organic compounds
N-(2,4-Dichlorophenyl)benzamide
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 conformations of the N—H and C=O bonds in the structure of the title compound, C13H9Cl2NO, are anti to each other, similar to that observed in N-phenylbenzamide, N-(2-chlorophenyl)benzamide, N-(4-chlorophenyl)benzamide, N-(2,3-dichlorophenyl)benzamide, N-(2,6-dichlorophenyl)benzamide and other benzanilides. The amide –NHCO– group forms a dihedral angle of 33.0 (2)° with the benzoyl ring, while the rings are almost coplanar, making a dihedral angle of 2.6 (2)°). The molecules are linked by N—H⋯O hydrogen bonds into infinite chains running along the b axis.
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis CCD (Oxford Diffraction, 2007); cell CrysAlis RED (Oxford Diffraction, 2007); data reduction: CrysAlis RED; 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, 2003) and WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536808012385/om2232sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808012385/om2232Isup2.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 were obtained from an ethanolic solution and used for X-ray diffraction studies at room temperature.
H atoms attached to C atoms were placed in calculated positions and subsequently treated as riding with C–H distance 0.93 Å. H atom of the amide group was refined with the N—H distance restrained to 0.81 (2) Å. The Uiso(H) values were set at 1.2 Ueq(C,N).
Data collection: CrysAlis CCD (Oxford Diffraction, 2007); cell
CrysAlis RED (Oxford Diffraction, 2007); data reduction: CrysAlis RED (Oxford Diffraction, 2007); 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, 2003) and WinGX (Farrugia, 1999).C13H9Cl2NO | F(000) = 544 |
Mr = 266.11 | Dx = 1.446 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2675 reflections |
a = 11.7388 (6) Å | θ = 3.5–29.1° |
b = 4.7475 (2) Å | µ = 0.51 mm−1 |
c = 22.8630 (11) Å | T = 295 K |
β = 106.360 (4)° | Needle, colorless |
V = 1222.56 (10) Å3 | 0.33 × 0.06 × 0.03 mm |
Z = 4 |
Oxford Diffraction Xcalibur diffractometer | 2311 independent reflections |
Graphite monochromator | 1209 reflections with I > 2σ(I) |
Detector resolution: 10.434 pixels mm-1 | Rint = 0.060 |
ω scans with κ offsets | θmax = 25.7°, θmin = 5.1° |
Absorption correction: analytical [CrysAlis RED (Oxford Diffraction, 2007), based on expressions derived by Clark & Reid (1995)] | h = −14→14 |
Tmin = 0.905, Tmax = 0.987 | k = −5→5 |
11465 measured reflections | l = −27→27 |
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)] = 0.037 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.089 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | [exp(3(sinθ/λ)2)]/ [σ2(Fo2) + (0.0389P)2] where P = 0.33333Fo2 + 0.66667Fc2 |
2311 reflections | (Δ/σ)max = 0.002 |
157 parameters | Δρmax = 0.21 e Å−3 |
1 restraint | Δρmin = −0.16 e Å−3 |
C13H9Cl2NO | V = 1222.56 (10) Å3 |
