Abstract
The two independent molecules in the title compound (systematic name: 4-amino-4-oxobut-2-enoic acid), C10H9NO3, are both essentially planar (r.m.s. deviations = 0.05 and 0.06 Å). In both molecules, the –OH group forms an intramolecular hydrogen bond to the amide O atom. Adjacent molecules are linked by N—H⋯O hydrogen bonds into a flat ribbon that runs along the a axis of the monoclinic unit cell.
Related literature
For the crystal structures of other substituted N-(phenyl)maleamic acids, see, for example: Gonzalez-Rodriguez et al. (1986 ▶); Home et al. (1991 ▶); Lynch & McClenaghan (2002 ▶); Parvez et al. (2004a
▶,b
▶); Prasad et al. (2002a
▶,b
▶); Santos-Sánchez et al. (2007 ▶); Wardell et al. (2005 ▶).
Experimental
Crystal data
C10H9NO3
M r = 191.18
Monoclinic,
a = 12.7505 (4) Å
b = 10.5849 (5) Å
c = 14.1918 (6) Å
β = 116.299 (3)°
V = 1717.1 (1) Å3
Z = 8
Mo Kα radiation
μ = 0.11 mm−1
T = 100 K
0.24 × 0.06 × 0.06 mm
Data collection
Bruker SMART APEX diffractometer
Absorption correction: none
11493 measured reflections
3925 independent reflections
2256 reflections with I > 2σ(I)
R int = 0.062
Refinement
R[F 2 > 2σ(F 2)] = 0.068
wR(F 2) = 0.208
S = 1.02
3925 reflections
269 parameters
4 restraints
H atoms treated by a mixture of independent and constrained refinement
Δρmax = 0.96 e Å−3
Δρmin = −0.36 e Å−3
Data collection: APEX2 (Bruker, 2008 ▶); cell refinement: SAINT (Bruker, 2008 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: X-SEED (Barbour, 2001 ▶); software used to prepare material for publication: publCIF (Westrip, 2009 ▶).
Supplementary Material
Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536809014627/tk2436sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S1600536809014627/tk2436Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report
Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O2—H2o⋯O3 | 0.85 (1) | 1.63 (1) | 2.475 (3) | 172 (4) |
| O5—H5o⋯O6 | 0.86 (1) | 1.65 (1) | 2.496 (3) | 170 (3) |
| N1—H1n⋯O4 | 0.88 (1) | 2.00 (1) | 2.864 (3) | 166 (3) |
| N2—H2n⋯O1i | 0.89 (1) | 1.99 (1) | 2.859 (3) | 167 (3) |
Symmetry code: (i)
.
Acknowledgments
We thank the University of Malaya (FS339/2008 A) for supporting this study.
supplementary crystallographic information
Experimental
Maleic anhydride (1 g, 1 mmol) and aniline (1 ml, 1 mmol) was heated in toluene (50 ml) for 1 h. The solution was set aside for the formation of crystals.
Refinement
Carbon-bound H-atoms were placed in calculated positions (C–H 0.95 Å) and were included in the refinement in the riding model approximation, with U(H) set to 1.2U(C). The oxygen- and nitrogen-bound hydrogen atoms were located in a difference Fourier map, and were refined with distance restraints of O–H 0.84±0.01 Å and N–H 0.88±0.01 Å; the temperature factors were refined.
Figures
Fig. 1.
Thermal ellipsoid plot (Barbour, 2001) of the two independent molecules of C10H9NO3 at the 70% probability level. Hydrogen atoms are drawn as spheres of arbitrary radius.
