| Literature DB >> 21581033 |
Muhammad Rafiq, Muhammad Hanif, Ghulam Qadeer, Sauli Vuoti, Juho Autio.
Abstract
In the mol-ecule of the title compound, C(8)H(10)N(2)O, the oxime group is oriented at a dihedral angle of 5.58 (3)° with respect to the benzene ring. In the crystal structure, inter-molecular O-H⋯N and N-H⋯O hydrogen bonds link the mol-ecules, forming a three-dimensional network.Entities:
Year: 2008 PMID: 21581033 PMCID: PMC2959509 DOI: 10.1107/S1600536808034120
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C8H10N2O | |
| Monoclinic, | Melting point: 401(1) K |
| Hall symbol: -P 2yn | Mo |
| Cell parameters from 3781 reflections | |
| θ = 1.0–30.0° | |
| µ = 0.09 mm−1 | |
| β = 95.535 (2)° | |
| Block, pale yellow | |
| 0.34 × 0.28 × 0.26 mm |
| Enraf–Nonius KappaCCD diffractometer | 1761 independent reflections |
| Radiation source: fine-focus sealed tube | 1483 reflections with |
| horizontally mounted graphite crystal | |
| Detector resolution: 9 pixels mm-1 | θmax = 27.5°, θmin = 4.2° |
| φ and ω scans | |
| Absorption correction: multi-scan (DENZO; Otwinowski & Minor, 1997) | |
| 6132 measured reflections |
| Refinement on | Primary atom site location: structure-invariant direct methods |
| Least-squares matrix: full | Secondary atom site location: difference Fourier map |
| Hydrogen site location: mixed | |
| H atoms treated by a mixture of independent and constrained refinement | |
| 1761 reflections | (Δ/σ)max < 0.001 |
| 113 parameters | Δρmax = 0.24 e Å−3 |
| 0 restraints | Δρmin = −0.28 e Å−3 |
| 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 |
| O1 | 0.42570 (18) | 0.21270 (10) | 0.47528 (5) | 0.0203 (2) | |
| H1O | 0.273 (4) | 0.158 (2) | 0.4589 (11) | 0.049 (5)* | |
| N1 | 0.38949 (19) | 0.23108 (10) | 0.55574 (5) | 0.0168 (2) | |
| N2 | 0.4407 (2) | 0.42572 (11) | 0.91465 (6) | 0.0186 (2) | |
| H2N | 0.288 (4) | 0.3807 (18) | 0.9308 (10) | 0.035 (4)* | |
| H2M | 0.440 (4) | 0.525 (2) | 0.9257 (10) | 0.039 (4)* | |
| C1 | 0.5281 (2) | 0.34967 (12) | 0.67458 (6) | 0.0147 (2) | |
| C2 | 0.3462 (2) | 0.26638 (12) | 0.71490 (7) | 0.0179 (3) | |
| H2 | 0.2421 | 0.1914 | 0.6878 | 0.021* | |
| C3 | 0.3148 (2) | 0.29074 (13) | 0.79324 (7) | 0.0177 (3) | |
| H3 | 0.1903 | 0.2327 | 0.8192 | 0.021* | |
| C4 | 0.4655 (2) | 0.40050 (12) | 0.83408 (6) | 0.0156 (2) | |
| C5 | 0.6512 (2) | 0.48187 (13) | 0.79535 (7) | 0.0187 (3) | |
| H5 | 0.7588 | 0.5550 | 0.8230 | 0.022* | |
| C6 | 0.6810 (2) | 0.45726 (13) | 0.71660 (7) | 0.0178 (3) | |
| H6 | 0.8075 | 0.5146 | 0.6910 | 0.021* | |
| C7 | 0.5571 (2) | 0.32441 (12) | 0.59009 (6) | 0.0149 (2) | |
| C8 | 0.7713 (2) | 0.40782 (13) | 0.55104 (7) | 0.0195 (3) | |
| H8A | 0.7606 | 0.3815 | 0.4954 | 0.029* | |
