| Literature DB >> 25844242 |
Muniyappan Govindhan1, Kathavarayan Subramanian2, Vijayan Viswanathan3, Devadasan Velmurugan3.
Abstract
In the title compound C19H11F3N2O2, the oxa-diazole ring and the naphthalene ring system are approximately planar (r.m.s. deviations of 0.001 and 0.020 Å, respectively) and the oxa-diazole ring makes dihedral angles of 13.11 (1) and 7.59 (1)° with the naphthalene ring system and the tri-fluoro-phenyl ring, respectively. In the crystal, C-H⋯N hydrogen bonds link mol-ecules into chains along the a-axis direction, while C-H⋯F contacts form additional chains along the ac diagonal. These contacts generate sheets of mol-ecules approximately parallel to the (011) plane.Entities:
Keywords: 1,3,4-oxadiazole; crystal structure; hydrogen bonding; naphthalen-1-yloxy; trifluorophenyl
Year: 2015 PMID: 25844242 PMCID: PMC4350736 DOI: 10.1107/S2056989015003205
Source DB: PubMed Journal: Acta Crystallogr E Crystallogr Commun
| C19H11F3N2O2 | |
| Triclinic, | |
| Hall symbol: -P 1 | Mo |
| Cell parameters from 3330 reflections | |
| θ = 1.3–26.8° | |
| µ = 0.12 mm−1 | |
| α = 78.673 (3)° | |
| β = 78.404 (3)° | Block, colourless |
| γ = 65.370 (3)° | 0.25 × 0.15 × 0.10 mm |
| Bruker SMART APEXII area-detector diffractometer | 3330 independent reflections |
| Radiation source: fine-focus sealed tube | 2402 reflections with |
| Graphite monochromator | |
| ω and φ scans | θmax = 26.8°, θmin = 1.3° |
| Absorption correction: multi-scan ( | |
| 11539 measured reflections |
| 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 | |
| 3330 reflections | Δρmax = 0.22 e Å−3 |
| 236 parameters | Δρmin = −0.31 e Å−3 |
| 0 restraints | Extinction correction: |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.006 (2) |
| Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
| Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2sigma(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
| C1 | 0.4888 (3) | 0.3315 (3) | 0.37814 (13) | 0.0588 (5) | |
| H1 | 0.5114 | 0.2802 | 0.4354 | 0.071* | |
| C2 | 0.6415 (3) | 0.3567 (3) | 0.31604 (15) | 0.0691 (6) | |
| H2 | 0.7656 | 0.3212 | 0.3326 | 0.083* | |
| C3 | 0.6121 (3) | 0.4313 (3) | 0.23273 (14) | 0.0673 (5) | |
| H3 | 0.7168 | 0.4439 | 0.1925 | 0.081* | |
| C4 | 0.4239 (3) | 0.4907 (3) | 0.20584 (12) | 0.0543 (5) | |
| C5 | 0.3867 (3) | 0.5717 (3) | 0.12011 (13) | 0.0670 (5) | |
| H5 | 0.4891 | 0.5862 | 0.0789 | 0.080* | |
| C6 | 0.2045 (4) | 0.6293 (3) | 0.09616 (14) | 0.0744 (6) | |
| H6 | 0.1830 | 0.6829 | 0.0390 | 0.089* | |
| C7 | 0.0489 (3) | 0.6080 (3) | 0.15737 (14) | 0.0699 (6) | |
| H7 | −0.0759 | 0.6483 | 0.1406 | 0.084* | |
| C8 | 0.0783 (3) | 0.5289 (3) | 0.24135 (13) | 0.0578 (5) | |
