organic compounds
N-(3-Chloro-4-methylphenyl)maleamic acid
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, C11H10ClNO3, the dihedral angle between the benzene ring and the amide group is 6.6 (10)° and an intramolecular O—H⋯O hydrogen bond occurs. In the crystal, molecules are linked by N—H⋯O hydrogen bonds, generating C(7) zigzag chains.
Related literature
For our studies on the effects of substituents on the structures and other aspects of N-(aryl)-amides, see: Gowda et al. (2000, 2003, 2007); Chaithanya et al. (2012). For N-chloroarylamides, see: Jyothi & Gowda (2004). For N-bromoarylsulfonamides, see: Usha & Gowda (2006).
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
10.1107/S1600536812007842/kp2391sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812007842/kp2391Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812007842/kp2391Isup3.cml
Maleic anhydride (0.025 mol) in toluene (25 mL) was treated dropwise with 3-chloro-4-methylaniline (0.025 mol) also in toluene (20 mL) with constant stirring. The resulting mixture was stirred for about 30 min and set aside for an additional 30 min at room temperature for the completion of reaction. The mixture was then treated with dilute hydrochloric acid to remove the unreacted 3-chloro-4-methylaniline. The resultant solid N-(3-chloro-4-methylphenyl)-maleamic acid was filtered under suction and washed thoroughly with water to remove the unreacted maleic anhydride and maleic acid. It was recrystallised to constant melting point from ethanol. The purity of the compound was checked and characterized by its infrared spectra.
Prism like pale yellow single crystals of the title compound used in X-ray diffraction studies were grown in an ethanol solution by slow evaporation of the solvent (0.5 g in about 30 mL of ethanol) at room temperature.
The H atoms of the NH group and the OH group were located in a difference map and later restrained to the distance N—H = 0.86 (2) Å and O—H = 0.82 (2) Å, respectively. The other H atoms were positioned with idealized geometry using a riding model with the aromatic C—H = 0.93 Å and methylene C—H = 0.97 Å. All H atoms were refined with isotropic displacement parameters set at 1.2 Ueq(C-aromatic, N) and 1.5 Ueq(C-methyl).
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).C11H10ClNO3 | F(000) = 496 |
Mr = 239.65 | Dx = 1.511 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1538 reflections |
a = 9.005 (1) Å | θ = 2.8–27.9° |
b = 13.491 (2) Å | µ = 0.35 mm−1 |
c = 8.757 (1) Å | T = 293 K |
β = 97.91 (1)° | Prism, yellow |
V = 1053.7 (2) Å3 | 0.48 × 0.40 × 0.34 mm |
Z = 4 |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2147 independent reflections |
Radiation source: fine-focus sealed tube | 1798 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.011 |
Rotation method data acquisition using ω and phi scans | θmax = 26.4°, θmin = 2.8° |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | h = −11→8 |
