organic compounds
N-(3,4-Dichlorophenyl)maleamic acid
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 10H7Cl2NO3, contains two unique molecules, both being stabilized by an intramolecular O—H⋯O hydrogen bond within their maleamic units. In the intermolecular N—H⋯O hydrogen bonds link the molecules into chains extending along [1] which are further assembled into sheets via short intermolecular C—Cl⋯O=C contacts [3.102 (2) and 3.044 (2) Å].
of the title compound, CRelated literature
For studies on the effect of ring- and side-chain substitutions on the crystal structures of et al. (2009, 2010); Lo & Ng (2009); Prasad et al. (2002); Shakuntala et al. (2009). For short halogen–oxygen contacts, see: Fourmigué (2009); Legon (1999).
see: GowdaExperimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO CCD (Oxford Diffraction, 2009); cell CrysAlis PRO CCD; data reduction: CrysAlis PRO RED (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, PLATON (Spek, 2009) and WinGX (Farrugia, 1999).
Supporting information
10.1107/S160053681002129X/xu2768sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053681002129X/xu2768Isup2.hkl
The solution of maleic anhydride (0.025 mol) in toluene (25 ml) was treated dropwise with the solution of 3,4-dichloroaniline (0.025 mol) also in toluene (20 ml) with constant stirring. The resulting mixture was warmed with stirring for over 30 min and set aside for an additional 30 min at room temperature for completion of the reaction. The mixture was then treated with dilute hydrochloric acid to remove the unreacted 3,4-dichloroaniline. The resultant solid N-(3,4-dichlorophenyl)maleamic acid was filtered under suction and washed thoroughly with water to remove the unreacted maleic anhydride and maleic acid. It was recrystallized to constant melting point from ethanol. The purity of the compound was checked by elemental analysis and characterized by its infrared spectra.
Block like colourless single crystals used in X-ray diffraction studies were grown in an ethanol solution by slow evaporation at room temperature.
H atoms bonded to C and N atoms were positioned with idealized geometry (C—H = 0.93 Å, N—H = 0.86 Å) and refined using a riding model. H atoms of carboxyl groups were visible in difference maps and were refined freely with O—H distances restrained to 0.90 (3) Å. The Uiso(H) values were set at 1.2Ueq(C aromatic, N) and 1.5Ueq(O).
Data collection: CrysAlis PRO CCD (Oxford Diffraction, 2009); cell
CrysAlis PRO CCD (Oxford Diffraction, 2009); data reduction: CrysAlis PRO RED (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).C10H7Cl2NO3 | Z = 4 |