| H8 | −0.0265 | 0.5158 | 0.2814 | 0.069* | |
| C9 | 0.2666 (3) | 0.4668 (2) | 0.26779 (11) | 0.0474 (4) | |
| C10 | 0.3070 (3) | 0.3827 (2) | 0.35414 (11) | 0.0483 (4) | |
| C11 | 0.1842 (3) | 0.2579 (3) | 0.49334 (11) | 0.0540 (4) | |
| H11A | 0.2063 | 0.3365 | 0.5285 | 0.065* | |
| H11B | 0.2998 | 0.1361 | 0.4898 | 0.065* | |
| C12 | 0.0033 (3) | 0.2197 (2) | 0.53195 (11) | 0.0491 (4) | |
| C13 | −0.1893 (3) | 0.1278 (2) | 0.63030 (12) | 0.0516 (4) | |
| C14 | −0.2556 (3) | 0.0518 (3) | 0.71692 (12) | 0.0595 (5) | |
| C15 | −0.1309 (4) | −0.0186 (3) | 0.78032 (14) | 0.0767 (6) | |
| H15 | −0.0047 | −0.0168 | 0.7679 | 0.092* | |
| C16 | −0.1951 (6) | −0.0916 (4) | 0.86218 (16) | 0.1020 (10) | |
| C17 | −0.3818 (6) | −0.0941 (4) | 0.88135 (19) | 0.1061 (12) | |
| C18 | −0.5058 (5) | −0.0245 (4) | 0.8207 (2) | 0.1034 (11) | |
| H18 | −0.6323 | −0.0254 | 0.8342 | 0.124* | |
| C19 | −0.4444 (4) | 0.0477 (3) | 0.73917 (17) | 0.0761 (7) | |
| N1 | −0.1442 (3) | 0.2435 (2) | 0.49547 (10) | 0.0622 (4) | |
| N2 | −0.2727 (2) | 0.1818 (2) | 0.56086 (11) | 0.0620 (4) | |
| O1 | 0.14915 (18) | 0.35881 (19) | 0.40929 (8) | 0.0582 (4) | |
| O2 | −0.01186 (18) | 0.14762 (17) | 0.61719 (7) | 0.0520 (3) | |
| F1 | −0.0726 (4) | −0.1601 (3) | 0.92306 (11) | 0.1607 (9) | |
| F2 | −0.4342 (4) | −0.1687 (3) | 0.96228 (11) | 0.1684 (11) | |
| F3 | −0.5703 (2) | 0.1171 (3) | 0.68014 (13) | 0.1095 (6) |
| C1 | 0.0581 (11) | 0.0638 (11) | 0.0548 (11) | −0.0257 (9) | −0.0118 (9) | 0.0004 (9) |
| C2 | 0.0548 (11) | 0.0827 (14) | 0.0737 (14) | −0.0332 (10) | −0.0113 (10) | −0.0018 (11) |
| C3 | 0.0564 (11) | 0.0796 (13) | 0.0672 (13) | −0.0357 (10) | 0.0033 (10) | −0.0038 (10) |
| C4 | 0.0632 (11) | 0.0516 (9) | 0.0494 (10) | −0.0280 (8) | 0.0000 (8) | −0.0044 (8) |
| C5 | 0.0804 (14) | 0.0697 (12) | 0.0523 (11) | −0.0389 (11) | 0.0030 (10) | −0.0017 (9) |
| C6 | 0.0996 (18) | 0.0763 (14) | 0.0483 (11) | −0.0395 (13) | −0.0165 (11) | 0.0081 (10) |
| C7 | 0.0737 (13) | 0.0743 (13) | 0.0643 (13) | −0.0317 (11) | −0.0240 (11) | 0.0069 (10) |
| C8 | 0.0586 (11) | 0.0608 (11) | 0.0557 (11) | −0.0285 (9) | −0.0075 (9) | 0.0000 (8) |
| C9 | 0.0538 (10) | 0.0431 (8) | 0.0461 (9) | −0.0215 (7) | −0.0049 (7) | −0.0038 (7) |
| C10 | 0.0498 (10) | 0.0478 (9) | 0.0468 (10) | −0.0212 (7) | −0.0020 (8) | −0.0047 (7) |
| C11 | 0.0594 (11) | 0.0543 (10) | 0.0452 (10) | −0.0225 (8) | −0.0082 (8) | 0.0021 (8) |
| C12 | 0.0587 (10) | 0.0461 (9) | 0.0404 (9) | −0.0205 (8) | −0.0072 (8) | −0.0006 (7) |
| C13 | 0.0597 (11) | 0.0440 (9) | 0.0495 (10) | −0.0213 (8) | −0.0028 (8) | −0.0049 (7) |
| C14 | 0.0797 (13) | 0.0438 (9) | 0.0496 (11) | −0.0250 (9) | 0.0047 (9) | −0.0061 (8) |