Mr = 266.11 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.7388 (6) Å | µ = 0.51 mm−1 |
b = 4.7475 (2) Å | T = 295 K |
c = 22.8630 (11) Å | 0.33 × 0.06 × 0.03 mm |
β = 106.360 (4)° |
Oxford Diffraction Xcalibur diffractometer | 2311 independent reflections |
Absorption correction: analytical [CrysAlis RED (Oxford Diffraction, 2007), based on expressions derived by Clark & Reid (1995)] | 1209 reflections with I > 2σ(I) |
Tmin = 0.905, Tmax = 0.987 | Rint = 0.060 |
11465 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 1 restraint |
wR(F2) = 0.089 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.21 e Å−3 |
2311 reflections | Δρmin = −0.16 e Å−3 |
157 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 | ||
C1 | 1.0522 (2) | 0.6218 (5) | 0.12848 (10) | 0.0496 (6) | |
C2 | 1.1434 (2) | 0.5105 (5) | 0.18272 (10) | 0.0528 (6) | |
C3 | 1.2566 (3) | 0.6149 (6) | 0.19551 (12) | 0.0702 (7) | |
H3 | 1.2743 | 0.7524 | 0.1704 | 0.084* | |
C4 | 1.3453 (3) | 0.5182 (7) | 0.24537 (14) | 0.0849 (9) | |
H4 | 1.4223 | 0.5874 | 0.2533 | 0.102* | |
C5 | 1.3184 (4) | 0.3218 (8) | 0.28242 (14) | 0.0893 (10) | |
H5 | 1.3774 | 0.2567 | 0.316 | 0.107* | |
C6 | 1.2056 (4) | 0.2184 (6) | 0.27103 (12) | 0.0877 (10) | |
H6 | 1.1882 | 0.0849 | 0.297 | 0.105* | |
C7 | 1.1172 (3) | 0.3122 (5) | 0.22083 (11) | 0.0677 (7) | |
H7 | 1.0405 | 0.2413 | 0.213 | 0.081* | |
C8 | 0.8686 (2) | 0.4974 (4) | 0.04960 (9) | 0.0457 (6) | |
C9 | 0.8747 (2) | 0.6864 (4) | 0.00429 (10) | 0.0518 (6) | |
H9 | 0.9462 | 0.7762 | 0.0064 | 0.062* | |
C10 | 0.7767 (2) | 0.7427 (5) | −0.04370 (10) | 0.0597 (7) | |
H10 | 0.7814 | 0.8708 | −0.0737 | 0.072* | |
C11 | 0.6721 (2) | 0.6086 (6) | −0.04695 (11) | 0.0611 (7) | |
C12 | 0.6630 (2) | 0.4146 (5) | −0.00389 (11) | 0.0610 (7) | |
H12 | 0.5919 | 0.3208 | −0.0071 | 0.073* | |
C13 | 0.7617 (2) | 0.3632 (5) | 0.04400 (10) | 0.0510 (6) | |
N1 | 0.96721 (19) | 0.4383 (4) | 0.09966 (8) | 0.0513 (5) | |
H1N | 0.972 (2) | 0.276 (4) | 0.1100 (10) | 0.062* | |
O1 | 1.05520 (15) | 0.8645 (3) | 0.11131 (7) | 0.0687 (5) | |
Cl1 | 0.75028 (6) | 0.12644 (14) | 0.09989 (3) | 0.0705 (2) | |
Cl2 | 0.54660 (7) | 0.6883 (2) | −0.10654 (3) | 0.1010 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0601 (15) | 0.0357 (14) | 0.0511 (13) | 0.0050 (13) | 0.0128 (12) | −0.0020 (11) |
C2 | 0.0646 (18) | 0.0412 (13) | 0.0492 (13) | 0.0076 (13) | 0.0102 (12) | −0.0042 (11) |
C3 | 0.0695 (19) | 0.0686 (18) | 0.0653 (17) | 0.0051 (16) | 0.0073 (14) | 0.0003 (13) |
C4 | 0.071 (2) | 0.099 (2) | 0.073 (2) | 0.0125 (19) | 0.0002 (17) | −0.0152 (19) |
C5 | 0.100 (3) | 0.089 (2) | 0.0600 (19) | 0.036 (2) | −0.0077 (18) | −0.0101 (17) |
C6 | 0.131 (3) | 0.072 (2) | 0.0491 (16) | 0.016 (2) | 0.0083 (18) | 0.0054 (14) |
C7 | 0.093 (2) | 0.0550 (17) | 0.0504 (14) | 0.0032 (15) | 0.0121 (14) | 0.0012 (12) |
C8 | 0.0541 (16) | 0.0349 (12) | 0.0482 (13) | 0.0057 (12) | 0.0146 (11) | −0.0021 (11) |
