| Literature DB >> 21202628 |
Neil Vasdev, Padmakar V Kulkarni, Alan A Wilson, Sylvain Houle, Alan J Lough.
Abstract
The non-H atoms of the title mol-ecule, C(10)H(8)BrNO, are essentially coplanar. In the crystal structure, mol-ecules are linked by weak inter-molecular C-H⋯π(arene) inter-actions, forming one-dimensional chains along the a axis.Entities:
Year: 2008 PMID: 21202628 PMCID: PMC2961403 DOI: 10.1107/S1600536808014591
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C10H8BrNO | |
| Orthorhombic, | Mo |
| Hall symbol: P 2ac 2ab | Cell parameters from 6134 reflections |
| θ = 2.9–27.5º | |
| µ = 4.56 mm−1 | |
| Needle, colourless | |
| 0.30 × 0.12 × 0.11 mm |
| Nonius KappaCCD diffractometer | 2026 independent reflections |
| Radiation source: fine-focus sealed tube | 1872 reflections with |
| Monochromator: graphite | |
| Detector resolution: 9 pixels mm-1 | θmax = 27.5º |
| θmin = 2.9º | |
| φ scans and ω scans with κ offsets | |
| Absorption correction: multi-scan(SORTAV; Blessing 1995) | |
| 6134 measured reflections |
| Refinement on | H-atom parameters constrained |
| Least-squares matrix: full | |
| (Δ/σ)max = 0.001 | |
| Δρmax = 0.38 e Å−3 | |
| Δρmin = −0.40 e Å−3 | |
| 2026 reflections | Extinction correction: SHELXTL (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| 120 parameters | Extinction coefficient: 0.0062 (8) |
| Primary atom site location: structure-invariant direct methods | Absolute structure: Flack (1983), 815 Friedel pairs |
| Secondary atom site location: difference Fourier map | Flack parameter: −0.017 (11) |
| Hydrogen site location: inferred from neighbouring sites |
| 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 |
| Br1 | 1.02034 (5) | 0.36147 (2) | 0.509948 (18) | 0.02940 (11) | |
| O1 | 0.1007 (3) | 0.62674 (16) | 0.72708 (14) | 0.0259 (4) | |
| N1 | 0.4260 (4) | 0.64140 (17) | 0.58326 (14) | 0.0233 (4) | |
| C1 | 0.5884 (5) | 0.6481 (2) | 0.51287 (18) | 0.0278 (6) | |
| H1A | 0.5819 | 0.7126 | 0.4752 | 0.033* | |
| C2 | 0.7717 (5) | 0.5671 (2) | 0.48878 (19) | 0.0268 (6) | |
| H2A | 0.8842 | 0.5768 | 0.4366 | 0.032* | |
| C3 | 0.7833 (5) | 0.4746 (2) | 0.54217 (19) | 0.0239 (6) | |
| C4 | 0.6190 (5) | 0.4611 (2) | 0.62176 (17) | 0.0188 (5) | |
| C5 | 0.6239 (5) | 0.3694 (2) | 0.68244 (18) | 0.0232 (6) | |
| H5A | 0.7429 | 0.3109 | 0.6718 | 0.028* | |
| C6 | 0.4556 (5) | 0.3650 (2) | 0.75705 (17) | 0.0243 (6) | |
| H6A | 0.4624 | 0.3038 | 0.7986 | 0.029* | |
| C7 | 0.2739 (5) | 0.4487 (2) | 0.77325 (18) | 0.0235 (6) | |
| H7A | 0.1558 | 0.4424 | 0.8241 | 0.028* | |
| C8 | 0.2656 (5) | 0.5400 (2) | 0.71586 (17) | 0.0195 (5) | |
| C9 | 0.4408 (5) | 0.54916 (19) | 0.63810 (16) | 0.0199 (5) | |
| C10 | −0.0731 (5) | 0.6201 (2) | 0.80535 (18) | 0.0271 (7) | |
| H10C | −0.1784 | 0.6872 | 0.8083 | 0.041* | |
