| Literature DB >> 21201483 |
Bo-Nian Liu, Shi-Gui Tang, Hao-Yuan Li, Ye-Ming Xu, Cheng Guo.
Abstract
In the title compound, C(8)H(6)ClNO(4), the mol-ecules are linked by C-H⋯O inter-actions to form a chain parallel to the a axis. The chains are further connected by slipped π-π stacking between symmetry-related benzene rings, with a centroid-to-centroid distance of 3.646 (2) Å and an inter-planar distance of 3.474 Å, resulting in an offset of 1.106 Å.Entities:
Year: 2008 PMID: 21201483 PMCID: PMC2960159 DOI: 10.1107/S1600536807067219
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C8H6ClNO4 | |
| Triclinic, | |
| Hall symbol: -P 1 | Mo |
| Cell parameters from 25 reflections | |
| θ = 9–13º | |
| µ = 0.41 mm−1 | |
| α = 98.39 (3)º | |
| β = 94.89 (3)º | Box, colourless |
| γ = 118.95 (3)º | 0.40 × 0.10 × 0.10 mm |
| Enraf–Nonius CAD-4 diffractometer | |
| Radiation source: fine-focus sealed tube | θmax = 26.0º |
| Monochromator: graphite | θmin = 2.2º |
| ω/2θ scans | |
| Absorption correction: ψ scan(North | |
| 3 standard reflections | |
| 1918 measured reflections | every 200 reflections |
| 1773 independent reflections | intensity decay: none |
| 1389 reflections with |
| Refinement on | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| H-atom parameters constrained | |
| | |
| (Δ/σ)max = 0.001 | |
| 1773 reflections | Δρmax = 0.21 e Å−3 |
| 128 parameters | Δρmin = −0.24 e Å−3 |
| Primary atom site location: structure-invariant direct methods | Extinction correction: none |
| 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 | −0.2034 (5) | 0.0805 (6) | 0.0613 (3) | 0.0722 (9) | |
| H1A | −0.3435 | −0.0080 | 0.0779 | 0.108* | |
| H1B | −0.1832 | 0.0171 | −0.0248 | 0.108* | |
| H1C | −0.1857 | 0.2143 | 0.0536 | 0.108* | |
| C2 | −0.0585 (4) | 0.1907 (4) | 0.3056 (3) | 0.0454 (6) | |
| C3 | 0.1131 (4) | 0.2225 (4) | 0.4166 (3) | 0.0417 (6) | |
| C4 | 0.2701 (4) | 0.1747 (4) | 0.3866 (3) | 0.0502 (7) | |
| H4 | 0.2672 | 0.1180 | 0.2941 | 0.060* | |
| C5 | 0.4285 (4) | 0.2108 (4) | 0.4925 (3) | 0.0536 (7) | |
| H5 | 0.5306 | 0.1769 | 0.4709 | 0.064* | |
| C6 | 0.4376 (4) | 0.2965 (4) | 0.6299 (3) | 0.0497 (6) | |
| C7 | 0.2808 (4) | 0.3452 (4) | 0.6588 (3) | 0.0459 (6) | |
| C8 | 0.1197 (4) | 0.3055 (4) | 0.5547 (3) | 0.0425 (6) | |
| H8 | 0.0146 | 0.3344 | 0.5771 | 0.051* | |
| Cl | 0.63808 (12) | 0.33572 (14) | 0.75859 (9) | 0.0731 (3) | |
| N1 | 0.2849 (4) | 0.4450 (4) | 0.8022 (2) | 0.0569 (6) | |
| O1 | −0.0490 (3) | 0.1079 (3) | 0.1782 (2) | 0.0591 (5) | |
| O2 | −0.1910 (3) | 0.2373 (3) | 0.3279 (2) | 0.0626 (6) | |
| O3 | 0.4525 (4) | 0.5930 (4) | 0.8665 (2) | 0.0838 (7) | |
