | 0.40481 (10) | 0.0549 (4) | |
C12 | 0.57052 (16) | −0.01379 (15) | 0.35434 (11) | 0.0603 (4) | |
H12 | 0.5887 | −0.1076 | 0.3491 | 0.072* | |
C13 | 0.46711 (16) | 0.06721 (14) | 0.31119 (10) | 0.0554 (4) | |
H13 | 0.416 | 0.027 | 0.2782 | 0.067* | |
C14 | 0.00537 (19) | 0.65361 (16) | 0.06181 (11) | 0.0678 (4) | |
H14A | 0.1056 | 0.6805 | 0.0424 | 0.102* | |
H14B | −0.0423 | 0.7201 | 0.0929 | 0.102* | |
H14C | −0.0384 | 0.6569 | 0.0112 | 0.102* | |
C15 | −0.27382 (18) | 0.4940 (2) | 0.11380 (14) | 0.0790 (5) | |
H15A | −0.287 | 0.5882 | 0.1243 | 0.118* | |
H15B | −0.3562 | 0.433 | 0.1449 | 0.118* | |
H15C | −0.2636 | 0.5034 | 0.0513 | 0.118* | |
C16 | 0.75981 (18) | −0.04604 (19) | 0.45196 (12) | 0.0738 (5) | |
H16A | 0.819 | 0.0174 | 0.4694 | 0.111* | 0.5 |
H16B | 0.819 | −0.094 | 0.4127 | 0.111* | 0.5 |
H16C | 0.7132 | −0.1173 | 0.5038 | 0.111* | 0.5 |
H16D | 0.7484 | −0.1466 | 0.4546 | 0.111* | 0.5 |
H16E | 0.7484 | −0.0353 | 0.5112 | 0.111* | 0.5 |
H16F | 0.8542 | −0.012 | 0.4201 | 0.111* | 0.5 |
N1 | 0.22333 (12) | 0.23479 (11) | 0.25316 (8) | 0.0522 (3) | |
H1N | 0.2277 | 0.1417 | 0.2643 | 0.063* | |
O1 | 0.33726 (11) | 0.43667 (9) | 0.25845 (7) | 0.0638 (3) | |
C21 | 0.74411 (15) | 0.18251 (13) | 0.82751 (10) | 0.0510 (3) | |
C22 | 0.64037 (16) | 0.22586 (15) | 0.88897 (10) | 0.0549 (4) | |
H22 | 0.5795 | 0.3012 | 0.8688 | 0.066* | |
C23 | 0.62458 (16) | 0.16037 (16) | 0.97944 (10) | 0.0585 (4) | |
C24 | 0.71696 (18) | 0.04716 (15) | 1.00955 (10) | 0.0626 (4) | |
C25 | 0.81944 (19) | 0.00514 (16) | 0.94732 (11) | 0.0651 (4) | |
H25 | 0.8804 | −0.0704 | 0.9671 | 0.078* | |
C26 | 0.83512 (17) | 0.07014 (15) | 0.85765 (11) | 0.0605 (4) | |
H26 | 0.9056 | 0.0393 | 0.8178 | 0.073* | |
C27 | 0.81041 (15) | 0.21391 (14) | 0.66478 (10) | 0.0513 (3) | |
C28 | 0.81065 (15) | 0.32107 (14) | 0.57693 (9) | 0.0490 (3) | |
C29 | 0.91799 (16) | 0.31421 (16) | 0.50555 (11) | 0.0575 (4) | |
H29 | 0.987 | 0.2423 | 0.5134 | 0.069* | |
C30 | 0.92379 (17) | 0.41186 (17) | 0.42359 (11) | 0.0621 (4) | |
H30 | 0.9981 | 0.4065 | 0.3774 | 0.074* | |
C31 | 0.82068 (18) | 0.51821 (16) | 0.40875 (10) | 0.0598 (4) | |
C32 | 0.71185 (18) | 0.52273 (16) | 0.47904 (10) | 0.0612 (4) | |
H32 | 0.6403 | 0.5918 | 0.4703 | 0.073* | |
