| Literature DB >> 21201940 |
Aamer Saeed, Shahid Hussain, Michael Bolte.
Abstract
Geometric parameters of the title compound, C(14)H(12)N(2)O(4), are in the usual ranges. The dihedral angle between the two aromatic rings is 28.9 (1)°. The nitro group is twisted by 40.2 (1)° out of the plane of the aromatic ring to which it is attached. The crystal structure is stabilized by an N-H⋯O hydrogen bond.Entities:
Year: 2008 PMID: 21201940 PMCID: PMC2960838 DOI: 10.1107/S1600536808002626
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C14H12N2O4 | |
| Mo | |
| Orthorhombic, | Cell parameters from 7856 reflections |
| θ = 3.8–25.6º | |
| µ = 0.11 mm−1 | |
| Block, light yellow | |
| 0.37 × 0.33 × 0.21 mm | |
| Stoe IPDSII two-circle diffractometer | 1275 reflections with |
| Radiation source: fine-focus sealed tube | |
| Monochromator: graphite | θmax = 25.6º |
| θmin = 3.6º | |
| ω scans | |
| Absorption correction: none | |
| 8342 measured reflections | |
| 1368 independent reflections |
| Refinement on | Hydrogen site location: inferred from neighbouring sites |
| Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
| | |
| (Δ/σ)max < 0.001 | |
| Δρmax = 0.28 e Å−3 | |
| 1368 reflections | Δρmin = −0.21 e Å−3 |
| 187 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.052 (7) |
| Secondary atom site location: difference Fourier map |
| 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 |
| C1 | 0.7040 (3) | 0.4189 (2) | 0.58905 (15) | 0.0271 (5) | |
| N1 | 0.6935 (3) | 0.46807 (19) | 0.51339 (14) | 0.0287 (5) | |
| H1 | 0.618 (5) | 0.449 (3) | 0.4799 (19) | 0.040 (9)* | |
| N2 | 0.7600 (3) | 0.14453 (18) | 0.64422 (13) | 0.0299 (5) | |
| O1 | 0.8235 (3) | 0.44489 (17) | 0.63779 (11) | 0.0370 (5) | |
| O2 | 0.8450 (3) | 0.16188 (18) | 0.58190 (13) | 0.0410 (5) | |
| O3 | 0.8114 (3) | 0.07915 (18) | 0.70333 (13) | 0.0419 (5) | |
| O4 | 0.5752 (2) | 0.62521 (16) | 0.39737 (11) | 0.0305 (5) | |
| C11 | 0.5537 (3) | 0.3307 (2) | 0.61508 (14) | 0.0263 (5) | |
| C12 | 0.5833 (3) | 0.2030 (2) | 0.64870 (16) | 0.0264 (5) | |
| C13 | 0.4498 (4) | 0.1261 (2) | 0.68256 (15) | 0.0307 (6) | |
| H13 | 0.4744 | 0.0404 | 0.7055 | 0.037* | |
| C14 | 0.2795 (4) | 0.1764 (2) | 0.68236 (17) | 0.0338 (6) | |
| H14 | 0.1869 | 0.1248 | 0.7049 | 0.041* | |
| C15 | 0.2456 (4) | 0.3028 (3) | 0.64891 (17) | 0.0360 (6) | |
| H15 | 0.1294 | 0.3368 | 0.6483 | 0.043* | |
| C16 | 0.3821 (4) | 0.3800 (2) | 0.61615 (17) | 0.0324 (6) | |
| H16 | 0.3579 | 0.4667 | 0.5945 | 0.039* | |
| C21 | 0.8150 (3) | 0.5560 (2) | 0.47494 (14) | 0.0260 (5) | |
| C22 | 0.7505 (3) | 0.6385 (2) | 0.41263 (15) | 0.0267 (5) | |
| C23 | 0.8635 (4) | 0.7254 (2) | 0.37131 (16) | 0.0293 (6) | |
| H23 | 0.8199 | 0.7825 | 0.3297 | 0.035* | |
| C24 | 1.0410 (4) | 0.7277 (2) | 0.39163 (16) | 0.0314 (6) | |
