| Literature DB >> 26396796 |
Sammer Yousuf1, Huma Bano1, Munira Taj Muhammad1, Khalid Mohammed Khan1.
Abstract
In the title benzyl-idenemalono-nitrile derivative, C17H12N2O, the dihedral angles between the central benzene ring and the Y-shaped C=C(CN)2 group (r.m.s. deviation = 0.006 Å) and the terminal benzene ring are 12.72 (8) and 37.60 (11)°, respectively. The Car-O-Csp (3)-Car torsion angle is -174.52 (13)° and the major twist between the aromatic rings occurs about the Csp (3)-Car bond. Weak aromatic π-π stacking [centroid-centroid separation = 3.7784 (13) Å; slippage = 1.21 Å] between inversion-related pairs of the central benzene rings is observed in the crystal.Entities:
Keywords: benzylidenemalononitrile derivatives; crystal structure; malononitrile
Year: 2015 PMID: 26396796 PMCID: PMC4571396 DOI: 10.1107/S2056989015012608
Source DB: PubMed Journal: Acta Crystallogr E Crystallogr Commun
| C17H12N2O | |
| Triclinic, | |
| Mo | |
| Cell parameters from 1299 reflections | |
| θ = 2.3–20.8° | |
| α = 97.709 (3)° | µ = 0.08 mm−1 |
| β = 107.953 (3)° | |
| γ = 105.155 (3)° | Plate, colourless |
| 0.34 × 0.11 × 0.07 mm |
| Bruker SMART APEX CCD diffractometer | 2545 independent reflections |
| Radiation source: fine-focus sealed tube | 1722 reflections with |
| Graphite monochromator | |
| ω scan | θmax = 25.5°, θmin = 2.0° |
| Absorption correction: multi-scan ( | |
| 7776 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 | |
| 2545 reflections | (Δ/σ)max < 0.001 |
| 181 parameters | Δρmax = 0.11 e Å−3 |
| 0 restraints | Δρmin = −0.17 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 | 0.37248 (18) | 0.70351 (12) | 0.15139 (10) | 0.0558 (3) | |
| N1 | −0.0533 (3) | 0.06530 (19) | 0.15041 (17) | 0.0861 (6) | |
| N2 | 0.2682 (3) | 0.38995 (18) | 0.52272 (16) | 0.0799 (6) | |
| C1 | 0.6578 (3) | 0.9358 (2) | 0.36642 (19) | 0.0682 (6) | |
| H1A | 0.6704 | 0.8409 | 0.3666 | 0.082* | |
| C2 | 0.7541 (3) | 1.0476 (3) | 0.4799 (2) | 0.0840 (7) | |
| H2A | 0.8300 | 1.0276 | 0.5565 | 0.101* | |
| C3 | 0.7382 (4) | 1.1883 (3) | 0.4800 (2) | 0.0864 (7) | |
| H3A | 0.8036 | 1.2639 | 0.5565 | 0.104* | |
| C4 | 0.6260 (3) | 1.2171 (2) | 0.3675 (2) | 0.0816 (7) | |
| H4A | 0.6163 | 1.3127 | 0.3670 | 0.098* | |
| C5 | 0.5273 (3) | 1.1043 (2) | 0.2549 (2) | 0.0653 (5) | |
| H5A | 0.4487 | 1.1241 | 0.1792 | 0.078* | |
| C6 | 0.5432 (3) | 0.96316 (18) | 0.25284 (17) | 0.0501 (4) | |
| C7 | 0.4489 (3) | 0.84695 (18) | 0.12655 (17) | 0.0573 (5) | |