C33 | 0.70702 (16) | 0.42699 (15) | 0.56190 (10) | 0.0567 (4) | |
H33 | 0.6334 | 0.4335 | 0.6082 | 0.068* | |
C34 | 0.5104 (2) | 0.2114 (2) | 1.04295 (12) | 0.0811 (5) | |
H34A | 0.5544 | 0.2391 | 1.0863 | 0.122* | |
H34B | 0.4413 | 0.1343 | 1.0724 | 0.122* | |
H34C | 0.4627 | 0.2934 | 1.0108 | 0.122* | |
C35 | 0.7065 (2) | −0.0265 (2) | 1.10752 (12) | 0.0877 (6) | |
H35A | 0.7735 | −0.1047 | 1.1154 | 0.132* | |
H35B | 0.6102 | −0.0641 | 1.1319 | 0.132* | |
H35C | 0.729 | 0.0427 | 1.1374 | 0.132* | |
C36 | 0.8276 (2) | 0.6250 (2) | 0.31868 (12) | 0.0885 (6) | |
H36A | 0.9105 | 0.6056 | 0.2788 | 0.133* | 0.5 |
H36B | 0.8349 | 0.722 | 0.324 | 0.133* | 0.5 |
H36C | 0.7418 | 0.6152 | 0.2959 | 0.133* | 0.5 |
H36D | 0.7476 | 0.6896 | 0.3203 | 0.133* | 0.5 |
H36E | 0.8232 | 0.5732 | 0.2751 | 0.133* | 0.5 |
H36F | 0.9164 | 0.68 | 0.3033 | 0.133* | 0.5 |
N2 | 0.75630 (13) | 0.26110 (11) | 0.73672 (8) | 0.0549 (3) | |
H2N | 0.7257 | 0.3488 | 0.7264 | 0.066* | |
O2 | 0.85769 (12) | 0.09069 (10) | 0.67005 (7) | 0.0667 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0471 (7) | 0.0423 (7) | 0.0512 (8) | 0.0065 (6) | −0.0090 (6) | −0.0149 (6) |
C2 | 0.0438 (7) | 0.0467 (7) | 0.0571 (8) | −0.0020 (6) | −0.0106 (6) | −0.0144 (6) |
C3 | 0.0564 (8) | 0.0446 (7) | 0.0529 (8) | 0.0033 (6) | −0.0142 (7) | −0.0158 (6) |
C4 | 0.0478 (8) | 0.0568 (8) | 0.0618 (9) | 0.0048 (6) | −0.0153 (7) | −0.0223 (7) |
C5 | 0.0457 (8) | 0.0577 (8) | 0.0681 (10) | −0.0055 (7) | −0.0070 (7) | −0.0183 (7) |
C6 | 0.0537 (8) | 0.0452 (7) | 0.0590 (9) | −0.0006 (6) | −0.0042 (7) | −0.0115 (6) |
C7 | 0.0518 (8) | 0.0403 (6) | 0.0518 (8) | 0.0060 (6) | −0.0073 (6) | −0.0123 (6) |
C8 | 0.0447 (7) | 0.0406 (7) | 0.0491 (8) | 0.0056 (6) | −0.0035 (6) | −0.0078 (6) |
C9 | 0.0590 (9) | 0.0468 (7) | 0.0689 (10) | 0.0088 (7) | −0.0138 (7) | −0.0215 (7) |
C10 | 0.0569 (9) | 0.0615 (9) | 0.0638 (10) | 0.0040 (7) | −0.0158 (7) | −0.0171 (7) |
C11 | 0.0454 (8) | 0.0547 (8) | 0.0542 (8) | 0.0054 (6) | −0.0045 (6) | −0.0004 (7) |
C12 | 0.0628 (9) | 0.0410 (7) | 0.0742 (10) | 0.0126 (7) | −0.0124 (8) | −0.0114 (7) |
C13 | 0.0561 (8) | 0.0461 (7) | 0.0661 (9) | 0.0083 (6) | −0.0155 (7) | −0.0162 (7) |
C14 | 0.0778 (11) | 0.0526 (8) | 0.0736 (11) | 0.0044 (8) | −0.0314 (9) | −0.0069 (8) |