Mr = 260.07 | F(000) = 528 |
Triclinic, P1 | Dx = 1.648 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.1959 (7) Å | Cell parameters from 5934 reflections |
b = 11.6234 (10) Å | θ = 1.6–28.1° |
c = 13.1399 (14) Å | µ = 0.61 mm−1 |
α = 85.116 (8)° | T = 295 K |
β = 75.060 (9)° | Block, colourless |
γ = 81.205 (7)° | 0.54 × 0.28 × 0.11 mm |
V = 1048.19 (18) Å3 |
Oxford Diffraction Gemini R, CCD diffractometer | 3897 independent reflections |
Graphite monochromator | 3075 reflections with I > 2σ(I) |
Detector resolution: 10.434 pixels mm-1 | Rint = 0.026 |
ω scans | θmax = 25.5°, θmin = 1.8° |
Absorption correction: multi-scan (CrysAlis PRO RED; Oxford Diffraction, 2009) | h = −8→8 |
Tmin = 0.870, Tmax = 0.969 | k = −14→14 |
11933 measured reflections | l = −15→15 |
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)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.083 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0379P)2 + 0.3773P] where P = (Fo2 + 2Fc2)/3 |
3897 reflections | (Δ/σ)max = 0.001 |
295 parameters | Δρmax = 0.33 e Å−3 |
2 restraints | Δρmin = −0.23 e Å−3 |
C10H7Cl2NO3 | γ = 81.205 (7)° |
Mr = 260.07 | V = 1048.19 (18) Å3 |
Triclinic, P1 | Z = 4 |
a = 7.1959 (7) Å | Mo Kα radiation |
b = 11.6234 (10) Å | µ = 0.61 mm−1 |
c = 13.1399 (14) Å | T = 295 K |
α = 85.116 (8)° | 0.54 × 0.28 × 0.11 mm |
β = 75.060 (9)° |
Oxford Diffraction Gemini R, CCD diffractometer | 3897 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO RED; Oxford Diffraction, 2009) | 3075 reflections with I > 2σ(I) |
Tmin = 0.870, Tmax = 0.969 | Rint = 0.026 |
11933 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 2 restraints |
wR(F2) = 0.083 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.33 e Å−3 |
3897 reflections | Δρmin = −0.23 e Å−3 |
295 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 | 0.6769 (3) | 0.57748 (17) | 0.60126 (16) | 0.0368 (5) | |
C2 | 0.6821 (3) | 0.45235 (17) | 0.58531 (16) | 0.0408 (5) | |
H2 | 0.7495 | 0.4269 | 0.519 | 0.049* | |
C3 | 0.6022 (3) | 0.37134 (17) | 0.65399 (16) | 0.0416 (5) | |
H3 | 0.6257 | 0.2973 | 0.6277 | 0.05* | |
C4 | 0.4826 (3) | 0.37742 (17) | 0.76479 (16) | 0.0386 (5) | |
C5 | 0.7512 (3) | 0.76165 (16) | 0.50046 (15) | 0.0327 (4) | |
C6 | 0.7421 (3) | 0.83188 (16) | 0.58292 (15) | 0.0330 (4) | |
H6 | 0.7353 | 0.7995 | 0.6508 | 0.04* | |
C7 | 0.7433 (3) | 0.95030 (16) | 0.56238 (15) | 0.0313 (4) | |
C8 | 0.7540 (3) | 1.00008 (16) | 0.46162 (16) | 0.0329 (4) | |
C9 | 0.7642 (3) | 0.92903 (18) | 0.38049 (16) | 0.0389 (5) | |
H9 | 0.7725 | 0.9614 | 0.3125 | 0.047* | |