| H7A | 0.3388 | 0.8708 | 0.0666 | 0.069* | |
| H7B | 0.5495 | 0.8453 | 0.0863 | 0.069* | |
| C8 | 0.2956 (2) | 0.57991 (18) | 0.05089 (15) | 0.0459 (4) | |
| C9 | 0.2793 (3) | 0.5848 (2) | −0.07670 (16) | 0.0545 (5) | |
| H9A | 0.3218 | 0.6764 | −0.0978 | 0.065* | |
| C10 | 0.2002 (3) | 0.4537 (2) | −0.17214 (17) | 0.0607 (5) | |
| H10A | 0.1902 | 0.4575 | −0.2577 | 0.073* | |
| C11 | 0.1356 (3) | 0.3172 (2) | −0.14330 (17) | 0.0609 (5) | |
| H11A | 0.0824 | 0.2293 | −0.2088 | 0.073* | |
| C12 | 0.1501 (3) | 0.31157 (19) | −0.01748 (16) | 0.0539 (5) | |
| H12A | 0.1061 | 0.2189 | 0.0016 | 0.065* | |
| C13 | 0.2296 (2) | 0.44161 (17) | 0.08304 (15) | 0.0440 (4) | |
| C14 | 0.2524 (2) | 0.44280 (18) | 0.21768 (15) | 0.0478 (4) | |
| H14A | 0.3315 | 0.5343 | 0.2765 | 0.057* | |
| C15 | 0.1784 (2) | 0.33340 (18) | 0.27265 (15) | 0.0473 (4) | |
| C16 | 0.0496 (3) | 0.1845 (2) | 0.20382 (17) | 0.0568 (5) | |
| C17 | 0.2273 (3) | 0.36414 (19) | 0.41193 (19) | 0.0569 (5) |
| O1 | 0.0745 (8) | 0.0390 (7) | 0.0461 (7) | 0.0046 (6) | 0.0232 (6) | 0.0091 (5) |
| N1 | 0.1044 (15) | 0.0552 (11) | 0.0784 (12) | −0.0080 (10) | 0.0388 (11) | 0.0033 (9) |
| N2 | 0.1137 (15) | 0.0664 (11) | 0.0508 (11) | 0.0125 (10) | 0.0309 (10) | 0.0144 (9) |
| C1 | 0.0809 (14) | 0.0509 (12) | 0.0639 (13) | 0.0202 (10) | 0.0152 (11) | 0.0126 (10) |
| C2 | 0.0897 (17) | 0.0751 (16) | 0.0632 (14) | 0.0207 (13) | 0.0055 (12) | 0.0023 (12) |
| C3 | 0.0827 (16) | 0.0622 (15) | 0.0862 (17) | 0.0083 (12) | 0.0189 (13) | −0.0159 (12) |
| C4 | 0.0847 (16) | 0.0464 (12) | 0.1071 (19) | 0.0192 (11) | 0.0332 (14) | 0.0030 (13) |
| C5 | 0.0673 (13) | 0.0491 (12) | 0.0790 (14) | 0.0183 (10) | 0.0248 (11) | 0.0177 (10) |
| C6 | 0.0521 (10) | 0.0404 (10) | 0.0562 (11) | 0.0086 (8) | 0.0221 (9) | 0.0121 (8) |
| C7 | 0.0675 (12) | 0.0448 (10) | 0.0564 (11) | 0.0114 (9) | 0.0205 (9) | 0.0190 (9) |
| C8 | 0.0448 (10) | 0.0475 (10) | 0.0404 (9) | 0.0099 (8) | 0.0146 (8) | 0.0060 (8) |
| C9 | 0.0587 (11) | 0.0578 (11) | 0.0459 (10) | 0.0130 (9) | 0.0207 (9) | 0.0156 (9) |
| C10 | 0.0634 (12) | 0.0778 (14) | 0.0382 (10) | 0.0178 (10) | 0.0198 (9) | 0.0113 (10) |
| C11 | 0.0663 (12) | 0.0603 (12) | 0.0443 (11) | 0.0099 (10) | 0.0189 (9) | −0.0025 (9) |
| C12 | 0.0577 (11) | 0.0464 (10) | 0.0484 (11) | 0.0070 (9) | 0.0179 (9) | 0.0039 (8) |
| C13 | 0.0444 (9) | 0.0430 (9) | 0.0389 (9) | 0.0090 (7) | 0.0128 (7) | 0.0066 (7) |
| C14 | 0.0526 (10) | 0.0394 (9) | 0.0424 (10) | 0.0084 (8) | 0.0124 (8) | 0.0044 (7) |