C15 | 0.0593 (10) | 0.0817 (11) | 0.1008 (14) | 0.0088 (9) | −0.0308 (9) | −0.0226 (10) |
C16 | 0.0613 (10) | 0.0733 (10) | 0.0743 (11) | 0.0121 (8) | −0.0174 (8) | 0.0035 (9) |
N1 | 0.0549 (7) | 0.0350 (5) | 0.0658 (8) | 0.0044 (5) | −0.0144 (6) | −0.0101 (5) |
O1 | 0.0730 (7) | 0.0377 (4) | 0.0875 (8) | 0.0087 (5) | −0.0319 (6) | −0.0175 (5) |
C21 | 0.0560 (8) | 0.0375 (6) | 0.0605 (9) | −0.0002 (6) | −0.0165 (7) | −0.0106 (6) |
C22 | 0.0542 (8) | 0.0464 (7) | 0.0659 (10) | 0.0028 (6) | −0.0163 (7) | −0.0148 (7) |
C23 | 0.0608 (9) | 0.0524 (8) | 0.0644 (10) | −0.0087 (7) | −0.0128 (7) | −0.0168 (7) |
C24 | 0.0765 (10) | 0.0475 (8) | 0.0630 (10) | −0.0104 (7) | −0.0211 (8) | −0.0063 (7) |
C25 | 0.0776 (11) | 0.0451 (8) | 0.0720 (11) | 0.0081 (7) | −0.0262 (9) | −0.0072 (7) |
C26 | 0.0673 (10) | 0.0451 (7) | 0.0689 (10) | 0.0092 (7) | −0.0175 (8) | −0.0124 (7) |
C27 | 0.0501 (8) | 0.0401 (7) | 0.0668 (9) | 0.0054 (6) | −0.0163 (7) | −0.0163 (6) |
C28 | 0.0500 (8) | 0.0417 (7) | 0.0604 (9) | 0.0033 (6) | −0.0162 (7) | −0.0185 (6) |
C29 | 0.0523 (8) | 0.0555 (8) | 0.0726 (10) | 0.0107 (7) | −0.0161 (7) | −0.0287 (8) |
C30 | 0.0642 (10) | 0.0676 (9) | 0.0596 (9) | −0.0015 (8) | −0.0054 (8) | −0.0291 (8) |
C31 | 0.0743 (10) | 0.0550 (8) | 0.0552 (9) | 0.0011 (7) | −0.0147 (8) | −0.0215 (7) |
C32 | 0.0705 (10) | 0.0540 (8) | 0.0600 (9) | 0.0164 (7) | −0.0172 (8) | −0.0152 (7) |
C33 | 0.0595 (9) | 0.0520 (8) | 0.0577 (9) | 0.0122 (7) | −0.0082 (7) | −0.0157 (7) |
C34 | 0.0821 (12) | 0.0884 (12) | 0.0752 (12) | −0.0012 (10) | −0.0092 (9) | −0.0289 (10) |
C35 | 0.1162 (16) | 0.0751 (11) | 0.0675 (11) | −0.0026 (11) | −0.0260 (11) | −0.0052 (9) |
C36 | 0.1194 (16) | 0.0842 (12) | 0.0585 (11) | 0.0085 (11) | −0.0133 (10) | −0.0158 (9) |
N2 | 0.0663 (8) | 0.0392 (6) | 0.0596 (7) | 0.0121 (5) | −0.0157 (6) | −0.0123 (5) |
O2 | 0.0815 (7) | 0.0407 (5) | 0.0802 (7) | 0.0160 (5) | −0.0193 (6) | −0.0187 (5) |
C1—C6 | 1.3796 (19) | C21—C26 | 1.3885 (19) |
C1—C2 | 1.3812 (18) | C21—C22 | 1.389 (2) |
C1—N1 | 1.4309 (16) | C21—N2 | 1.4209 (18) |
C2—C3 | 1.3970 (18) | C22—C23 | 1.387 (2) |
C2—H2 | 0.93 | C22—H22 | 0.93 |
C3—C4 | 1.393 (2) | C23—C24 | 1.402 (2) |
C3—C14 | 1.495 (2) | C23—C34 | 1.501 (2) |
C4—C5 | 1.386 (2) | C24—C25 | 1.385 (2) |