Crystal data
| C10H9NO3 | F(000) = 800 |
| Mr = 191.18 | Dx = 1.479 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 1202 reflections |
| a = 12.7505 (4) Å | θ = 2.6–27.4° |
| b = 10.5849 (5) Å | µ = 0.11 mm−1 |
| c = 14.1918 (6) Å | T = 100 K |
| β = 116.299 (3)° | Prism, colorless |
| V = 1717.1 (1) Å3 | 0.24 × 0.06 × 0.06 mm |
| Z = 8 |
Data collection
| Bruker SMART APEX diffractometer | 2256 reflections with I > 2σ(I) |
| Radiation source: fine-focus sealed tube | Rint = 0.062 |
| graphite | θmax = 27.5°, θmin = 1.8° |
| ω scans | h = −16→16 |
| 11493 measured reflections | k = −13→13 |
| 3925 independent reflections | l = −14→18 |
Refinement
| 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)] = 0.068 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.208 | H atoms treated by a mixture of independent and constrained refinement |
| S = 1.02 | w = 1/[σ2(Fo2) + (0.1139P)2] where P = (Fo2 + 2Fc2)/3 |
| 3925 reflections | (Δ/σ)max = 0.001 |
| 269 parameters | Δρmax = 0.96 e Å−3 |
| 4 restraints | Δρmin = −0.36 e Å−3 |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
| x | y | z | Uiso*/Ueq | ||
| O1 | 0.41604 (16) | 0.86211 (19) | 0.61750 (16) | 0.0173 (5) | |
| O2 | 0.41080 (17) | 0.6545 (2) | 0.62972 (17) | 0.0167 (5) | |
| H2O | 0.449 (3) | 0.590 (3) | 0.627 (3) | 0.058 (14)* | |
| O3 | 0.53761 (17) | 0.4779 (2) | 0.62899 (16) | 0.0187 (5) | |
| O4 | 0.91395 (17) | 0.5468 (2) | 0.60999 (17) | 0.0216 (5) | |
| O5 | 0.91031 (17) | 0.75293 (19) | 0.62870 (17) | 0.0164 (5) | |
| H5O | 0.946 (3) | 0.820 (2) | 0.625 (3) | 0.028 (10)* | |
| O6 | 1.03470 (16) | 0.93320 (19) | 0.62520 (16) | 0.0187 (5) | |
| N1 | 0.7136 (2) | 0.4490 (2) | 0.62704 (18) | 0.0122 (5) | |
| H1N | 0.771 (2) | 0.492 (3) | 0.623 (2) | 0.019 (8)* | |
| N2 | 1.2093 (2) | 0.9624 (2) | 0.62037 (19) | 0.0149 (6) | |
| H2N | 1.2657 (19) | 0.923 (3) | 0.611 (2) | 0.020 (8)* | |
| C1 | 0.4591 (2) | 0.7584 (3) | 0.6178 (2) | 0.0123 (6) | |
| C2 | 0.5691 (2) | 0.7538 (3) | 0.6046 (2) | 0.0109 (6) | |
| H2 | 0.5933 | 0.8336 | 0.5906 | 0.013* | |
| C3 | 0.6396 (2) | 0.6584 (3) | 0.6087 (2) | 0.0157 (6) | |
| H3 | 0.7079 | 0.6811 | 0.6018 | 0.019* | |
| C4 | 0.6250 (2) | 0.5224 (3) | 0.6227 (2) | 0.0135 (6) | |
| C5 | 0.7229 (2) | 0.3155 (3) | 0.6348 (2) | 0.0130 (6) | |
| C6 | 0.8169 (2) | 0.2612 (3) | 0.6232 (2) | 0.0118 (6) | |
| H6 | 0.8710 | 0.3139 | 0.6125 | 0.014* | |
| C7 | 0.8311 (2) | 0.1321 (3) | 0.6272 (2) | 0.0164 (6) | |
| H7 | 0.8945 | 0.0957 | 0.6188 | 0.020* | |
| C8 | 0.7521 (2) | 0.0547 (3) | 0.6436 (2) | 0.0149 (6) | |
| H8 | 0.7609 | −0.0345 | 0.6450 | 0.018* | |
| C9 | 0.6615 (2) | 0.1075 (3) | 0.6576 (2) | 0.0171 (6) | |
| H9 | 0.6086 | 0.0544 | 0.6697 | 0.020* | |
