| Literature DB >> 21578256 |
Jerry P Jasinski, Ray J Butcher, B Narayana, K Veena, H S Yathirajan.
Abstract
The title compound, C(15)H(10)Cl(2)O, is a chalcone with 3-chloro-phenyl and 4-chloro-phenyl substituents bonded at the opposite ends of a propenone group, the biologically active region. The dihedral angle between mean planes of these two chloro-substituted benzene rings is 46.7 (7)° compared to 46.0 (1) and 32.4 (1)° in similar published sructures. The angles between the mean plane of the prop-2-en-1-one group and the mean planes of the 3-chloro-phenyl and 4-chloro-phenyl rings are 24.1 (2) and 29.63°, respectively. While no classical hydrogen bonds are present, weak inter-molecular C-H⋯π-ring inter-actions are observed, which contribute to the stability of crystal packing.Entities:
Year: 2009 PMID: 21578256 PMCID: PMC2971255 DOI: 10.1107/S1600536809037805
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C15H10Cl2O | |
| Triclinic, | |
| Hall symbol: -P 1 | Melting point = 406–408 K |
| Cu | |
| Cell parameters from 2900 reflections | |
| θ = 6.2–73.9° | |
| α = 102.821 (10)° | µ = 4.61 mm−1 |
| β = 95.003 (10)° | |
| γ = 92.933 (11)° | Block, colorless |
| 0.53 × 0.33 × 0.28 mm |
| Oxford Diffraction Gemini R CCD diffractometer | 2402 independent reflections |
| Radiation source: Enhance (Cu) X-ray Source | 2147 reflections with |
| graphite | |
| Detector resolution: 10.5081 pixels mm-1 | θmax = 73.9°, θmin = 6.2° |
| ω scans | |
| Absorption correction: multi-scan ( | |
| 4041 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: inferred from neighbouring sites | |
| H-atom parameters constrained | |
| 2402 reflections | (Δ/σ)max < 0.001 |
| 163 parameters | Δρmax = 0.48 e Å−3 |
| 0 restraints | Δρmin = −0.38 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 |
| Cl1 | 0.57079 (8) | −0.05763 (7) | 0.10784 (3) | 0.0235 (2) | |
| Cl2 | −0.09011 (9) | 0.72931 (8) | 0.93921 (3) | 0.0286 (2) | |
| O1 | 0.7088 (2) | 0.2250 (2) | 0.47821 (10) | 0.0233 (4) | |
| C1 | 0.3892 (3) | 0.1004 (3) | 0.36950 (14) | 0.0161 (4) | |
| C2 | 0.5165 (3) | 0.0748 (3) | 0.29158 (14) | 0.0154 (4) | |
| H2A | 0.6696 | 0.1269 | 0.2980 | 0.019* | |
| C3 | 0.4159 (3) | −0.0275 (3) | 0.20525 (14) | 0.0164 (4) | |
| C4 | 0.1936 (4) | −0.1087 (3) | 0.19394 (15) | 0.0203 (4) | |
| H4A | 0.1276 | −0.1790 | 0.1343 | 0.024* | |
| C5 | 0.0704 (3) | −0.0849 (3) | 0.27143 (15) | 0.0198 (4) | |
| H5A | −0.0810 | −0.1409 | 0.2649 | 0.024* | |
| C6 | 0.1652 (3) | 0.0201 (3) | 0.35873 (14) | 0.0179 (4) | |
| H6A | 0.0777 | 0.0371 | 0.4110 | 0.021* | |
| C7 | 0.5008 (3) | 0.2095 (3) | 0.46235 (14) | 0.0177 (4) | |
| C8 | 0.3516 (3) | 0.2980 (3) | 0.53315 (14) | 0.0191 (4) | |