C4—C15 | 1.513 (2) | C24—C35 | 1.512 (2) |
C5—C6 | 1.378 (2) | C25—C26 | 1.375 (2) |
C5—H5 | 0.93 | C25—H25 | 0.93 |
C6—H6 | 0.93 | C26—H26 | 0.93 |
C7—O1 | 1.2364 (15) | C27—O2 | 1.2326 (15) |
C7—N1 | 1.3448 (17) | C27—N2 | 1.3502 (18) |
C7—C8 | 1.4927 (18) | C27—C28 | 1.491 (2) |
C8—C9 | 1.3812 (19) | C28—C33 | 1.3872 (19) |
C8—C13 | 1.3871 (18) | C28—C29 | 1.392 (2) |
C9—C10 | 1.372 (2) | C29—C30 | 1.375 (2) |
C9—H9 | 0.93 | C29—H29 | 0.93 |
C10—C11 | 1.381 (2) | C30—C31 | 1.386 (2) |
C10—H10 | 0.93 | C30—H30 | 0.93 |
C11—C12 | 1.380 (2) | C31—C32 | 1.383 (2) |
C11—C16 | 1.510 (2) | C31—C36 | 1.508 (2) |
C12—C13 | 1.3863 (19) | C32—C33 | 1.380 (2) |
C12—H12 | 0.93 | C32—H32 | 0.93 |
C13—H13 | 0.93 | C33—H33 | 0.93 |
C14—H14A | 0.96 | C34—H34A | 0.96 |
C14—H14B | 0.96 | C34—H34B | 0.96 |
C14—H14C | 0.96 | C34—H34C | 0.96 |
C15—H15A | 0.96 | C35—H35A | 0.96 |
C15—H15B | 0.96 | C35—H35B | 0.96 |
C15—H15C | 0.96 | C35—H35C | 0.96 |
C16—H16A | 0.96 | C36—H36A | 0.96 |
C16—H16B | 0.96 | C36—H36B | 0.96 |
C16—H16C | 0.96 | C36—H36C | 0.96 |
C16—H16D | 0.96 | C36—H36D | 0.96 |
C16—H16E | 0.96 | C36—H36E | 0.96 |
C16—H16F | 0.96 | C36—H36F | 0.96 |
N1—H1N | 0.86 | N2—H2N | 0.86 |
C6—C1—C2 | 119.20 (12) | C26—C21—C22 | 118.95 (14) |
C6—C1—N1 | 118.01 (11) | C26—C21—N2 | 123.14 (13) |
C2—C1—N1 | 122.79 (12) | C22—C21—N2 | 117.83 (12) |
C1—C2—C3 | 121.25 (12) | C23—C22—C21 | 122.13 (13) |
C1—C2—H2 | 119.4 | C23—C22—H22 | 118.9 |
C3—C2—H2 | 119.4 | C21—C22—H22 | 118.9 |
C4—C3—C2 | 119.52 (12) | C22—C23—C24 | 118.70 (14) |
C4—C3—C14 | 121.29 (13) | C22—C23—C34 | 119.93 (14) |
C2—C3—C14 | 119.17 (13) | C24—C23—C34 | 121.37 (15) |
C5—C4—C3 | 118.06 (12) | C25—C24—C23 | 118.36 (14) |
C5—C4—C15 | 120.72 (14) | C25—C24—C35 | 120.60 (15) |
C3—C4—C15 | 121.22 (13) | C23—C24—C35 | 121.03 (16) |
C6—C5—C4 | 122.34 (13) | C26—C25—C24 | 122.92 (14) |
C6—C5—H5 | 118.8 | C26—C25—H25 | 118.5 |
C4—C5—H5 | 118.8 | C24—C25—H25 | 118.5 |
C5—C6—C1 | 119.57 (13) | C25—C26—C21 | 118.94 (15) |
C5—C6—H6 | 120.2 | C25—C26—H26 | 120.5 |
C1—C6—H6 | 120.2 | C21—C26—H26 | 120.5 |
O1—C7—N1 | 122.74 (12) | O2—C27—N2 | 122.99 (13) |
O1—C7—C8 | 121.06 (12) | O2—C27—C28 | 121.21 (13) |
N1—C7—C8 | 116.20 (11) | N2—C27—C28 | 115.80 (11) |