| C15 | 0.1047 (18) | 0.0658 (12) | 0.0487 (12) | −0.0290 (12) | −0.0033 (11) | −0.0001 (9) |
| C16 | 0.170 (3) | 0.0668 (14) | 0.0494 (13) | −0.0327 (17) | −0.0085 (17) | 0.0005 (11) |
| C17 | 0.174 (3) | 0.0633 (14) | 0.0662 (17) | −0.0576 (18) | 0.047 (2) | −0.0151 (12) |
| C18 | 0.130 (3) | 0.0742 (16) | 0.100 (2) | −0.0583 (17) | 0.0498 (19) | −0.0246 (15) |
| C19 | 0.0887 (16) | 0.0575 (12) | 0.0788 (15) | −0.0364 (11) | 0.0182 (13) | −0.0137 (11) |
| N1 | 0.0677 (10) | 0.0713 (10) | 0.0480 (9) | −0.0315 (8) | −0.0122 (8) | 0.0060 (7) |
| N2 | 0.0668 (10) | 0.0677 (10) | 0.0549 (10) | −0.0327 (8) | −0.0108 (8) | 0.0020 (8) |
| O1 | 0.0534 (7) | 0.0692 (8) | 0.0444 (7) | −0.0241 (6) | −0.0046 (5) | 0.0083 (6) |
| O2 | 0.0606 (8) | 0.0538 (7) | 0.0410 (7) | −0.0243 (6) | −0.0080 (5) | 0.0010 (5) |
| F1 | 0.249 (3) | 0.1436 (16) | 0.0596 (10) | −0.0549 (17) | −0.0400 (13) | 0.0235 (10) |
| F2 | 0.303 (3) | 0.1016 (12) | 0.0759 (11) | −0.1005 (16) | 0.0777 (14) | −0.0141 (9) |
| F3 | 0.0853 (10) | 0.1222 (13) | 0.1295 (14) | −0.0566 (9) | 0.0005 (10) | −0.0139 (11) |
| C1—C10 | 1.361 (3) | C11—C12 | 1.487 (3) |
| C1—C2 | 1.401 (3) | C11—H11A | 0.9700 |
| C1—H1 | 0.9300 | C11—H11B | 0.9700 |
| C2—C3 | 1.349 (3) | C12—N1 | 1.277 (2) |
| C2—H2 | 0.9300 | C12—O2 | 1.351 (2) |
| C3—C4 | 1.415 (3) | C13—N2 | 1.283 (2) |
| C3—H3 | 0.9300 | C13—O2 | 1.368 (2) |
| C4—C5 | 1.404 (3) | C13—C14 | 1.451 (3) |
| C4—C9 | 1.421 (2) | C14—C15 | 1.381 (3) |
| C5—C6 | 1.355 (3) | C14—C19 | 1.398 (3) |
| C5—H5 | 0.9300 | C15—C16 | 1.378 (3) |
| C6—C7 | 1.400 (3) | C15—H15 | 0.9300 |
| C6—H6 | 0.9300 | C16—F1 | 1.340 (4) |
| C7—C8 | 1.364 (3) | C16—C17 | 1.376 (5) |
| C7—H7 | 0.9300 | C17—F2 | 1.344 (3) |
| C8—C9 | 1.410 (3) | C17—C18 | 1.344 (5) |
| C8—H8 | 0.9300 | C18—C19 | 1.366 (4) |
| C9—C10 | 1.422 (2) | C18—H18 | 0.9300 |
| C10—O1 | 1.375 (2) | C19—F3 | 1.334 (3) |
| C11—O1 | 1.411 (2) | N1—N2 | 1.413 (2) |
| C10—C1—C2 | 119.51 (18) | C12—C11—H11A | 110.5 |
| C10—C1—H1 | 120.2 | O1—C11—H11B | 110.5 |
| C2—C1—H1 | 120.2 | C12—C11—H11B | 110.5 |
| C3—C2—C1 | 121.32 (19) | H11A—C11—H11B | 108.7 |
| C3—C2—H2 | 119.3 | N1—C12—O2 | 113.26 (16) |
| C1—C2—H2 | 119.3 | N1—C12—C11 | 129.06 (16) |
| C2—C3—C4 | 120.79 (18) | O2—C12—C11 | 117.67 (15) |
| C2—C3—H3 | 119.6 | N2—C13—O2 | 112.38 (16) |
| C4—C3—H3 | 119.6 | N2—C13—C14 | 129.71 (19) |
| C5—C4—C3 | 122.47 (18) | O2—C13—C14 | 117.91 (17) |
| C5—C4—C9 | 118.68 (18) | C15—C14—C19 | 118.1 (2) |
| C3—C4—C9 | 118.85 (18) | C15—C14—C13 | 120.0 (2) |
| C6—C5—C4 | 121.36 (19) | C19—C14—C13 | 122.0 (2) |
| C6—C5—H5 | 119.3 | C16—C15—C14 | 119.4 (3) |
| C4—C5—H5 | 119.3 | C16—C15—H15 | 120.3 |
| C5—C6—C7 | 120.0 (2) | C14—C15—H15 | 120.3 |