C10 | 0.7623 (3) | 0.81111 (18) | 0.39948 (16) | 0.0380 (5) | |
H10 | 0.7684 | 0.7642 | 0.3445 | 0.046* | |
N1 | 0.7501 (2) | 0.63960 (14) | 0.51337 (13) | 0.0378 (4) | |
H1N | 0.8028 | 0.6006 | 0.458 | 0.045* | |
O1 | 0.6107 (2) | 0.62179 (12) | 0.68815 (12) | 0.0503 (4) | |
O2 | 0.4523 (3) | 0.47244 (13) | 0.81526 (12) | 0.0562 (5) | |
H2A | 0.506 (4) | 0.530 (2) | 0.776 (2) | 0.084* | |
O3 | 0.4146 (2) | 0.29115 (13) | 0.80735 (12) | 0.0528 (4) | |
Cl1 | 0.73228 (8) | 1.03670 (4) | 0.66563 (4) | 0.04481 (16) | |
Cl2 | 0.75788 (8) | 1.14770 (4) | 0.43458 (4) | 0.04553 (16) | |
C21 | 0.8620 (3) | 0.74292 (16) | 0.90501 (15) | 0.0325 (4) | |
C22 | 0.8539 (3) | 0.61620 (16) | 0.92152 (16) | 0.0357 (5) | |
H22 | 0.7904 | 0.5909 | 0.9888 | 0.043* | |
C23 | 0.9263 (3) | 0.53360 (17) | 0.85204 (16) | 0.0386 (5) | |
H23 | 0.9045 | 0.459 | 0.8795 | 0.046* | |
C24 | 1.0349 (3) | 0.53723 (17) | 0.73945 (16) | 0.0375 (5) | |
C25 | 0.7588 (3) | 0.92609 (15) | 1.00107 (15) | 0.0286 (4) | |
C26 | 0.8324 (3) | 1.00323 (16) | 0.91955 (15) | 0.0309 (4) | |
H26 | 0.9001 | 0.9761 | 0.8538 | 0.037* | |
C27 | 0.8038 (3) | 1.12116 (16) | 0.93712 (15) | 0.0314 (4) | |
C28 | 0.7036 (3) | 1.16303 (16) | 1.03496 (16) | 0.0335 (4) | |
C29 | 0.6323 (3) | 1.08583 (17) | 1.11585 (16) | 0.0383 (5) | |
H29 | 0.566 | 1.1131 | 1.1817 | 0.046* | |
C30 | 0.6590 (3) | 0.96819 (17) | 1.09950 (15) | 0.0350 (5) | |
H30 | 0.6101 | 0.9165 | 1.1544 | 0.042* | |
N2 | 0.7781 (2) | 0.80432 (13) | 0.99092 (12) | 0.0317 (4) | |
H2N | 0.7298 | 0.7645 | 1.0471 | 0.038* | |
O4 | 0.9388 (3) | 0.78924 (12) | 0.81921 (11) | 0.0524 (4) | |
O5 | 1.0862 (3) | 0.63417 (13) | 0.69133 (12) | 0.0544 (5) | |
H5A | 1.039 (4) | 0.693 (2) | 0.735 (2) | 0.082* | |
O6 | 1.0751 (3) | 0.44786 (13) | 0.69212 (12) | 0.0558 (4) | |
Cl3 | 0.89907 (9) | 1.21571 (4) | 0.83501 (4) | 0.04603 (16) | |
Cl4 | 0.66462 (9) | 1.31041 (4) | 1.05637 (5) | 0.05015 (17) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0428 (12) | 0.0320 (10) | 0.0322 (11) | −0.0102 (9) | 0.0005 (9) | −0.0035 (9) |
C2 | 0.0538 (13) | 0.0333 (11) | 0.0300 (11) | −0.0105 (10) | 0.0036 (10) | −0.0078 (9) |
C3 | 0.0575 (14) | 0.0274 (10) | 0.0353 (12) | −0.0093 (9) | 0.0006 (10) | −0.0069 (9) |
C4 | 0.0474 (13) | 0.0307 (11) | 0.0344 (11) | −0.0083 (9) | −0.0027 (10) | −0.0021 (9) |
C5 | 0.0353 (11) | 0.0302 (10) | 0.0297 (11) | −0.0107 (8) | 0.0011 (8) | −0.0020 (8) |
C6 | 0.0381 (11) | 0.0334 (10) | 0.0262 (10) | −0.0089 (9) | −0.0032 (9) | −0.0009 (8) |
C7 | 0.0317 (10) | 0.0309 (10) | 0.0296 (11) | −0.0059 (8) | −0.0019 (8) | −0.0075 (8) |