C9—C8—C13 | 117.98 (12) | C33—C28—C29 | 117.72 (13) |
C9—C8—C7 | 117.90 (11) | C33—C28—C27 | 123.19 (13) |
C13—C8—C7 | 124.11 (12) | C29—C28—C27 | 119.08 (12) |
C10—C9—C8 | 121.37 (13) | C30—C29—C28 | 121.18 (13) |
C10—C9—H9 | 119.3 | C30—C29—H29 | 119.4 |
C8—C9—H9 | 119.3 | C28—C29—H29 | 119.4 |
C9—C10—C11 | 121.13 (14) | C29—C30—C31 | 121.05 (14) |
C9—C10—H10 | 119.4 | C29—C30—H30 | 119.5 |
C11—C10—H10 | 119.4 | C31—C30—H30 | 119.5 |
C12—C11—C10 | 117.77 (13) | C32—C31—C30 | 117.79 (14) |
C12—C11—C16 | 121.72 (14) | C32—C31—C36 | 121.41 (15) |
C10—C11—C16 | 120.50 (15) | C30—C31—C36 | 120.79 (15) |
C11—C12—C13 | 121.47 (13) | C33—C32—C31 | 121.46 (14) |
C11—C12—H12 | 119.3 | C33—C32—H32 | 119.3 |
C13—C12—H12 | 119.3 | C31—C32—H32 | 119.3 |
C12—C13—C8 | 120.26 (13) | C32—C33—C28 | 120.77 (14) |
C12—C13—H13 | 119.9 | C32—C33—H33 | 119.6 |
C8—C13—H13 | 119.9 | C28—C33—H33 | 119.6 |
C3—C14—H14A | 109.5 | C23—C34—H34A | 109.5 |
C3—C14—H14B | 109.5 | C23—C34—H34B | 109.5 |
H14A—C14—H14B | 109.5 | H34A—C34—H34B | 109.5 |
C3—C14—H14C | 109.5 | C23—C34—H34C | 109.5 |
H14A—C14—H14C | 109.5 | H34A—C34—H34C | 109.5 |
H14B—C14—H14C | 109.5 | H34B—C34—H34C | 109.5 |
C4—C15—H15A | 109.5 | C24—C35—H35A | 109.5 |
C4—C15—H15B | 109.5 | C24—C35—H35B | 109.5 |
H15A—C15—H15B | 109.5 | H35A—C35—H35B | 109.5 |
C4—C15—H15C | 109.5 | C24—C35—H35C | 109.5 |
H15A—C15—H15C | 109.5 | H35A—C35—H35C | 109.5 |
H15B—C15—H15C | 109.5 | H35B—C35—H35C | 109.5 |
C11—C16—H16A | 109.5 | C31—C36—H36A | 109.5 |
C11—C16—H16B | 109.5 | C31—C36—H36B | 109.5 |
H16A—C16—H16B | 109.5 | H36A—C36—H36B | 109.5 |
C11—C16—H16C | 109.5 | C31—C36—H36C | 109.5 |
H16A—C16—H16C | 109.5 | H36A—C36—H36C | 109.5 |
H16B—C16—H16C | 109.5 | H36B—C36—H36C | 109.5 |
C11—C16—H16D | 109.5 | C31—C36—H36D | 109.5 |
H16A—C16—H16D | 141.1 | H36A—C36—H36D | 141.1 |
H16B—C16—H16D | 56.3 | H36B—C36—H36D | 56.3 |
H16C—C16—H16D | 56.3 | H36C—C36—H36D | 56.3 |
C11—C16—H16E | 109.5 | C31—C36—H36E | 109.5 |
H16A—C16—H16E | 56.3 | H36A—C36—H36E | 56.3 |
H16B—C16—H16E | 141.1 | H36B—C36—H36E | 141.1 |
H16C—C16—H16E | 56.3 | H36C—C36—H36E | 56.3 |
H16D—C16—H16E | 109.5 | H36D—C36—H36E | 109.5 |
C11—C16—H16F | 109.5 | C31—C36—H36F | 109.5 |
H16A—C16—H16F | 56.3 | H36A—C36—H36F | 56.3 |