| H10D | 0.0269 | 0.6126 | 0.8635 | 0.041* | |
| H10A | −0.1865 | 0.5559 | 0.7978 | 0.041* |
| Br1 | 0.02472 (15) | 0.03108 (16) | 0.03239 (16) | 0.00303 (10) | 0.00306 (11) | −0.00756 (11) |
| O1 | 0.0264 (10) | 0.0255 (11) | 0.0259 (10) | 0.0030 (8) | 0.0047 (7) | 0.0004 (8) |
| N1 | 0.0281 (10) | 0.0212 (11) | 0.0206 (11) | −0.0009 (9) | −0.0021 (8) | 0.0001 (10) |
| C1 | 0.0339 (13) | 0.0259 (14) | 0.0237 (14) | −0.0019 (10) | 0.0030 (10) | 0.0087 (14) |
| C2 | 0.0265 (12) | 0.0299 (14) | 0.0240 (14) | −0.0065 (10) | 0.0049 (12) | 0.0001 (13) |
| C3 | 0.0215 (13) | 0.0257 (14) | 0.0246 (15) | −0.0015 (10) | −0.0025 (10) | −0.0078 (12) |
| C4 | 0.0210 (13) | 0.0184 (13) | 0.0169 (13) | −0.0037 (9) | −0.0018 (9) | −0.0016 (11) |
| C5 | 0.0224 (12) | 0.0215 (14) | 0.0257 (14) | 0.0016 (11) | −0.0064 (10) | −0.0019 (12) |
| C6 | 0.0328 (15) | 0.0176 (13) | 0.0225 (13) | −0.0037 (13) | −0.0074 (11) | 0.0035 (11) |
| C7 | 0.0257 (14) | 0.0258 (15) | 0.0191 (14) | −0.0088 (11) | 0.0018 (11) | −0.0010 (11) |
| C8 | 0.0208 (13) | 0.0185 (13) | 0.0193 (13) | −0.0003 (10) | −0.0021 (10) | −0.0014 (11) |
| C9 | 0.0207 (12) | 0.0204 (13) | 0.0186 (12) | −0.0042 (10) | −0.0046 (10) | 0.0010 (10) |
| C10 | 0.0240 (14) | 0.0314 (17) | 0.0258 (15) | 0.0015 (12) | 0.0047 (11) | −0.0028 (12) |
| Br1—C3 | 1.895 (2) | C4—C9 | 1.429 (3) |
| O1—C8 | 1.362 (3) | C5—C6 | 1.374 (4) |
| O1—C10 | 1.433 (3) | C5—H5A | 0.9500 |
| N1—C1 | 1.309 (3) | C6—C7 | 1.402 (4) |
| N1—C9 | 1.367 (3) | C6—H6A | 0.9500 |
| C1—C2 | 1.407 (4) | C7—C8 | 1.378 (4) |
| C1—H1A | 0.9500 | C7—H7A | 0.9500 |
| C2—C3 | 1.357 (3) | C8—C9 | 1.434 (3) |
| C2—H2A | 0.9500 | C10—H10C | 0.9800 |
| C3—C4 | 1.425 (3) | C10—H10D | 0.9800 |
| C4—C5 | 1.409 (4) | C10—H10A | 0.9800 |
| C8—O1—C10 | 116.0 (2) | C5—C6—H6A | 119.3 |
| C1—N1—C9 | 116.9 (2) | C7—C6—H6A | 119.3 |
| N1—C1—C2 | 125.0 (2) | C8—C7—C6 | 120.4 (2) |
| N1—C1—H1A | 117.5 | C8—C7—H7A | 119.8 |
| C2—C1—H1A | 117.5 | C6—C7—H7A | 119.8 |
| C3—C2—C1 | 118.1 (2) | O1—C8—C7 | 124.8 (2) |
| C3—C2—H2A | 121.0 | O1—C8—C9 | 115.1 (2) |
| C1—C2—H2A | 121.0 | C7—C8—C9 | 120.0 (2) |
| C2—C3—C4 | 121.0 (2) | N1—C9—C4 | 123.7 (2) |
| C2—C3—Br1 | 119.4 (2) | N1—C9—C8 | 118.0 (2) |
| C4—C3—Br1 | 119.58 (19) | C4—C9—C8 | 118.3 (2) |
| C5—C4—C3 | 124.6 (2) | O1—C10—H10C | 109.5 |
| C5—C4—C9 | 120.1 (2) | O1—C10—H10D | 109.5 |
| C3—C4—C9 | 115.3 (2) | H10C—C10—H10D | 109.5 |
| C6—C5—C4 | 119.6 (3) | O1—C10—H10A | 109.5 |
| C6—C5—H5A | 120.2 | H10C—C10—H10A | 109.5 |
| C4—C5—H5A | 120.2 | H10D—C10—H10A | 109.5 |
| C5—C6—C7 | 121.5 (2) |
| H··· | ||||
| C10—H10A···Cgi | 0.98 | 2.66 | 3.531 (3) | 148 |
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| C10—H10 | 0.98 | 2.66 | 3.531 (3) | 148 |
Symmetry code: (i) . Cg is the centroid of the C4–C9 ring.