C8 | 0.0291 (10) | 0.0296 (10) | 0.0349 (11) | −0.0060 (8) | 0.0017 (8) | 0.0001 (8) |
C9 | 0.0467 (13) | 0.0407 (12) | 0.0258 (10) | −0.0109 (10) | −0.0008 (9) | 0.0012 (9) |
C10 | 0.0472 (13) | 0.0381 (11) | 0.0267 (11) | −0.0140 (9) | 0.0001 (9) | −0.0049 (9) |
N1 | 0.0530 (11) | 0.0285 (9) | 0.0271 (9) | −0.0117 (8) | 0.0035 (8) | −0.0061 (7) |
O1 | 0.0782 (11) | 0.0318 (8) | 0.0324 (8) | −0.0177 (7) | 0.0094 (8) | −0.0081 (6) |
O2 | 0.0877 (13) | 0.0356 (9) | 0.0338 (9) | −0.0224 (8) | 0.0155 (8) | −0.0073 (7) |
O3 | 0.0753 (11) | 0.0364 (8) | 0.0393 (9) | −0.0224 (8) | 0.0059 (8) | 0.0026 (7) |
Cl1 | 0.0622 (4) | 0.0363 (3) | 0.0360 (3) | −0.0100 (2) | −0.0076 (3) | −0.0109 (2) |
Cl2 | 0.0530 (3) | 0.0293 (3) | 0.0473 (3) | −0.0066 (2) | −0.0007 (3) | 0.0026 (2) |
C21 | 0.0427 (12) | 0.0258 (10) | 0.0268 (10) | −0.0041 (8) | −0.0048 (9) | −0.0029 (8) |
C22 | 0.0488 (13) | 0.0272 (10) | 0.0272 (10) | −0.0082 (9) | −0.0009 (9) | −0.0010 (8) |
C23 | 0.0544 (13) | 0.0228 (10) | 0.0348 (11) | −0.0071 (9) | −0.0032 (10) | −0.0022 (8) |
C24 | 0.0469 (13) | 0.0291 (11) | 0.0329 (11) | −0.0018 (9) | −0.0044 (9) | −0.0052 (9) |
C25 | 0.0314 (10) | 0.0249 (9) | 0.0295 (10) | −0.0034 (8) | −0.0065 (8) | −0.0053 (8) |
C26 | 0.0367 (11) | 0.0288 (10) | 0.0252 (10) | −0.0041 (8) | −0.0031 (8) | −0.0059 (8) |
C27 | 0.0339 (11) | 0.0269 (10) | 0.0319 (11) | −0.0072 (8) | −0.0043 (9) | 0.0002 (8) |
C28 | 0.0377 (11) | 0.0246 (9) | 0.0358 (11) | −0.0019 (8) | −0.0041 (9) | −0.0091 (8) |
C29 | 0.0429 (12) | 0.0335 (11) | 0.0326 (11) | −0.0040 (9) | 0.0033 (9) | −0.0101 (9) |
C30 | 0.0418 (12) | 0.0308 (10) | 0.0277 (10) | −0.0073 (9) | 0.0016 (9) | −0.0023 (8) |
N2 | 0.0435 (10) | 0.0240 (8) | 0.0238 (8) | −0.0070 (7) | 0.0001 (7) | −0.0025 (6) |
O4 | 0.0877 (12) | 0.0262 (7) | 0.0300 (8) | −0.0089 (8) | 0.0107 (8) | −0.0038 (6) |
O5 | 0.0841 (12) | 0.0319 (8) | 0.0335 (9) | −0.0109 (8) | 0.0133 (8) | −0.0067 (7) |
O6 | 0.0867 (12) | 0.0331 (8) | 0.0387 (9) | −0.0062 (8) | 0.0036 (8) | −0.0147 (7) |
Cl3 | 0.0647 (4) | 0.0296 (3) | 0.0360 (3) | −0.0111 (2) | 0.0033 (3) | 0.0010 (2) |
Cl4 | 0.0639 (4) | 0.0256 (3) | 0.0524 (3) | −0.0049 (2) | 0.0037 (3) | −0.0129 (2) |
C1—O1 | 1.241 (2) | C21—O4 | 1.238 (2) |
C1—N1 | 1.339 (3) | C21—N2 | 1.342 (2) |
C1—C2 | 1.481 (3) | C21—C22 | 1.478 (3) |
C2—C3 | 1.336 (3) | C22—C23 | 1.333 (3) |
C2—H2 | 0.93 | C22—H22 | 0.93 |
C3—C4 | 1.489 (3) | C23—C24 | 1.485 (3) |
C3—H3 | 0.93 | C23—H23 | 0.93 |
C4—O3 | 1.213 (2) | C24—O6 | 1.214 (2) |
C4—O2 | 1.298 (2) | C24—O5 | 1.300 (2) |
C5—C10 | 1.388 (3) | C25—C26 | 1.386 (3) |
C5—C6 | 1.394 (3) | C25—C30 | 1.396 (3) |