| C10 | 0.6463 (2) | 0.2388 (3) | 0.6541 (2) | 0.0136 (6) | |
| H10 | 0.5843 | 0.2749 | 0.6648 | 0.016* | |
| C11 | 0.9577 (2) | 0.6509 (3) | 0.6128 (2) | 0.0145 (6) | |
| C12 | 1.0671 (2) | 0.6566 (3) | 0.5988 (2) | 0.0171 (6) | |
| H12 | 1.0910 | 0.5773 | 0.5836 | 0.021* | |
| C13 | 1.1380 (2) | 0.7531 (3) | 0.6038 (2) | 0.0095 (6) | |
| H13 | 1.2070 | 0.7313 | 0.5977 | 0.011* | |
| C14 | 1.1215 (2) | 0.8896 (3) | 0.6177 (2) | 0.0140 (6) | |
| C15 | 1.2203 (2) | 1.0966 (3) | 0.6289 (2) | 0.0130 (6) | |
| C16 | 1.3130 (2) | 1.1490 (3) | 0.6154 (2) | 0.0169 (7) | |
| H16 | 1.3645 | 1.0961 | 0.6012 | 0.020* | |
| C17 | 1.3298 (2) | 1.2781 (3) | 0.6228 (2) | 0.0163 (6) | |
| H17 | 1.3934 | 1.3136 | 0.6143 | 0.020* | |
| C18 | 1.2542 (2) | 1.3569 (3) | 0.6427 (2) | 0.0165 (6) | |
| H18 | 1.2659 | 1.4458 | 0.6471 | 0.020* | |
| C19 | 1.1619 (2) | 1.3044 (3) | 0.6560 (2) | 0.0147 (6) | |
| H19 | 1.1097 | 1.3576 | 0.6689 | 0.018* | |
| C20 | 1.1457 (2) | 1.1746 (3) | 0.6504 (2) | 0.0147 (6) | |
| H20 | 1.0835 | 1.1388 | 0.6612 | 0.018* |
Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| O1 | 0.0154 (10) | 0.0149 (12) | 0.0241 (12) | 0.0036 (8) | 0.0111 (9) | −0.0025 (9) |
| O2 | 0.0143 (10) | 0.0118 (12) | 0.0283 (12) | 0.0004 (9) | 0.0133 (9) | 0.0026 (9) |
| O3 | 0.0165 (10) | 0.0144 (12) | 0.0298 (12) | −0.0003 (8) | 0.0145 (9) | 0.0015 (9) |
| O4 | 0.0195 (10) | 0.0149 (12) | 0.0335 (13) | −0.0042 (9) | 0.0145 (10) | −0.0003 (9) |
| O5 | 0.0150 (10) | 0.0108 (12) | 0.0280 (13) | −0.0026 (8) | 0.0138 (9) | 0.0000 (9) |
| O6 | 0.0176 (10) | 0.0126 (12) | 0.0322 (13) | −0.0003 (9) | 0.0166 (9) | −0.0029 (9) |
| N1 | 0.0159 (12) | 0.0072 (13) | 0.0159 (12) | −0.0001 (10) | 0.0091 (10) | 0.0012 (10) |
| N2 | 0.0145 (12) | 0.0157 (14) | 0.0175 (13) | 0.0013 (10) | 0.0097 (10) | 0.0010 (10) |
| C1 | 0.0106 (13) | 0.0144 (16) | 0.0125 (15) | 0.0004 (11) | 0.0057 (11) | −0.0015 (11) |
| C2 | 0.0111 (13) | 0.0083 (15) | 0.0136 (14) | −0.0008 (10) | 0.0057 (11) | −0.0022 (11) |
| C3 | 0.0166 (13) | 0.0157 (17) | 0.0185 (15) | −0.0007 (12) | 0.0112 (12) | −0.0009 (12) |
| C4 | 0.0135 (13) | 0.0150 (16) | 0.0128 (14) | 0.0017 (11) | 0.0067 (11) | −0.0012 (11) |
| C5 | 0.0149 (13) | 0.0136 (15) | 0.0106 (14) | 0.0022 (12) | 0.0056 (11) | 0.0007 (12) |
| C6 | 0.0127 (13) | 0.0119 (15) | 0.0128 (14) | −0.0023 (11) | 0.0075 (11) | 0.0004 (11) |
| C7 | 0.0161 (13) | 0.0162 (17) | 0.0165 (15) | 0.0017 (12) | 0.0068 (12) | −0.0009 (12) |
| C8 | 0.0231 (14) | 0.0050 (14) | 0.0177 (15) | −0.0012 (11) | 0.0101 (12) | −0.0002 (11) |
| C9 | 0.0166 (13) | 0.0175 (17) | 0.0171 (15) | −0.0020 (12) | 0.0075 (12) | 0.0044 (12) |
| C10 | 0.0094 (12) | 0.0195 (17) | 0.0122 (15) | 0.0029 (11) | 0.0049 (11) | 0.0005 (12) |