| O4 | 0.1169 (4) | 0.3786 (4) | 0.8445 (2) | 0.0801 (7) |
| C1 | 0.075 (2) | 0.089 (2) | 0.0466 (17) | 0.0412 (19) | 0.0021 (15) | 0.0024 (15) |
| C2 | 0.0449 (14) | 0.0383 (13) | 0.0488 (15) | 0.0175 (11) | 0.0148 (11) | 0.0063 (11) |
| C3 | 0.0406 (13) | 0.0343 (12) | 0.0489 (14) | 0.0170 (10) | 0.0144 (11) | 0.0086 (10) |
| C4 | 0.0533 (15) | 0.0490 (15) | 0.0560 (16) | 0.0298 (13) | 0.0225 (13) | 0.0108 (12) |
| C5 | 0.0475 (15) | 0.0572 (16) | 0.0691 (18) | 0.0328 (13) | 0.0226 (13) | 0.0198 (14) |
| C6 | 0.0412 (13) | 0.0462 (14) | 0.0633 (17) | 0.0207 (12) | 0.0122 (12) | 0.0191 (12) |
| C7 | 0.0466 (14) | 0.0388 (13) | 0.0491 (15) | 0.0187 (11) | 0.0126 (11) | 0.0085 (11) |
| C8 | 0.0399 (13) | 0.0363 (12) | 0.0532 (15) | 0.0199 (10) | 0.0147 (11) | 0.0084 (10) |
| Cl | 0.0564 (5) | 0.0836 (6) | 0.0821 (6) | 0.0363 (4) | 0.0021 (4) | 0.0278 (4) |
| N1 | 0.0682 (16) | 0.0606 (15) | 0.0451 (13) | 0.0349 (13) | 0.0112 (12) | 0.0106 (11) |
| O1 | 0.0626 (12) | 0.0725 (13) | 0.0444 (10) | 0.0400 (11) | 0.0080 (9) | −0.0024 (9) |
| O2 | 0.0584 (12) | 0.0832 (15) | 0.0574 (12) | 0.0468 (11) | 0.0118 (9) | 0.0049 (10) |
| O3 | 0.0794 (16) | 0.0785 (16) | 0.0661 (15) | 0.0294 (13) | −0.0085 (12) | −0.0115 (12) |
| O4 | 0.0839 (17) | 0.0938 (18) | 0.0647 (14) | 0.0446 (14) | 0.0324 (13) | 0.0128 (12) |
| C1—O1 | 1.450 (4) | C4—H4 | 0.9300 |
| C1—H1A | 0.9600 | C5—C6 | 1.375 (4) |
| C1—H1B | 0.9600 | C5—H5 | 0.9300 |
| C1—H1C | 0.9600 | C6—C7 | 1.402 (4) |
| C2—O2 | 1.207 (3) | C6—Cl | 1.725 (3) |
| C2—O1 | 1.324 (3) | C7—C8 | 1.370 (4) |
| C2—C3 | 1.486 (4) | C7—N1 | 1.471 (3) |
| C3—C8 | 1.380 (4) | C8—H8 | 0.9300 |
| C3—C4 | 1.402 (3) | N1—O3 | 1.215 (3) |
| C4—C5 | 1.376 (4) | N1—O4 | 1.220 (3) |
| O1—C1—H1A | 109.5 | C6—C5—H5 | 119.6 |
| O1—C1—H1B | 109.5 | C4—C5—H5 | 119.6 |
| H1A—C1—H1B | 109.5 | C5—C6—C7 | 118.1 (3) |
| O1—C1—H1C | 109.5 | C5—C6—Cl | 118.7 (2) |
| H1A—C1—H1C | 109.5 | C7—C6—Cl | 123.1 (2) |
| H1B—C1—H1C | 109.5 | C8—C7—C6 | 121.6 (2) |
| O2—C2—O1 | 123.3 (3) | C8—C7—N1 | 117.2 (2) |
| O2—C2—C3 | 124.1 (2) | C6—C7—N1 | 121.2 (2) |
| O1—C2—C3 | 112.7 (2) | C7—C8—C3 | 120.1 (2) |
| C8—C3—C4 | 118.7 (2) | C7—C8—H8 | 120.0 |
| C8—C3—C2 | 118.5 (2) | C3—C8—H8 | 120.0 |
| C4—C3—C2 | 122.8 (2) | O3—N1—O4 | 125.0 (3) |
| C5—C4—C3 | 120.7 (2) | O3—N1—C7 | 117.8 (2) |
| C5—C4—H4 | 119.6 | O4—N1—C7 | 117.1 (2) |
| C3—C4—H4 | 119.6 | C2—O1—C1 | 116.9 (2) |
| C6—C5—C4 | 120.8 (2) |
| H··· | ||||
| C5—H5···O2i | 0.93 | 2.47 | 3.272 (3) | 145 |
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| C5—H5⋯O2i | 0.93 | 2.47 | 3.272 (3) | 145 |
Symmetry code: (i) .