C5—N1 | 1.415 (2) | C25—N2 | 1.415 (2) |
C6—C7 | 1.381 (3) | C26—C27 | 1.385 (3) |
C6—H6 | 0.93 | C26—H26 | 0.93 |
C7—C8 | 1.387 (3) | C27—C28 | 1.390 (3) |
C7—Cl1 | 1.7343 (19) | C27—Cl3 | 1.7271 (19) |
C8—C9 | 1.384 (3) | C28—C29 | 1.377 (3) |
C8—Cl2 | 1.7253 (19) | C28—Cl4 | 1.7282 (19) |
C9—C10 | 1.374 (3) | C29—C30 | 1.379 (3) |
C9—H9 | 0.93 | C29—H29 | 0.93 |
C10—H10 | 0.93 | C30—H30 | 0.93 |
N1—H1N | 0.86 | N2—H2N | 0.86 |
O2—H2A | 0.89 (2) | O5—H5A | 0.90 (2) |
O1—C1—N1 | 122.47 (18) | O4—C21—N2 | 122.46 (17) |
O1—C1—C2 | 123.38 (18) | O4—C21—C22 | 123.11 (17) |
N1—C1—C2 | 114.15 (18) | N2—C21—C22 | 114.43 (17) |
C3—C2—C1 | 128.32 (19) | C23—C22—C21 | 128.12 (19) |
C3—C2—H2 | 115.8 | C23—C22—H22 | 115.9 |
C1—C2—H2 | 115.8 | C21—C22—H22 | 115.9 |
C2—C3—C4 | 132.04 (19) | C22—C23—C24 | 132.64 (19) |
C2—C3—H3 | 114 | C22—C23—H23 | 113.7 |
C4—C3—H3 | 114 | C24—C23—H23 | 113.7 |
O3—C4—O2 | 120.48 (19) | O6—C24—O5 | 119.99 (19) |
O3—C4—C3 | 118.52 (18) | O6—C24—C23 | 118.96 (18) |
O2—C4—C3 | 121.00 (18) | O5—C24—C23 | 121.05 (17) |
C10—C5—C6 | 119.89 (18) | C26—C25—C30 | 119.63 (17) |
C10—C5—N1 | 116.76 (17) | C26—C25—N2 | 123.62 (17) |
C6—C5—N1 | 123.36 (18) | C30—C25—N2 | 116.75 (17) |
C7—C6—C5 | 119.00 (18) | C27—C26—C25 | 119.21 (18) |
C7—C6—H6 | 120.5 | C27—C26—H26 | 120.4 |
C5—C6—H6 | 120.5 | C25—C26—H26 | 120.4 |
C6—C7—C8 | 121.28 (18) | C26—C27—C28 | 121.11 (18) |
C6—C7—Cl1 | 118.55 (15) | C26—C27—Cl3 | 118.51 (15) |
C8—C7—Cl1 | 120.16 (15) | C28—C27—Cl3 | 120.37 (14) |
C9—C8—C7 | 118.99 (18) | C29—C28—C27 | 119.39 (17) |
C9—C8—Cl2 | 119.23 (15) | C29—C28—Cl4 | 119.48 (15) |
C7—C8—Cl2 | 121.78 (15) | C27—C28—Cl4 | 121.13 (15) |
C10—C9—C8 | 120.57 (19) | C28—C29—C30 | 120.20 (18) |
C10—C9—H9 | 119.7 | C28—C29—H29 | 119.9 |
C8—C9—H9 | 119.7 | C30—C29—H29 | 119.9 |
C9—C10—C5 | 120.27 (19) | C29—C30—C25 | 120.46 (18) |
C9—C10—H10 | 119.9 | C29—C30—H30 | 119.8 |
C5—C10—H10 | 119.9 | C25—C30—H30 | 119.8 |
C1—N1—C5 | 127.91 (17) | C21—N2—C25 | 128.46 (16) |
C1—N1—H1N | 116 | C21—N2—H2N | 115.8 |
C5—N1—H1N | 116 | C25—N2—H2N | 115.8 |
C4—O2—H2A | 112 (2) | C24—O5—H5A | 109.4 (19) |
O1—C1—C2—C3 | 7.9 (4) | O4—C21—C22—C23 | 1.3 (4) |
N1—C1—C2—C3 | −172.1 (2) | N2—C21—C22—C23 | −179.0 (2) |
C1—C2—C3—C4 | 1.2 (4) | C21—C22—C23—C24 | 0.0 (4) |
C2—C3—C4—O3 | 174.2 (2) | C22—C23—C24—O6 | −175.8 (2) |
C2—C3—C4—O2 | −6.2 (4) | C22—C23—C24—O5 | 3.9 (4) |
C10—C5—C6—C7 | 0.3 (3) | C30—C25—C26—C27 | −0.6 (3) |
N1—C5—C6—C7 | −179.75 (19) | N2—C25—C26—C27 | 179.24 (18) |
C5—C6—C7—C8 | −0.2 (3) | C25—C26—C27—C28 | 0.2 (3) |
C5—C6—C7—Cl1 | −179.91 (15) | C25—C26—C27—Cl3 | 179.23 (15) |