H16B—C16—H16F | 56.3 | H36B—C36—H36F | 56.3 |
H16C—C16—H16F | 141.1 | H36C—C36—H36F | 141.1 |
H16D—C16—H16F | 109.5 | H36D—C36—H36F | 109.5 |
H16E—C16—H16F | 109.5 | H36E—C36—H36F | 109.5 |
C7—N1—C1 | 126.38 (10) | C27—N2—C21 | 127.45 (11) |
C7—N1—H1N | 116.8 | C27—N2—H2N | 116.3 |
C1—N1—H1N | 116.8 | C21—N2—H2N | 116.3 |
C6—C1—C2—C3 | 2.1 (2) | C26—C21—C22—C23 | −0.1 (2) |
N1—C1—C2—C3 | −177.99 (11) | N2—C21—C22—C23 | −177.00 (12) |
C1—C2—C3—C4 | −0.5 (2) | C21—C22—C23—C24 | 0.3 (2) |
C1—C2—C3—C14 | 178.23 (13) | C21—C22—C23—C34 | −179.90 (14) |
C2—C3—C4—C5 | −1.4 (2) | C22—C23—C24—C25 | −0.4 (2) |
C14—C3—C4—C5 | 179.87 (14) | C34—C23—C24—C25 | 179.74 (15) |
C2—C3—C4—C15 | 177.87 (14) | C22—C23—C24—C35 | 178.91 (14) |
C14—C3—C4—C15 | −0.8 (2) | C34—C23—C24—C35 | −0.9 (2) |
C3—C4—C5—C6 | 1.8 (2) | C23—C24—C25—C26 | 0.5 (2) |
C15—C4—C5—C6 | −177.47 (14) | C35—C24—C25—C26 | −178.86 (15) |
C4—C5—C6—C1 | −0.3 (2) | C24—C25—C26—C21 | −0.3 (2) |
C2—C1—C6—C5 | −1.7 (2) | C22—C21—C26—C25 | 0.2 (2) |
N1—C1—C6—C5 | 178.37 (12) | N2—C21—C26—C25 | 176.86 (13) |
O1—C7—C8—C9 | 21.3 (2) | O2—C27—C28—C33 | 148.70 (14) |
N1—C7—C8—C9 | −157.96 (13) | N2—C27—C28—C33 | −31.60 (19) |
O1—C7—C8—C13 | −158.56 (14) | O2—C27—C28—C29 | −30.15 (19) |
N1—C7—C8—C13 | 22.2 (2) | N2—C27—C28—C29 | 149.55 (13) |
C13—C8—C9—C10 | −1.8 (2) | C33—C28—C29—C30 | 2.0 (2) |
C7—C8—C9—C10 | 178.34 (13) | C27—C28—C29—C30 | −179.12 (13) |
C8—C9—C10—C11 | 1.6 (2) | C28—C29—C30—C31 | −1.6 (2) |
C9—C10—C11—C12 | −0.2 (2) | C29—C30—C31—C32 | 0.0 (2) |
C9—C10—C11—C16 | 178.81 (14) | C29—C30—C31—C36 | −179.97 (14) |
C10—C11—C12—C13 | −1.0 (2) | C30—C31—C32—C33 | 1.4 (2) |
C16—C11—C12—C13 | 180.00 (14) | C36—C31—C32—C33 | −178.70 (16) |
C11—C12—C13—C8 | 0.8 (2) | C31—C32—C33—C28 | −1.0 (2) |
C9—C8—C13—C12 | 0.6 (2) | C29—C28—C33—C32 | −0.6 (2) |
C7—C8—C13—C12 | −179.55 (13) | C27—C28—C33—C32 | −179.50 (13) |
O1—C7—N1—C1 | −1.9 (2) | O2—C27—N2—C21 | 0.1 (2) |
C8—C7—N1—C1 | 177.33 (12) | C28—C27—N2—C21 | −179.59 (12) |
C6—C1—N1—C7 | −148.38 (14) | C26—C21—N2—C27 | 27.1 (2) |
C2—C1—N1—C7 | 31.7 (2) | C22—C21—N2—C27 | −156.12 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O2i | 0.86 | 2.29 | 3.0860 (14) | 154 |
N2—H2N···O1ii | 0.86 | 2.18 | 3.0101 (14) | 162 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C16H17NO |