C9 | 0.0556 (15) | 0.0437 (14) | 0.0557 (14) | 0.0016 (12) | 0.0150 (12) | 0.0043 (11) |
C10 | 0.0700 (19) | 0.0588 (15) | 0.0510 (14) | 0.0114 (14) | 0.0184 (13) | 0.0099 (12) |
C11 | 0.0547 (17) | 0.0721 (17) | 0.0526 (14) | 0.0143 (15) | 0.0086 (12) | −0.0020 (14) |
C12 | 0.0549 (16) | 0.0659 (17) | 0.0645 (16) | −0.0021 (13) | 0.0205 (13) | −0.0069 (14) |
C13 | 0.0566 (16) | 0.0454 (13) | 0.0541 (14) | 0.0010 (13) | 0.0204 (12) | −0.0024 (11) |
N1 | 0.0636 (13) | 0.0342 (11) | 0.0531 (11) | 0.0008 (11) | 0.0117 (10) | 0.0065 (9) |
O1 | 0.0800 (12) | 0.0347 (10) | 0.0776 (11) | −0.0009 (9) | −0.0003 (9) | 0.0063 (8) |
Cl1 | 0.0783 (5) | 0.0633 (4) | 0.0772 (4) | −0.0034 (4) | 0.0339 (4) | 0.0109 (3) |
Cl2 | 0.0706 (5) | 0.1426 (8) | 0.0752 (5) | 0.0183 (5) | −0.0033 (4) | 0.0119 (4) |
C1—O1 | 1.221 (2) | C8—C13 | 1.380 (3) |
C1—N1 | 1.348 (3) | C8—C9 | 1.388 (3) |
C1—C2 | 1.488 (3) | C8—N1 | 1.408 (3) |
C2—C3 | 1.371 (3) | C9—C10 | 1.374 (3) |
C2—C7 | 1.375 (3) | C9—H9 | 0.93 |
C3—C4 | 1.387 (4) | C10—C11 | 1.366 (3) |
C3—H3 | 0.93 | C10—H10 | 0.93 |
C4—C5 | 1.356 (4) | C11—C12 | 1.374 (3) |
C4—H4 | 0.93 | C11—Cl2 | 1.743 (2) |
C5—C6 | 1.366 (5) | C12—C13 | 1.374 (3) |
C5—H5 | 0.93 | C12—H12 | 0.93 |
C6—C7 | 1.387 (4) | C13—Cl1 | 1.735 (2) |
C6—H6 | 0.93 | N1—H1N | 0.805 (16) |
C7—H7 | 0.93 | ||
O1—C1—N1 | 122.5 (2) | C13—C8—C9 | 117.8 (2) |
O1—C1—C2 | 121.6 (2) | C13—C8—N1 | 120.1 (2) |
N1—C1—C2 | 115.9 (2) | C9—C8—N1 | 122.2 (2) |
C3—C2—C7 | 119.3 (2) | C10—C9—C8 | 120.9 (2) |
C3—C2—C1 | 118.4 (2) | C10—C9—H9 | 119.5 |
C7—C2—C1 | 122.3 (2) | C8—C9—H9 | 119.5 |
C2—C3—C4 | 120.9 (3) | C11—C10—C9 | 119.4 (2) |
C2—C3—H3 | 119.6 | C11—C10—H10 | 120.3 |
C4—C3—H3 | 119.6 | C9—C10—H10 | 120.3 |
C5—C4—C3 | 119.2 (3) | C10—C11—C12 | 121.6 (2) |
C5—C4—H4 | 120.4 | C10—C11—Cl2 | 119.3 (2) |
C3—C4—H4 | 120.4 | C12—C11—Cl2 | 119.1 (2) |
C4—C5—C6 | 120.8 (3) | C13—C12—C11 | 118.1 (2) |
C4—C5—H5 | 119.6 | C13—C12—H12 | 120.9 |
C6—C5—H5 | 119.6 | C11—C12—H12 | 120.9 |
C5—C6—C7 | 120.1 (3) | C12—C13—C8 | 122.2 (2) |
C5—C6—H6 | 119.9 | C12—C13—Cl1 | 118.62 (19) |
C7—C6—H6 | 119.9 | C8—C13—Cl1 | 119.18 (17) |
C2—C7—C6 | 119.7 (3) | C1—N1—C8 | 126.45 (18) |
C2—C7—H7 | 120.2 | C1—N1—H1N | 119.5 (18) |
C6—C7—H7 | 120.2 | C8—N1—H1N | 114.0 (18) |
O1—C1—C2—C3 | −31.9 (3) | C9—C10—C11—C12 | −1.2 (4) |
N1—C1—C2—C3 | 147.8 (2) | C9—C10—C11—Cl2 | 178.01 (17) |
O1—C1—C2—C7 | 146.7 (2) | C10—C11—C12—C13 | 1.7 (4) |
N1—C1—C2—C7 | −33.6 (3) | Cl2—C11—C12—C13 | −177.46 (18) |
C7—C2—C3—C4 | 1.6 (4) | C11—C12—C13—C8 | −0.6 (3) |
C1—C2—C3—C4 | −179.8 (2) | C11—C12—C13—Cl1 | 178.13 (19) |
C2—C3—C4—C5 | −1.3 (4) | C9—C8—C13—C12 | −1.0 (3) |
C3—C4—C5—C6 | 0.2 (4) | N1—C8—C13—C12 | 179.8 (2) |
C4—C5—C6—C7 | 0.5 (4) | C9—C8—C13—Cl1 | −179.73 (16) |
C3—C2—C7—C6 | −0.8 (4) | N1—C8—C13—Cl1 | 1.0 (3) |
C1—C2—C7—C6 | −179.4 (2) | O1—C1—N1—C8 | −3.9 (4) |