| C5—C6—H6 | 120.0 | F1—C16—C17 | 120.4 (3) |
| C7—C6—H6 | 120.0 | F1—C16—C15 | 118.9 (3) |
| C8—C7—C6 | 120.7 (2) | C17—C16—C15 | 120.7 (3) |
| C8—C7—H7 | 119.6 | F2—C17—C18 | 121.7 (4) |
| C6—C7—H7 | 119.6 | F2—C17—C16 | 117.6 (4) |
| C7—C8—C9 | 120.36 (18) | C18—C17—C16 | 120.7 (3) |
| C7—C8—H8 | 119.8 | C17—C18—C19 | 119.4 (3) |
| C9—C8—H8 | 119.8 | C17—C18—H18 | 120.3 |
| C8—C9—C4 | 118.84 (17) | C19—C18—H18 | 120.3 |
| C8—C9—C10 | 123.12 (16) | F3—C19—C18 | 118.4 (3) |
| C4—C9—C10 | 118.04 (16) | F3—C19—C14 | 119.9 (2) |
| C1—C10—O1 | 124.10 (16) | C18—C19—C14 | 121.7 (3) |
| C1—C10—C9 | 121.46 (16) | C12—N1—N2 | 105.99 (15) |
| O1—C10—C9 | 114.45 (15) | C13—N2—N1 | 106.01 (15) |
| O1—C11—C12 | 106.06 (14) | C10—O1—C11 | 117.48 (14) |
| O1—C11—H11A | 110.5 | C12—O2—C13 | 102.37 (13) |
| C10—C1—C2—C3 | 0.2 (3) | C13—C14—C15—C16 | −179.59 (18) |
| C1—C2—C3—C4 | 1.4 (3) | C14—C15—C16—F1 | 179.8 (2) |
| C2—C3—C4—C5 | 179.02 (19) | C14—C15—C16—C17 | −0.3 (4) |
| C2—C3—C4—C9 | −1.2 (3) | F1—C16—C17—F2 | −0.6 (4) |
| C3—C4—C5—C6 | −179.3 (2) | C15—C16—C17—F2 | 179.5 (2) |
| C9—C4—C5—C6 | 0.9 (3) | F1—C16—C17—C18 | 179.6 (2) |
| C4—C5—C6—C7 | −0.2 (3) | C15—C16—C17—C18 | −0.3 (4) |
| C5—C6—C7—C8 | −0.3 (3) | F2—C17—C18—C19 | −179.3 (2) |
| C6—C7—C8—C9 | −0.1 (3) | C16—C17—C18—C19 | 0.6 (4) |
| C7—C8—C9—C4 | 0.9 (3) | C17—C18—C19—F3 | −179.6 (2) |
| C7—C8—C9—C10 | −179.79 (17) | C17—C18—C19—C14 | −0.2 (4) |
| C5—C4—C9—C8 | −1.3 (3) | C15—C14—C19—F3 | 179.00 (19) |
| C3—C4—C9—C8 | 178.98 (17) | C13—C14—C19—F3 | −0.7 (3) |
| C5—C4—C9—C10 | 179.36 (16) | C15—C14—C19—C18 | −0.4 (3) |
| C3—C4—C9—C10 | −0.4 (2) | C13—C14—C19—C18 | 179.84 (19) |
| C2—C1—C10—O1 | 178.07 (17) | O2—C12—N1—N2 | −0.3 (2) |
| C2—C1—C10—C9 | −1.9 (3) | C11—C12—N1—N2 | 178.92 (17) |
| C8—C9—C10—C1 | −177.39 (17) | O2—C13—N2—N1 | −0.1 (2) |
| C4—C9—C10—C1 | 2.0 (2) | C14—C13—N2—N1 | 179.94 (17) |
| C8—C9—C10—O1 | 2.7 (2) | C12—N1—N2—C13 | 0.2 (2) |
| C4—C9—C10—O1 | −177.99 (14) | C1—C10—O1—C11 | −6.4 (3) |
| O1—C11—C12—N1 | 9.7 (3) | C9—C10—O1—C11 | 173.59 (14) |
| O1—C11—C12—O2 | −171.20 (14) | C12—C11—O1—C10 | −169.31 (14) |
| N2—C13—C14—C15 | 172.59 (19) | N1—C12—O2—C13 | 0.18 (19) |
| O2—C13—C14—C15 | −7.3 (3) | C11—C12—O2—C13 | −179.10 (14) |
| N2—C13—C14—C19 | −7.7 (3) | N2—C13—O2—C12 | −0.01 (19) |
| O2—C13—C14—C19 | 172.39 (16) | C14—C13—O2—C12 | 179.92 (14) |
| C19—C14—C15—C16 | 0.7 (3) |
| H··· | ||||
| C1—H1···N2i | 0.93 | 2.61 | 3.449 (3) | 151 |
| C5—H5···F2ii | 0.93 | 2.51 | 3.290 (3) | 141 |
Hydrogen-bond geometry (, )
|
|
| H |
|
|
|---|---|---|---|---|
| C1H1N2i | 0.93 | 2.61 | 3.449(3) | 151 |
| C5H5F2ii | 0.93 | 2.51 | 3.290(3) | 141 |
Symmetry codes: (i) ; (ii) .