Mr | 239.31 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 295 |
a, b, c (Å) | 9.4186 (3), 9.55915 (18), 15.8813 (4) |
α, β, γ (°) | 74.361 (2), 79.696 (2), 88.1582 (18) |
V (Å3) | 1354.51 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.07 |
Crystal size (mm) | 0.51 × 0.41 × 0.22 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur with a Ruby Gemini detector |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.943, 0.981 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 24655, 5130, 3880 |
Rint | 0.016 |
(sin θ/λ)max (Å−1) | 0.609 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.126, 1.09 |
No. of reflections | 5130 |
No. of parameters | 332 |
No. of restraints | 2 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.19, −0.13 |
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···O2i | 0.86 | 2.29 | 3.0860 (14) | 154 |
N2—H2N···O1ii | 0.86 | 2.18 | 3.0101 (14) | 162 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1, −y+1, −z+1. |
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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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.
As part of a study of the substituent effects on the crystal structures of benzanilides (Gowda, Tokarčík et al., 2008, 2009), the structure of N-(3,4-dimethylphenyl)4-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-(3,4-dimethylphenyl)benzamide (Gowda, Tokarčík et al., 2008), N-(2,6-dimethylphenyl)4-methylbenzamide (Gowda, Tokarčík et al., 2009) and the parent benzanilide (Bowes et al., 2003).
The asymmetric unit of the cell in (I) contains two independent molecules. In the first molecule, the conformation of the N—H bond is anti to the meta-methyl-substituent in the disubstituted phenyl ring, while in the second molecule this conformation is syn. The dihedral angles between the two benzene rings are 52.6 (1)° and 10.5 (1)° in the first and second molecules, respectively. The central amido group –NH—C(=O)- forms dihedral angles of 22.2 (2)° and 31.2 (1)° with the benzoyl ring, and 30.6 (1)° and 25.5 (1)° with the disubstituted phenyl ring, in the two independent molecules.
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 b-axis is shown in Fig. 2.