C6—C7—C8—C9 | −0.2 (3) | C26—C27—C28—C29 | 0.3 (3) |
Cl1—C7—C8—C9 | 179.47 (15) | Cl3—C27—C28—C29 | −178.67 (16) |
C6—C7—C8—Cl2 | −179.39 (15) | C26—C27—C28—Cl4 | −178.99 (16) |
Cl1—C7—C8—Cl2 | 0.3 (2) | Cl3—C27—C28—Cl4 | 2.0 (3) |
C7—C8—C9—C10 | 0.5 (3) | C27—C28—C29—C30 | −0.5 (3) |
Cl2—C8—C9—C10 | 179.72 (16) | Cl4—C28—C29—C30 | 178.78 (17) |
C8—C9—C10—C5 | −0.4 (3) | C28—C29—C30—C25 | 0.2 (3) |
C6—C5—C10—C9 | 0.0 (3) | C26—C25—C30—C29 | 0.3 (3) |
N1—C5—C10—C9 | −179.96 (19) | N2—C25—C30—C29 | −179.47 (18) |
O1—C1—N1—C5 | −5.8 (4) | O4—C21—N2—C25 | 0.7 (3) |
C2—C1—N1—C5 | 174.17 (19) | C22—C21—N2—C25 | −179.03 (18) |
C10—C5—N1—C1 | −155.1 (2) | C26—C25—N2—C21 | −1.7 (3) |
C6—C5—N1—C1 | 24.9 (3) | C30—C25—N2—C21 | 178.07 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O6i | 0.86 | 2.03 | 2.869 (2) | 165 |
N2—H2N···O3ii | 0.86 | 2.03 | 2.873 (2) | 166 |
O2—H2A···O1 | 0.89 (2) | 1.61 (2) | 2.496 (2) | 171 (3) |
O5—H5A···O4 | 0.90 (2) | 1.59 (2) | 2.492 (2) | 174 (3) |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+1, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C10H7Cl2NO3 |
Mr | 260.07 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 295 |
a, b, c (Å) | 7.1959 (7), 11.6234 (10), 13.1399 (14) |
α, β, γ (°) | 85.116 (8), 75.060 (9), 81.205 (7) |
V (Å3) | 1048.19 (18) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.61 |
Crystal size (mm) | 0.54 × 0.28 × 0.11 |
Data collection | |
Diffractometer | Oxford Diffraction Gemini R, CCD diffractometer |
Absorption correction | Multi-scan (CrysAlis PRO RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.870, 0.969 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11933, 3897, 3075 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.083, 1.03 |
No. of reflections | 3897 |
No. of parameters | 295 |
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, −0.23 |
Computer programs: CrysAlis PRO CCD (Oxford Diffraction, 2009), CrysAlis PRO RED (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···O6i | 0.86 | 2.03 | 2.869 (2) | 165 |
N2—H2N···O3ii | 0.86 | 2.03 | 2.873 (2) | 166 |
O2—H2A···O1 | 0.89 (2) | 1.61 (2) | 2.496 (2) | 171 (3) |
O5—H5A···O4 | 0.90 (2) | 1.59 (2) | 2.492 (2) | 174 (3) |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+1, −y+1, −z+2. |
Acknowledgements
MT and JK thank the Grant Agency of the Slovak Republic (VEGA 1/0817/08) and the Structural Funds, Interreg IIIA, for financial support in purchasing the diffractometer. KS thanks the University Grants Commission, Government of India, New Delhi, for the award of a research fellowship under its faculty improvement program.