| H8A | 0.1959 | 0.3100 | 0.5139 | 0.023* | |
| C9 | 0.4301 (3) | 0.3613 (3) | 0.62341 (14) | 0.0169 (4) | |
| H9A | 0.5857 | 0.3439 | 0.6403 | 0.020* | |
| C10 | 0.3008 (3) | 0.4551 (3) | 0.69935 (14) | 0.0161 (4) | |
| C11 | 0.3922 (3) | 0.4779 (3) | 0.79294 (14) | 0.0174 (4) | |
| H11A | 0.5390 | 0.4357 | 0.8058 | 0.021* | |
| C12 | 0.2738 (3) | 0.5603 (3) | 0.86707 (14) | 0.0202 (4) | |
| H12A | 0.3365 | 0.5729 | 0.9302 | 0.024* | |
| C13 | 0.0614 (4) | 0.6243 (3) | 0.84698 (14) | 0.0189 (4) | |
| C14 | −0.0325 (3) | 0.6083 (3) | 0.75532 (14) | 0.0177 (4) | |
| H14A | −0.1765 | 0.6555 | 0.7430 | 0.021* | |
| C15 | 0.0860 (3) | 0.5226 (3) | 0.68181 (14) | 0.0167 (4) | |
| H15A | 0.0213 | 0.5094 | 0.6189 | 0.020* |
| Cl1 | 0.0286 (3) | 0.0275 (3) | 0.0145 (3) | 0.0029 (2) | 0.0075 (2) | 0.0028 (2) |
| Cl2 | 0.0267 (3) | 0.0389 (4) | 0.0174 (3) | 0.0087 (2) | 0.0064 (2) | −0.0026 (2) |
| O1 | 0.0188 (7) | 0.0308 (9) | 0.0191 (7) | 0.0014 (6) | 0.0024 (6) | 0.0028 (6) |
| C1 | 0.0191 (9) | 0.0144 (9) | 0.0156 (10) | 0.0038 (7) | 0.0033 (7) | 0.0041 (7) |
| C2 | 0.0154 (9) | 0.0139 (9) | 0.0177 (10) | 0.0025 (7) | 0.0025 (7) | 0.0045 (7) |
| C3 | 0.0193 (10) | 0.0154 (9) | 0.0154 (9) | 0.0045 (7) | 0.0053 (7) | 0.0035 (7) |
| C4 | 0.0231 (10) | 0.0164 (10) | 0.0196 (10) | 0.0005 (8) | −0.0013 (8) | 0.0017 (8) |
| C5 | 0.0162 (9) | 0.0168 (10) | 0.0264 (11) | −0.0002 (8) | 0.0005 (8) | 0.0063 (8) |
| C6 | 0.0169 (9) | 0.0189 (10) | 0.0201 (10) | 0.0038 (8) | 0.0066 (7) | 0.0067 (8) |
| C7 | 0.0205 (10) | 0.0182 (10) | 0.0160 (10) | 0.0031 (8) | 0.0048 (7) | 0.0055 (8) |
| C8 | 0.0193 (10) | 0.0214 (10) | 0.0167 (10) | 0.0041 (8) | 0.0049 (7) | 0.0029 (8) |
| C9 | 0.0181 (9) | 0.0142 (9) | 0.0194 (10) | 0.0007 (7) | 0.0053 (7) | 0.0047 (8) |
| C10 | 0.0182 (10) | 0.0132 (9) | 0.0168 (10) | −0.0016 (7) | 0.0038 (7) | 0.0031 (7) |
| C11 | 0.0183 (10) | 0.0147 (10) | 0.0183 (10) | −0.0002 (7) | 0.0010 (7) | 0.0026 (7) |
| C12 | 0.0230 (10) | 0.0213 (10) | 0.0148 (9) | 0.0004 (8) | 0.0007 (7) | 0.0015 (8) |
| C13 | 0.0216 (10) | 0.0174 (10) | 0.0167 (10) | −0.0002 (8) | 0.0067 (8) | 0.0006 (7) |
| C14 | 0.0169 (9) | 0.0150 (10) | 0.0211 (10) | 0.0006 (7) | 0.0033 (7) | 0.0036 (8) |
| C15 | 0.0194 (10) | 0.0162 (10) | 0.0142 (9) | −0.0004 (8) | 0.0014 (7) | 0.0034 (7) |
| Cl1—C3 | 1.7414 (19) | C8—C9 | 1.335 (3) |
| Cl2—C13 | 1.743 (2) | C8—H8A | 0.9500 |
| O1—C7 | 1.221 (2) | C9—C10 | 1.469 (3) |
| C1—C6 | 1.398 (3) | C9—H9A | 0.9500 |
| C1—C2 | 1.405 (3) | C10—C11 | 1.401 (3) |
| C1—C7 | 1.495 (3) | C10—C15 | 1.405 (3) |
| C2—C3 | 1.386 (3) | C11—C12 | 1.385 (3) |
| C2—H2A | 0.9500 | C11—H11A | 0.9500 |
| C3—C4 | 1.391 (3) | C12—C13 | 1.389 (3) |