| H24 | 1.1177 | 0.7872 | 0.3638 | 0.038* | |
| C25 | 1.1068 (4) | 0.6440 (2) | 0.45211 (17) | 0.0323 (6) | |
| H25 | 1.2280 | 0.6452 | 0.4649 | 0.039* | |
| C26 | 0.9933 (4) | 0.5579 (2) | 0.49399 (15) | 0.0299 (5) | |
| H26 | 1.0374 | 0.5007 | 0.5354 | 0.036* | |
| C27 | 0.5074 (4) | 0.6982 (2) | 0.32917 (16) | 0.0323 (6) | |
| H27A | 0.5211 | 0.7951 | 0.3385 | 0.048* | |
| H27B | 0.3831 | 0.6769 | 0.3222 | 0.048* | |
| H27C | 0.5717 | 0.6724 | 0.2802 | 0.048* |
| C1 | 0.0227 (13) | 0.0256 (10) | 0.0331 (13) | 0.0022 (9) | −0.0009 (10) | −0.0013 (9) |
| N1 | 0.0195 (11) | 0.0312 (10) | 0.0354 (12) | −0.0040 (8) | −0.0015 (10) | 0.0024 (8) |
| N2 | 0.0261 (12) | 0.0246 (9) | 0.0390 (12) | 0.0014 (9) | −0.0020 (9) | −0.0034 (8) |
| O1 | 0.0324 (11) | 0.0415 (9) | 0.0372 (10) | −0.0095 (9) | −0.0085 (8) | 0.0057 (8) |
| O2 | 0.0308 (11) | 0.0429 (9) | 0.0491 (11) | 0.0067 (8) | 0.0110 (9) | 0.0029 (9) |
| O3 | 0.0413 (12) | 0.0373 (8) | 0.0470 (12) | 0.0104 (9) | −0.0093 (9) | 0.0037 (8) |
| O4 | 0.0209 (9) | 0.0330 (8) | 0.0374 (10) | −0.0019 (7) | −0.0012 (8) | 0.0062 (7) |
| C11 | 0.0217 (12) | 0.0282 (11) | 0.0289 (12) | 0.0003 (10) | −0.0005 (11) | 0.0009 (9) |
| C12 | 0.0208 (14) | 0.0269 (10) | 0.0315 (12) | −0.0008 (9) | 0.0007 (10) | −0.0038 (9) |
| C13 | 0.0312 (15) | 0.0271 (10) | 0.0338 (13) | −0.0040 (10) | 0.0025 (12) | −0.0029 (9) |
| C14 | 0.0268 (15) | 0.0368 (12) | 0.0377 (14) | −0.0069 (11) | 0.0047 (12) | −0.0027 (10) |
| C15 | 0.0216 (14) | 0.0457 (13) | 0.0408 (15) | 0.0011 (11) | 0.0024 (12) | −0.0023 (11) |
| C16 | 0.0255 (14) | 0.0355 (12) | 0.0362 (13) | 0.0055 (10) | 0.0001 (12) | 0.0043 (10) |
| C21 | 0.0216 (12) | 0.0247 (10) | 0.0315 (12) | −0.0026 (10) | 0.0041 (10) | 0.0000 (9) |
| C22 | 0.0210 (12) | 0.0261 (10) | 0.0328 (12) | −0.0010 (9) | 0.0016 (10) | −0.0011 (9) |
| C23 | 0.0270 (14) | 0.0264 (10) | 0.0345 (13) | −0.0007 (10) | 0.0036 (11) | 0.0005 (9) |
| C24 | 0.0247 (14) | 0.0304 (11) | 0.0390 (14) | −0.0047 (10) | 0.0044 (12) | −0.0004 (10) |
| C25 | 0.0225 (13) | 0.0345 (12) | 0.0398 (13) | −0.0043 (11) | −0.0005 (11) | −0.0034 (10) |
| C26 | 0.0243 (13) | 0.0328 (12) | 0.0326 (12) | 0.0005 (11) | −0.0010 (10) | −0.0008 (9) |
| C27 | 0.0240 (14) | 0.0362 (12) | 0.0367 (14) | 0.0010 (10) | −0.0036 (11) | 0.0074 (9) |
| C1—O1 | 1.244 (3) | C15—C16 | 1.404 (4) |
| C1—N1 | 1.343 (3) | C15—H15 | 0.9500 |
| C1—C11 | 1.508 (3) | C16—H16 | 0.9500 |
| N1—C21 | 1.424 (3) | C21—C26 | 1.399 (4) |
| N1—H1 | 0.82 (4) | C21—C22 | 1.404 (3) |
| N2—O2 | 1.229 (3) | C22—C23 | 1.399 (3) |
| N2—O3 | 1.236 (3) | C23—C24 | 1.399 (4) |
| N2—C12 | 1.473 (3) | C23—H23 | 0.9500 |
| O4—C22 | 1.371 (3) | C24—C25 | 1.393 (4) |
| O4—C27 | 1.435 (3) | C24—H24 | 0.9500 |
| C11—C16 | 1.400 (4) | C25—C26 | 1.401 (4) |