References
Brandenburg, K. (2002). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Fourmigué, M. (2009). Curr. Opin. Solid State Mater. Sci. 13, 36–45. Google Scholar
Gowda, B. T., Tokarčík, M., Kožíšek, J., Shakuntala, K. & Fuess, H. (2009). Acta Cryst. E65, o2874. Web of Science CrossRef IUCr Journals Google Scholar
Gowda, B. T., Tokarčík, M., Kožíšek, J., Shakuntala, K. & Fuess, H. (2010). Acta Cryst. E66, o51. Web of Science CSD CrossRef IUCr Journals Google Scholar
Legon, A. C. (1999). Angew. Chem. Int. Ed. 38, 2686–2714. CrossRef Google Scholar
Lo, K. M. & Ng, S. W. (2009). Acta Cryst. E65, o1101. Web of Science CSD CrossRef IUCr Journals Google Scholar
Oxford Diffraction (2009). CrysAlis PRO CCD and CrysAlis PRO RED. Oxford Diffraction Ltd, Yarnton, England. Google Scholar
Prasad, S. M., Sinha, R. B. P., Mandal, D. K. & Rani, A. (2002). Acta Cryst. E58, o1296–o1297. Web of Science CSD CrossRef IUCr Journals Google Scholar
Shakuntala, K., Gowda, B. T., Tokarčík, M. & Kožíšek, J. (2009). Acta Cryst. E65, o3119. 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
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.
In the present work, as a part of studying the effect of ring and side chain substitutions on the crystal structures of biologically significant amides (Gowda et al., 2009, 2010; Shakuntala et al., 2009; Prasad et al., 2002), the crystal structure of N-(3,4-dichlorophenyl)maleamic acid (I) has been determined (Fig. 1).
The asymmetric unit of the cell contains two molecules. In the first molecule, which significantly deviates from planarity, the torsion angle C6—C5—N1—C1 = 24.9 (3)° defines the orientation of the phenyl ring towards the central amide group —NHCO—. The atoms of maleamic acid moiety do not fit very well to a plane (r.m.s. deviation = 0.077\%A). It makes a dihedral angle of 27.5 (1)° with the phenyl ring. The geometry of the second molecule is almost planar as shown by the small dihedral angle of 1.9 (1)° formed by the planes of phenyl ring and maleamic acid moiety. Each maleamic acid moiety includes a short intramolecular hydrogen bond O—H···O (Table 1). The bond lengths C2–C3 = 1.336 (3) and C22–C23 = 1.333 (3)\%A clearly indicate the double bond character.
In the crystal structure (Fig. 2), the intermolecular N–H···O hydrogen bonds link the molecules into chains extending along the [1 - 1 -1]direction. These chains are further assembled by short Cl···O contacts of the length 3.102 (2) and 3.044 (2)Å to form the sheet like structure.
Our data for the C–Cl···O halogen bonds are in agreement with the observations of others (Fourmigué, 2009, Legon, 1999).