Tmin = 0.849, Tmax = 0.890 | k = −16→14 |
4069 measured reflections | l = −7→10 |
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) = 0.105 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0582P)2 + 0.2934P] where P = (Fo2 + 2Fc2)/3 |
2147 reflections | (Δ/σ)max < 0.001 |
152 parameters | Δρmax = 0.33 e Å−3 |
2 restraints | Δρmin = −0.27 e Å−3 |
C11H10ClNO3 | V = 1053.7 (2) Å3 |
Mr = 239.65 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.005 (1) Å | µ = 0.35 mm−1 |
b = 13.491 (2) Å | T = 293 K |
c = 8.757 (1) Å | 0.48 × 0.40 × 0.34 mm |
β = 97.91 (1)° |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2147 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | 1798 reflections with I > 2σ(I) |
Tmin = 0.849, Tmax = 0.890 | Rint = 0.011 |
4069 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 2 restraints |
wR(F2) = 0.105 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.33 e Å−3 |
2147 reflections | Δρmin = −0.27 e Å−3 |
152 parameters |
Experimental. CrysAlis RED (Oxford Diffraction, 2009) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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 | 0.66874 (17) | 0.04762 (11) | 0.39541 (18) | 0.0309 (3) | |
C2 | 0.59803 (18) | 0.12392 (11) | 0.30833 (19) | 0.0359 (4) | |
H2 | 0.6327 | 0.1887 | 0.3217 | 0.043* | |
C3 | 0.47494 (18) | 0.10217 (11) | 0.20120 (19) | 0.0355 (4) | |
C4 | 0.41627 (17) | 0.00764 (12) | 0.17621 (18) | 0.0332 (4) | |
C5 | 0.49161 (19) | −0.06669 (12) | 0.2641 (2) | 0.0398 (4) | |
H5 | 0.4571 | −0.1315 | 0.2503 | 0.048* | |
C6 | 0.61566 (18) | −0.04879 (12) | 0.3714 (2) | 0.0381 (4) | |
H6 | 0.6637 | −0.1009 | 0.4275 | 0.046* | |
C7 | 0.85614 (17) | 0.14437 (12) | 0.56761 (18) | 0.0324 (3) | |
C8 | 0.98127 (18) | 0.13165 (12) | 0.69471 (19) | 0.0351 (4) | |
H8 | 1.0081 | 0.0665 | 0.7197 | 0.042* | |
C9 | 1.06040 (18) | 0.20092 (13) | 0.77789 (19) | 0.0378 (4) | |
H9 | 1.1357 | 0.1758 | 0.8509 | 0.045* | |
C10 | 1.05105 (18) | 0.31142 (12) | 0.77605 (19) | 0.0366 (4) | |
C11 | 0.27987 (18) | −0.01421 (14) | 0.0625 (2) | 0.0434 (4) | |
H11A | 0.2960 | 0.0081 | −0.0380 | 0.052* | |
H11B | 0.1949 | 0.0196 | 0.0930 | 0.052* | |
H11C | 0.2614 | −0.0843 | 0.0598 | 0.052* | |
N1 | 0.79351 (15) | 0.06004 (10) | 0.51139 (16) | 0.0338 (3) | |
H1N | 0.827 (2) | 0.0067 (12) | 0.560 (2) | 0.041* | |
O1 | 0.81351 (14) | 0.22693 (9) | 0.51661 (15) | 0.0483 (3) | |
O2 | 1.13005 (15) | 0.35781 (10) | 0.87433 (15) | 0.0507 (4) | |
O3 | 0.95988 (16) | 0.35732 (9) | 0.67213 (17) | 0.0537 (4) | |
H3O | 0.911 (2) | 0.3136 (16) | 0.611 (2) | 0.064* | |
Cl1 | 0.38990 (6) | 0.19890 (3) | 0.09113 (6) | 0.0620 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0306 (7) | 0.0240 (7) | 0.0350 (8) | −0.0015 (6) | −0.0065 (6) | −0.0020 (6) |
C2 | 0.0396 (8) | 0.0203 (7) | 0.0427 (9) | −0.0025 (6) | −0.0119 (7) | −0.0008 (6) |