| C11—C12 | 1.402 (3) | C25—H25 | 0.9500 |
| C12—C13 | 1.392 (4) | C26—H26 | 0.9500 |
| C13—C14 | 1.395 (4) | C27—H27A | 0.9800 |
| C13—H13 | 0.9500 | C27—H27B | 0.9800 |
| C14—C15 | 1.395 (4) | C27—H27C | 0.9800 |
| C14—H14 | 0.9500 | ||
| O1—C1—N1 | 124.7 (2) | C11—C16—H16 | 119.6 |
| O1—C1—C11 | 119.7 (2) | C15—C16—H16 | 119.6 |
| N1—C1—C11 | 115.5 (2) | C26—C21—C22 | 119.9 (2) |
| C1—N1—C21 | 126.7 (2) | C26—C21—N1 | 122.9 (2) |
| C1—N1—H1 | 126 (2) | C22—C21—N1 | 117.1 (2) |
| C21—N1—H1 | 107 (2) | O4—C22—C23 | 125.0 (2) |
| O2—N2—O3 | 124.5 (2) | O4—C22—C21 | 115.0 (2) |
| O2—N2—C12 | 118.2 (2) | C23—C22—C21 | 120.0 (2) |
| O3—N2—C12 | 117.3 (2) | C22—C23—C24 | 119.5 (2) |
| C22—O4—C27 | 116.69 (19) | C22—C23—H23 | 120.2 |
| C16—C11—C12 | 117.5 (2) | C24—C23—H23 | 120.2 |
| C16—C11—C1 | 121.0 (2) | C25—C24—C23 | 120.8 (2) |
| C12—C11—C1 | 121.0 (2) | C25—C24—H24 | 119.6 |
| C13—C12—C11 | 122.5 (2) | C23—C24—H24 | 119.6 |
| C13—C12—N2 | 118.5 (2) | C24—C25—C26 | 119.6 (3) |
| C11—C12—N2 | 119.0 (2) | C24—C25—H25 | 120.2 |
| C12—C13—C14 | 119.1 (2) | C26—C25—H25 | 120.2 |
| C12—C13—H13 | 120.4 | C21—C26—C25 | 120.1 (2) |
| C14—C13—H13 | 120.4 | C21—C26—H26 | 120.0 |
| C13—C14—C15 | 119.8 (2) | C25—C26—H26 | 120.0 |
| C13—C14—H14 | 120.1 | O4—C27—H27A | 109.5 |
| C15—C14—H14 | 120.1 | O4—C27—H27B | 109.5 |
| C14—C15—C16 | 120.3 (3) | H27A—C27—H27B | 109.5 |
| C14—C15—H15 | 119.8 | O4—C27—H27C | 109.5 |
| C16—C15—H15 | 119.8 | H27A—C27—H27C | 109.5 |
| C11—C16—C15 | 120.7 (2) | H27B—C27—H27C | 109.5 |
| O1—C1—N1—C21 | 0.8 (4) | C12—C11—C16—C15 | −0.8 (4) |
| C11—C1—N1—C21 | 178.3 (2) | C1—C11—C16—C15 | −172.8 (2) |
| O1—C1—C11—C16 | 118.2 (3) | C14—C15—C16—C11 | 1.2 (4) |
| N1—C1—C11—C16 | −59.5 (3) | C1—N1—C21—C26 | 29.1 (4) |
| O1—C1—C11—C12 | −53.6 (3) | C1—N1—C21—C22 | −154.1 (2) |
| N1—C1—C11—C12 | 128.8 (2) | C27—O4—C22—C23 | 5.6 (3) |
| C16—C11—C12—C13 | −0.2 (4) | C27—O4—C22—C21 | −174.3 (2) |
| C1—C11—C12—C13 | 171.8 (2) | C26—C21—C22—O4 | 177.9 (2) |
| C16—C11—C12—N2 | 176.4 (2) | N1—C21—C22—O4 | 1.0 (3) |
| C1—C11—C12—N2 | −11.6 (3) | C26—C21—C22—C23 | −2.0 (3) |
| O2—N2—C12—C13 | 138.0 (3) | N1—C21—C22—C23 | −178.8 (2) |
| O3—N2—C12—C13 | −40.8 (3) | O4—C22—C23—C24 | −178.8 (2) |
| O2—N2—C12—C11 | −38.8 (3) | C21—C22—C23—C24 | 1.1 (4) |
| O3—N2—C12—C11 | 142.4 (2) | C22—C23—C24—C25 | 0.4 (4) |
| C11—C12—C13—C14 | 0.8 (4) | C23—C24—C25—C26 | −1.0 (4) |
| N2—C12—C13—C14 | −175.8 (2) | C22—C21—C26—C25 | 1.3 (4) |
| C12—C13—C14—C15 | −0.4 (4) | N1—C21—C26—C25 | 178.0 (2) |
| C13—C14—C15—C16 | −0.6 (4) | C24—C25—C26—C21 | 0.1 (4) |
| H··· | ||||
| N1—H1···O2i | 0.82 (4) | 2.57 (4) | 3.352 (3) | 159 (3) |
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| N1—H1⋯O2i | 0.82 (4) | 2.57 (4) | 3.352 (3) | 159 (3) |
Symmetry code: (i) .