| C11 | 0.0151 (13) | 0.0139 (16) | 0.0159 (15) | 0.0000 (12) | 0.0082 (12) | 0.0018 (12) |
| C12 | 0.0197 (14) | 0.0182 (17) | 0.0175 (15) | 0.0032 (12) | 0.0119 (12) | 0.0005 (12) |
| C13 | 0.0114 (12) | 0.0100 (14) | 0.0075 (13) | 0.0000 (10) | 0.0044 (10) | −0.0009 (10) |
| C14 | 0.0176 (13) | 0.0158 (16) | 0.0091 (14) | 0.0013 (12) | 0.0064 (11) | 0.0009 (11) |
| C15 | 0.0176 (13) | 0.0107 (15) | 0.0084 (13) | 0.0042 (11) | 0.0037 (11) | 0.0025 (11) |
| C16 | 0.0171 (14) | 0.0180 (17) | 0.0167 (15) | 0.0033 (12) | 0.0083 (12) | 0.0000 (12) |
| C17 | 0.0105 (13) | 0.0211 (17) | 0.0164 (15) | −0.0028 (12) | 0.0051 (11) | 0.0027 (13) |
| C18 | 0.0173 (14) | 0.0139 (16) | 0.0154 (15) | −0.0052 (12) | 0.0046 (12) | −0.0002 (12) |
| C19 | 0.0135 (13) | 0.0141 (16) | 0.0155 (15) | −0.0006 (12) | 0.0057 (11) | −0.0011 (12) |
| C20 | 0.0159 (13) | 0.0149 (15) | 0.0136 (15) | 0.0020 (12) | 0.0069 (11) | 0.0005 (12) |
Geometric parameters (Å, °)
| O1—C1 | 1.227 (3) | C7—C8 | 1.395 (4) |
| O2—C1 | 1.307 (3) | C7—H7 | 0.9500 |
| O2—H2O | 0.846 (10) | C8—C9 | 1.375 (4) |
| O3—C4 | 1.249 (3) | C8—H8 | 0.9500 |
| O4—C11 | 1.227 (3) | C9—C10 | 1.401 (4) |
| O5—C11 | 1.305 (3) | C9—H9 | 0.9500 |
| O5—H5O | 0.857 (10) | C10—H10 | 0.9500 |
| O6—C14 | 1.247 (3) | C11—C12 | 1.495 (4) |
| N1—C4 | 1.350 (3) | C12—C13 | 1.344 (4) |
| N1—C5 | 1.419 (4) | C12—H12 | 0.9500 |
| N1—H1N | 0.879 (10) | C13—C14 | 1.486 (4) |
| N2—C14 | 1.345 (4) | C13—H13 | 0.9500 |
| N2—C15 | 1.427 (4) | C15—C20 | 1.391 (4) |
| N2—H2N | 0.886 (10) | C15—C16 | 1.394 (4) |
| C1—C2 | 1.496 (4) | C16—C17 | 1.379 (4) |
| C2—C3 | 1.335 (4) | C16—H16 | 0.9500 |
| C2—H2 | 0.9500 | C17—C18 | 1.394 (4) |
| C3—C4 | 1.476 (4) | C17—H17 | 0.9500 |
| C3—H3 | 0.9500 | C18—C19 | 1.389 (4) |
| C5—C10 | 1.387 (4) | C18—H18 | 0.9500 |
| C5—C6 | 1.403 (4) | C19—C20 | 1.387 (4) |
| C6—C7 | 1.377 (4) | C19—H19 | 0.9500 |
| C6—H6 | 0.9500 | C20—H20 | 0.9500 |
| C1—O2—H2O | 111 (3) | C10—C9—H9 | 119.7 |
| C11—O5—H5O | 112 (2) | C5—C10—C9 | 119.3 (3) |
| C4—N1—C5 | 128.0 (2) | C5—C10—H10 | 120.3 |
| C4—N1—H1N | 114 (2) | C9—C10—H10 | 120.3 |
| C5—N1—H1N | 118 (2) | O4—C11—O5 | 120.7 (2) |
| C14—N2—C15 | 128.4 (2) | O4—C11—C12 | 118.0 (3) |
| C14—N2—H2N | 117 (2) | O5—C11—C12 | 121.3 (3) |
| C15—N2—H2N | 115 (2) | C13—C12—C11 | 132.0 (3) |
| O1—C1—O2 | 121.2 (2) | C13—C12—H12 | 114.0 |
| O1—C1—C2 | 118.1 (2) | C11—C12—H12 | 114.0 |
| O2—C1—C2 | 120.7 (2) | C12—C13—C14 | 127.9 (2) |
| C3—C2—C1 | 132.0 (3) | C12—C13—H13 | 116.0 |
| C3—C2—H2 | 114.0 | C14—C13—H13 | 116.0 |
| C1—C2—H2 | 114.0 | O6—C14—N2 | 123.0 (3) |
| C2—C3—C4 | 128.4 (3) | O6—C14—C13 | 123.6 (3) |
| C2—C3—H3 | 115.8 | N2—C14—C13 | 113.4 (2) |