C3 | 0.0381 (8) | 0.0234 (7) | 0.0407 (9) | 0.0018 (6) | −0.0099 (7) | −0.0006 (7) |
C4 | 0.0324 (8) | 0.0264 (8) | 0.0375 (8) | −0.0021 (6) | −0.0064 (6) | −0.0040 (6) |
C5 | 0.0425 (9) | 0.0218 (8) | 0.0503 (10) | −0.0058 (6) | −0.0112 (7) | −0.0008 (7) |
C6 | 0.0421 (9) | 0.0219 (8) | 0.0453 (9) | −0.0008 (6) | −0.0118 (7) | 0.0024 (7) |
C7 | 0.0323 (7) | 0.0259 (7) | 0.0359 (8) | −0.0011 (6) | −0.0064 (6) | −0.0018 (6) |
C8 | 0.0372 (8) | 0.0264 (8) | 0.0378 (9) | 0.0012 (6) | −0.0083 (7) | 0.0009 (6) |
C9 | 0.0374 (8) | 0.0341 (9) | 0.0368 (8) | 0.0010 (7) | −0.0125 (7) | 0.0008 (7) |
C10 | 0.0370 (8) | 0.0322 (8) | 0.0376 (8) | −0.0037 (7) | −0.0051 (7) | −0.0042 (7) |
C11 | 0.0395 (9) | 0.0356 (9) | 0.0497 (10) | −0.0037 (7) | −0.0135 (8) | −0.0050 (8) |
N1 | 0.0354 (7) | 0.0229 (6) | 0.0385 (7) | −0.0005 (5) | −0.0115 (6) | 0.0022 (5) |
O1 | 0.0517 (7) | 0.0246 (6) | 0.0584 (8) | −0.0014 (5) | −0.0286 (6) | 0.0011 (5) |
O2 | 0.0559 (8) | 0.0382 (7) | 0.0511 (8) | −0.0093 (6) | −0.0174 (6) | −0.0103 (6) |
O3 | 0.0593 (8) | 0.0273 (6) | 0.0638 (9) | −0.0037 (6) | −0.0298 (6) | −0.0009 (6) |
Cl1 | 0.0708 (4) | 0.0261 (2) | 0.0743 (4) | 0.00032 (19) | −0.0426 (3) | 0.0058 (2) |
C1—C2 | 1.383 (2) | C7—N1 | 1.334 (2) |
C1—C6 | 1.392 (2) | C7—C8 | 1.481 (2) |
C1—N1 | 1.4170 (19) | C8—C9 | 1.330 (2) |
C2—C3 | 1.382 (2) | C8—H8 | 0.9300 |
C2—H2 | 0.9300 | C9—C10 | 1.493 (2) |
C3—C4 | 1.386 (2) | C9—H9 | 0.9300 |
C3—Cl1 | 1.7364 (16) | C10—O2 | 1.212 (2) |
C4—C5 | 1.384 (2) | C10—O3 | 1.296 (2) |
C4—C11 | 1.500 (2) | C11—H11A | 0.9600 |
C5—C6 | 1.378 (2) | C11—H11B | 0.9600 |
C5—H5 | 0.9300 | C11—H11C | 0.9600 |
C6—H6 | 0.9300 | N1—H1N | 0.869 (15) |
C7—O1 | 1.2410 (19) | O3—H3O | 0.871 (16) |
C2—C1—C6 | 119.32 (14) | N1—C7—C8 | 114.71 (13) |
C2—C1—N1 | 124.51 (13) | C9—C8—C7 | 128.69 (15) |
C6—C1—N1 | 116.16 (13) | C9—C8—H8 | 115.7 |
C3—C2—C1 | 118.80 (14) | C7—C8—H8 | 115.7 |
C3—C2—H2 | 120.6 | C8—C9—C10 | 132.10 (15) |
C1—C2—H2 | 120.6 | C8—C9—H9 | 113.9 |
C2—C3—C4 | 123.73 (14) | C10—C9—H9 | 113.9 |
C2—C3—Cl1 | 117.95 (12) | O2—C10—O3 | 120.32 (16) |
C4—C3—Cl1 | 118.31 (12) | O2—C10—C9 | 118.75 (16) |
C5—C4—C3 | 115.58 (14) | O3—C10—C9 | 120.92 (14) |
C5—C4—C11 | 121.39 (14) | C4—C11—H11A | 109.5 |
C3—C4—C11 | 123.03 (14) | C4—C11—H11B | 109.5 |
C6—C5—C4 | 122.79 (15) | H11A—C11—H11B | 109.5 |
C6—C5—H5 | 118.6 | C4—C11—H11C | 109.5 |
C4—C5—H5 | 118.6 | H11A—C11—H11C | 109.5 |
C5—C6—C1 | 119.74 (15) | H11B—C11—H11C | 109.5 |
C5—C6—H6 | 120.1 | C7—N1—C1 | 128.23 (13) |
C1—C6—H6 | 120.1 | C7—N1—H1N | 115.1 (13) |
O1—C7—N1 | 122.59 (14) | C1—N1—H1N | 116.2 (13) |
O1—C7—C8 | 122.70 (14) | C10—O3—H3O | 108.9 (16) |
C6—C1—C2—C3 | 0.9 (3) | C2—C1—C6—C5 | −1.5 (3) |
N1—C1—C2—C3 | −178.44 (16) | N1—C1—C6—C5 | 177.89 (15) |
C1—C2—C3—C4 | 0.6 (3) | O1—C7—C8—C9 | 3.8 (3) |
C1—C2—C3—Cl1 | −178.99 (13) | N1—C7—C8—C9 | −176.65 (18) |
C2—C3—C4—C5 | −1.5 (3) | C7—C8—C9—C10 | 1.3 (3) |