| H8B | 0.9553 | 0.3841 | 0.5762 | 0.029* | |
| H8C | 0.7377 | 0.5123 | 0.5560 | 0.029* |
| O1 | 0.0222 (5) | 0.0272 (5) | 0.0121 (4) | −0.0020 (4) | 0.0043 (3) | −0.0033 (3) |
| N1 | 0.0190 (5) | 0.0200 (5) | 0.0118 (5) | 0.0020 (4) | 0.0038 (4) | −0.0010 (4) |
| N2 | 0.0230 (5) | 0.0190 (5) | 0.0141 (5) | 0.0005 (4) | 0.0032 (4) | −0.0012 (4) |
| C1 | 0.0144 (5) | 0.0144 (5) | 0.0156 (5) | 0.0029 (4) | 0.0024 (4) | 0.0005 (4) |
| C2 | 0.0191 (6) | 0.0168 (5) | 0.0178 (5) | −0.0026 (4) | 0.0018 (4) | −0.0015 (4) |
| C3 | 0.0172 (5) | 0.0182 (6) | 0.0181 (6) | −0.0017 (4) | 0.0042 (4) | 0.0018 (4) |
| C4 | 0.0168 (5) | 0.0160 (5) | 0.0138 (5) | 0.0042 (4) | 0.0012 (4) | 0.0003 (4) |
| C5 | 0.0200 (6) | 0.0173 (6) | 0.0187 (6) | −0.0025 (4) | 0.0017 (4) | −0.0036 (4) |
| C6 | 0.0179 (5) | 0.0176 (5) | 0.0185 (6) | −0.0017 (4) | 0.0041 (4) | 0.0006 (4) |
| C7 | 0.0139 (5) | 0.0158 (5) | 0.0153 (5) | 0.0039 (4) | 0.0027 (4) | 0.0019 (4) |
| C8 | 0.0177 (5) | 0.0231 (6) | 0.0182 (5) | −0.0019 (4) | 0.0045 (4) | 0.0010 (4) |
| O1—N1 | 1.4175 (11) | C3—C4 | 1.3961 (16) |
| O1—H1O | 0.92 (2) | C3—H3 | 0.9500 |
| N1—C7 | 1.2869 (15) | C4—C5 | 1.3905 (16) |
| N2—C4 | 1.4173 (14) | C5—C6 | 1.3903 (15) |
| N2—H2N | 0.916 (18) | C5—H5 | 0.9500 |
| N2—H2M | 0.929 (19) | C6—H6 | 0.9500 |
| C1—C6 | 1.3961 (16) | C7—C8 | 1.5026 (15) |
| C1—C2 | 1.4020 (16) | C8—H8A | 0.9800 |
| C1—C7 | 1.4872 (14) | C8—H8B | 0.9800 |
| C2—C3 | 1.3846 (15) | C8—H8C | 0.9800 |
| C2—H2 | 0.9500 | ||
| N1—O1—H1O | 100.9 (11) | C3—C4—N2 | 121.15 (10) |
| C7—N1—O1 | 113.10 (9) | C6—C5—C4 | 120.63 (10) |
| C4—N2—H2N | 111.6 (10) | C6—C5—H5 | 119.7 |
| C4—N2—H2M | 111.1 (11) | C4—C5—H5 | 119.7 |
| H2N—N2—H2M | 111.2 (15) | C5—C6—C1 | 121.09 (10) |
| C6—C1—C2 | 117.60 (10) | C5—C6—H6 | 119.5 |
| C6—C1—C7 | 121.17 (10) | C1—C6—H6 | 119.5 |
| C2—C1—C7 | 121.23 (10) | N1—C7—C1 | 115.76 (9) |
| C3—C2—C1 | 121.59 (11) | N1—C7—C8 | 124.95 (10) |
| C3—C2—H2 | 119.2 | C1—C7—C8 | 119.29 (10) |
| C1—C2—H2 | 119.2 | C7—C8—H8A | 109.5 |
| C2—C3—C4 | 120.12 (10) | C7—C8—H8B | 109.5 |
| C2—C3—H3 | 119.9 | H8A—C8—H8B | 109.5 |
| C4—C3—H3 | 119.9 | C7—C8—H8C | 109.5 |
| C5—C4—C3 | 118.94 (10) | H8A—C8—H8C | 109.5 |
| C5—C4—N2 | 119.85 (10) | H8B—C8—H8C | 109.5 |
| H··· | ||||
| O1—H1O···N2i | 0.92 (2) | 1.88 (2) | 2.7919 (14) | 169.8 (18) |
| N2—H2N···O1ii | 0.916 (18) | 2.165 (18) | 3.0790 (13) | 175.7 (15) |
| N2—H2M···N1iii | 0.929 (19) | 2.525 (19) | 3.3000 (14) | 141.0 (14) |
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| O1—H1 | 0.92 (2) | 1.88 (2) | 2.7919 (14) | 169.8 (18) |
| N2—H2 | 0.916 (18) | 2.165 (18) | 3.0790 (13) | 175.7 (15) |
| N2—H2 | 0.929 (19) | 2.525 (19) | 3.3000 (14) | 141.0 (14) |
Symmetry codes: (i) ; (ii) ; (iii) .