C5—C6—C7—C2 | −0.2 (4) | C2—C1—N1—C8 | 176.4 (2) |
C13—C8—C9—C10 | 1.6 (3) | C13—C8—N1—C1 | −145.5 (2) |
N1—C8—C9—C10 | −179.2 (2) | C9—C8—N1—C1 | 35.3 (3) |
C8—C9—C10—C11 | −0.5 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.81 (2) | 2.18 (2) | 2.899 (2) | 149 (2) |
Symmetry code: (i) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C13H9Cl2NO |
Mr | 266.11 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 11.7388 (6), 4.7475 (2), 22.8630 (11) |
β (°) | 106.360 (4) |
V (Å3) | 1222.56 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.51 |
Crystal size (mm) | 0.33 × 0.06 × 0.03 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer |
Absorption correction | Analytical [CrysAlis RED (Oxford Diffraction, 2007), based on expressions derived by Clark & Reid (1995)] |
Tmin, Tmax | 0.905, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11465, 2311, 1209 |
Rint | 0.060 |
(sin θ/λ)max (Å−1) | 0.610 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.089, 1.06 |
No. of reflections | 2311 |
No. of parameters | 157 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.21, −0.16 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2007), CrysAlis RED (Oxford Diffraction, 2007), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2002), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2003) and WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.805 (16) | 2.178 (19) | 2.899 (2) | 149 (2) |
Symmetry code: (i) x, y−1, z. |
Acknowledgements
MT and JK thank the Grant Agency of the Slovak Republic (grant No. VEGA 1/0817/08) and the Structural Funds, Interreg IIIA, for financial support in purchasing the diffractometer.
References
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In the present work, the structure of N-(2,4-dichlorophenyl)-benzamide (N24DCPBA) has been determined to study the effect of substituents on the structures of benzanilides (Gowda et al., 2003, 2007a,b, 2008a,b). The conformations of the N—H and C=O bonds in the structure of N24DCPBA (Fig.1) are anti to each other, similar to that observed in N-(phenyl)-benzamide (NPBA) (Gowda et al., 2003), N-(2-chlorophenyl)-benzamide (N2CPBA), N-(4-chlorophenyl)-benzamide (N4CPBA), N-(2,3-dichlorophenyl)-benzamide(N23DCPBA), N-(2,6-dichlorophenyl)-benzamide (N26DCPBA) and other benzanilides (Gowda et al., 2007a,b, 2008a,b). The bond parameters in N24DCPBA are similar to those in NPBA, N2CPBA, N4CPBA, N23DCPBA, N26DCPBA and other benzanilides. The amide group –NHCO– forms the dihedral angle of 33.0 (2)° with the benzoyl ring, while the benzoyl and aniline rings are almost coplanar, with the dihedral angle of 2.6 (2)°). Part of the crystal structure of the title compound with infinite molecular chains running in the [010] direction is shown in Fig. 2. The chains are generated by N—H···O(i) hydrogen bonds (Table 1) [symmetry operation (i): x,y - 1,z].