Cl1—C3—C4—C5 | 178.12 (13) | C8—C9—C10—O2 | 173.92 (19) |
C2—C3—C4—C11 | 178.21 (16) | C8—C9—C10—O3 | −5.7 (3) |
Cl1—C3—C4—C11 | −2.2 (2) | O1—C7—N1—C1 | −3.5 (3) |
C3—C4—C5—C6 | 0.9 (3) | C8—C7—N1—C1 | 177.01 (15) |
C11—C4—C5—C6 | −178.86 (17) | C2—C1—N1—C7 | 6.7 (3) |
C4—C5—C6—C1 | 0.6 (3) | C6—C1—N1—C7 | −172.69 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O2i | 0.87 (2) | 2.11 (2) | 2.9546 (19) | 164 (2) |
O3—H3O···O1 | 0.87 (2) | 1.62 (2) | 2.4885 (17) | 173 (2) |
Symmetry code: (i) −x+2, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C11H10ClNO3 |
Mr | 239.65 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 9.005 (1), 13.491 (2), 8.757 (1) |
β (°) | 97.91 (1) |
V (Å3) | 1053.7 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.35 |
Crystal size (mm) | 0.48 × 0.40 × 0.34 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.849, 0.890 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4069, 2147, 1798 |
Rint | 0.011 |
(sin θ/λ)max (Å−1) | 0.625 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.105, 1.04 |
No. of reflections | 2147 |
No. of parameters | 152 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.27 |
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···O2i | 0.869 (15) | 2.111 (15) | 2.9546 (19) | 163.8 (18) |
O3—H3O···O1 | 0.871 (16) | 1.621 (17) | 2.4885 (17) | 173 (2) |
Symmetry code: (i) −x+2, y−1/2, −z+3/2. |
Acknowledgements
BTG thanks the University Grants Commission, Government of India, New Delhi, for a UGC-BSR one-time Grant to Faculty.
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 our studies on the substituent effects on the structures and other aspects of N-(aryl)-amides (Gowda et al., 2000, 2003, 2007; Chaithanya et al., 2012), N-chloroarylsulfonamides (Jyothi & Gowda, 2004) and N-bromoarylsulfonamides (Usha & Gowda, 2006), in the present work, the crystal structure of N-(3-chloro-4-methylphenyl)maleamic acid has been determined (Fig. 1). The conformations of the N—H and the C=O bonds in the amide segment are anti to each other. The conformation of the N—H bond is also anti to the meta–chloro atom. Further, the conformation of the amide C═O is anti to the H atom on the adjacent –CH group, while the carboxyl C═O of the acid segment is syn to the adjacent –CH group. Furthermore, the C═O and O—H bond of the acid group are in relatively rare anti position to each other, due to the donation of hydrogen bond to the amide by the carboxyl group, in contrast to the more general syn conformation observed in N-(3-chloro-4-methylphenyl)-succinamic acid (I) (Chaithanya et al., 2012).
The dihedral angle between the phenyl ring and the amide group in the title compound is 6.55 (99)°, compared to the values of 40.58 (22)° and 44.93 (27)° in the two derivatives of (I).
In the structure, the pairs of O—H···O and N—H···O intermolecular hydrogen bonds pack the molecules into chains (Table 1, Fig.2).