| C4—C5 | 1.385 (3) | C12—H12A | 0.9500 |
| C4—H4A | 0.9500 | C13—C14 | 1.386 (3) |
| C5—C6 | 1.393 (3) | C14—C15 | 1.386 (3) |
| C5—H5A | 0.9500 | C14—H14A | 0.9500 |
| C6—H6A | 0.9500 | C15—H15A | 0.9500 |
| C7—C8 | 1.480 (3) | ||
| C6—C1—C2 | 119.42 (18) | C7—C8—H8A | 119.1 |
| C6—C1—C7 | 122.00 (17) | C8—C9—C10 | 126.68 (19) |
| C2—C1—C7 | 118.57 (17) | C8—C9—H9A | 116.7 |
| C3—C2—C1 | 119.19 (17) | C10—C9—H9A | 116.7 |
| C3—C2—H2A | 120.4 | C11—C10—C15 | 118.27 (19) |
| C1—C2—H2A | 120.4 | C11—C10—C9 | 119.40 (18) |
| C2—C3—C4 | 121.81 (18) | C15—C10—C9 | 122.33 (18) |
| C2—C3—Cl1 | 119.60 (15) | C12—C11—C10 | 121.58 (19) |
| C4—C3—Cl1 | 118.59 (16) | C12—C11—H11A | 119.2 |
| C5—C4—C3 | 118.61 (19) | C10—C11—H11A | 119.2 |
| C5—C4—H4A | 120.7 | C11—C12—C13 | 118.49 (19) |
| C3—C4—H4A | 120.7 | C11—C12—H12A | 120.8 |
| C4—C5—C6 | 120.93 (18) | C13—C12—H12A | 120.8 |
| C4—C5—H5A | 119.5 | C14—C13—C12 | 121.62 (19) |
| C6—C5—H5A | 119.5 | C14—C13—Cl2 | 119.12 (16) |
| C5—C6—C1 | 120.02 (18) | C12—C13—Cl2 | 119.25 (16) |
| C5—C6—H6A | 120.0 | C15—C14—C13 | 119.30 (19) |
| C1—C6—H6A | 120.0 | C15—C14—H14A | 120.4 |
| O1—C7—C8 | 121.66 (19) | C13—C14—H14A | 120.4 |
| O1—C7—C1 | 120.42 (18) | C14—C15—C10 | 120.71 (18) |
| C8—C7—C1 | 117.93 (17) | C14—C15—H15A | 119.6 |
| C9—C8—C7 | 121.72 (19) | C10—C15—H15A | 119.6 |
| C9—C8—H8A | 119.1 | ||
| C6—C1—C2—C3 | 1.0 (3) | C1—C7—C8—C9 | 164.85 (19) |
| C7—C1—C2—C3 | 179.45 (17) | C7—C8—C9—C10 | 178.46 (18) |
| C1—C2—C3—C4 | −1.3 (3) | C8—C9—C10—C11 | 166.7 (2) |
| C1—C2—C3—Cl1 | 179.19 (14) | C8—C9—C10—C15 | −12.9 (3) |
| C2—C3—C4—C5 | 0.4 (3) | C15—C10—C11—C12 | 1.6 (3) |
| Cl1—C3—C4—C5 | 179.94 (15) | C9—C10—C11—C12 | −178.04 (17) |
| C3—C4—C5—C6 | 0.8 (3) | C10—C11—C12—C13 | −1.2 (3) |
| C4—C5—C6—C1 | −1.1 (3) | C11—C12—C13—C14 | −0.4 (3) |
| C2—C1—C6—C5 | 0.2 (3) | C11—C12—C13—Cl2 | −179.77 (15) |
| C7—C1—C6—C5 | −178.20 (18) | C12—C13—C14—C15 | 1.4 (3) |
| C6—C1—C7—O1 | 155.76 (19) | Cl2—C13—C14—C15 | −179.14 (14) |
| C2—C1—C7—O1 | −22.7 (3) | C13—C14—C15—C10 | −1.0 (3) |
| C6—C1—C7—C8 | −24.7 (3) | C11—C10—C15—C14 | −0.4 (3) |
| C2—C1—C7—C8 | 156.89 (18) | C9—C10—C15—C14 | 179.15 (17) |
| O1—C7—C8—C9 | −15.6 (3) |
| H··· | ||||
| C2—H2A···Cg2i | 0.95 | 2.98 | 3.608 (2) | 125 |
| C5—H5A···Cg2ii | 0.95 | 2.88 | 3.488 (2) | 126 |
| C14—H14A···Cg1iii | 0.95 | 2.77 | 3.474 (2) | 131 |
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| C2—H2 | 0.95 | 2.98 | 3.608 (2) | 125 |
| C5—H5 | 0.95 | 2.88 | 3.488 (2) | 126 |
| C14—H14 | 0.95 | 2.77 | 3.474 (2) | 131 |
Symmetry codes: (i) ; (ii) ; (iii) . Cg1 is the centroid of the C1–C6 ring and Cg2 is the centroid of the C10–C15 ring.