| C4—C3—H3 | 115.8 | C20—C15—C16 | 119.9 (3) |
| O3—C4—N1 | 122.3 (3) | C20—C15—N2 | 123.9 (3) |
| O3—C4—C3 | 123.1 (3) | C16—C15—N2 | 116.2 (2) |
| N1—C4—C3 | 114.5 (2) | C17—C16—C15 | 119.7 (3) |
| C10—C5—C6 | 119.8 (3) | C17—C16—H16 | 120.1 |
| C10—C5—N1 | 123.8 (2) | C15—C16—H16 | 120.1 |
| C6—C5—N1 | 116.4 (2) | C16—C17—C18 | 120.7 (3) |
| C7—C6—C5 | 120.3 (3) | C16—C17—H17 | 119.6 |
| C7—C6—H6 | 119.8 | C18—C17—H17 | 119.6 |
| C5—C6—H6 | 119.8 | C19—C18—C17 | 119.4 (3) |
| C6—C7—C8 | 119.9 (3) | C19—C18—H18 | 120.3 |
| C6—C7—H7 | 120.0 | C17—C18—H18 | 120.3 |
| C8—C7—H7 | 120.0 | C20—C19—C18 | 120.2 (3) |
| C9—C8—C7 | 120.0 (3) | C20—C19—H19 | 119.9 |
| C9—C8—H8 | 120.0 | C18—C19—H19 | 119.9 |
| C7—C8—H8 | 120.0 | C19—C20—C15 | 120.1 (3) |
| C8—C9—C10 | 120.6 (3) | C19—C20—H20 | 120.0 |
| C8—C9—H9 | 119.7 | C15—C20—H20 | 120.0 |
| O1—C1—C2—C3 | 174.8 (3) | O4—C11—C12—C13 | −175.7 (3) |
| O2—C1—C2—C3 | −5.1 (5) | O5—C11—C12—C13 | 3.6 (5) |
| C1—C2—C3—C4 | 3.8 (5) | C11—C12—C13—C14 | −5.2 (5) |
| C5—N1—C4—O3 | 2.6 (4) | C15—N2—C14—O6 | −1.8 (5) |
| C5—N1—C4—C3 | −176.7 (3) | C15—N2—C14—C13 | 177.6 (2) |
| C2—C3—C4—O3 | 2.7 (5) | C12—C13—C14—O6 | −1.1 (5) |
| C2—C3—C4—N1 | −178.0 (3) | C12—C13—C14—N2 | 179.4 (3) |
| C4—N1—C5—C10 | −9.5 (4) | C14—N2—C15—C20 | 9.1 (4) |
| C4—N1—C5—C6 | 171.4 (3) | C14—N2—C15—C16 | −171.5 (3) |
| C10—C5—C6—C7 | 2.3 (4) | C20—C15—C16—C17 | −0.4 (4) |
| N1—C5—C6—C7 | −178.5 (2) | N2—C15—C16—C17 | −179.8 (2) |
| C5—C6—C7—C8 | −0.4 (4) | C15—C16—C17—C18 | −0.6 (4) |
| C6—C7—C8—C9 | −1.2 (4) | C16—C17—C18—C19 | 0.5 (4) |
| C7—C8—C9—C10 | 0.9 (4) | C17—C18—C19—C20 | 0.5 (4) |
| C6—C5—C10—C9 | −2.5 (4) | C18—C19—C20—C15 | −1.5 (4) |
| N1—C5—C10—C9 | 178.4 (3) | C16—C15—C20—C19 | 1.5 (4) |
| C8—C9—C10—C5 | 0.9 (4) | N2—C15—C20—C19 | −179.2 (2) |
Hydrogen-bond geometry (Å, °)
| D—H···A | D—H | H···A | D···A | D—H···A |
| O2—H2o···O3 | 0.85 (1) | 1.63 (1) | 2.475 (3) | 172 (4) |
| O5—H5o···O6 | 0.86 (1) | 1.65 (1) | 2.496 (3) | 170 (3) |
| N1—H1n···O4 | 0.88 (1) | 2.00 (1) | 2.864 (3) | 166 (3) |
| N2—H2n···O1i | 0.89 (1) | 1.99 (1) | 2.859 (3) | 167 (3) |
Symmetry codes: (i) x+1, y, z.
Footnotes
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: TK2436).
References
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- Parvez, M., Shahzadi, S., Shahid, K. & Ali, S. (2004b). Acta Cryst. E60, o2082–o2084.
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- Westrip, S. P. (2009). publCIF In preparation.
Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536809014627/tk2436sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S1600536809014627/tk2436Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report