| C15 | 0.0540 (10) | 0.0416 (10) | 0.0410 (9) | 0.0092 (8) | 0.0163 (8) | 0.0068 (8) |
| C16 | 0.0674 (12) | 0.0461 (11) | 0.0522 (11) | 0.0064 (10) | 0.0250 (9) | 0.0108 (9) |
| C17 | 0.0716 (13) | 0.0442 (11) | 0.0508 (12) | 0.0083 (9) | 0.0242 (10) | 0.0123 (9) |
| O1—C8 | 1.3580 (18) | C7—H7B | 0.9700 |
| O1—C7 | 1.4277 (18) | C8—C9 | 1.383 (2) |
| N1—C16 | 1.138 (2) | C8—C13 | 1.408 (2) |
| N2—C17 | 1.140 (2) | C9—C10 | 1.374 (2) |
| C1—C6 | 1.375 (2) | C9—H9A | 0.9300 |
| C1—C2 | 1.378 (3) | C10—C11 | 1.374 (2) |
| C1—H1A | 0.9300 | C10—H10A | 0.9300 |
| C2—C3 | 1.371 (3) | C11—C12 | 1.368 (2) |
| C2—H2A | 0.9300 | C11—H11A | 0.9300 |
| C3—C4 | 1.366 (3) | C12—C13 | 1.397 (2) |
| C3—H3A | 0.9300 | C12—H12A | 0.9300 |
| C4—C5 | 1.377 (3) | C13—C14 | 1.440 (2) |
| C4—H4A | 0.9300 | C14—C15 | 1.348 (2) |
| C5—C6 | 1.373 (2) | C14—H14A | 0.9300 |
| C5—H5A | 0.9300 | C15—C16 | 1.427 (2) |
| C6—C7 | 1.494 (2) | C15—C17 | 1.435 (2) |
| C7—H7A | 0.9700 | ||
| C8—O1—C7 | 118.82 (13) | O1—C8—C13 | 115.91 (14) |
| C6—C1—C2 | 120.69 (18) | C9—C8—C13 | 120.32 (15) |
| C6—C1—H1A | 119.7 | C10—C9—C8 | 119.76 (17) |
| C2—C1—H1A | 119.7 | C10—C9—H9A | 120.1 |
| C3—C2—C1 | 120.0 (2) | C8—C9—H9A | 120.1 |
| C3—C2—H2A | 120.0 | C9—C10—C11 | 121.12 (16) |
| C1—C2—H2A | 120.0 | C9—C10—H10A | 119.4 |
| C4—C3—C2 | 119.8 (2) | C11—C10—H10A | 119.4 |
| C4—C3—H3A | 120.1 | C12—C11—C10 | 119.45 (16) |
| C2—C3—H3A | 120.1 | C12—C11—H11A | 120.3 |
| C3—C4—C5 | 119.9 (2) | C10—C11—H11A | 120.3 |
| C3—C4—H4A | 120.0 | C11—C12—C13 | 121.61 (16) |
| C5—C4—H4A | 120.0 | C11—C12—H12A | 119.2 |
| C6—C5—C4 | 121.0 (2) | C13—C12—H12A | 119.2 |
| C6—C5—H5A | 119.5 | C12—C13—C8 | 117.74 (15) |
| C4—C5—H5A | 119.5 | C12—C13—C14 | 124.20 (15) |
| C5—C6—C1 | 118.55 (17) | C8—C13—C14 | 118.05 (14) |
| C5—C6—C7 | 119.67 (17) | C15—C14—C13 | 130.76 (15) |
| C1—C6—C7 | 121.64 (16) | C15—C14—H14A | 114.6 |
| O1—C7—C6 | 109.28 (14) | C13—C14—H14A | 114.6 |
| O1—C7—H7A | 109.8 | C14—C15—C16 | 125.63 (15) |
| C6—C7—H7A | 109.8 | C14—C15—C17 | 119.51 (15) |
| O1—C7—H7B | 109.8 | C16—C15—C17 | 114.86 (14) |
| C6—C7—H7B | 109.8 | N1—C16—C15 | 179.11 (19) |
| H7A—C7—H7B | 108.3 | N2—C17—C15 | 179.2 (2) |
| O1—C8—C9 | 123.76 (15) | ||
| C6—C1—C2—C3 | −0.7 (3) | C9—C10—C11—C12 | 0.1 (3) |
| C1—C2—C3—C4 | 0.2 (4) | C10—C11—C12—C13 | −0.1 (3) |
| C2—C3—C4—C5 | 0.8 (4) | C11—C12—C13—C8 | −0.3 (2) |
| C3—C4—C5—C6 | −1.4 (3) | C11—C12—C13—C14 | −178.75 (16) |
| C4—C5—C6—C1 | 0.9 (3) | O1—C8—C13—C12 | −179.77 (14) |
| C4—C5—C6—C7 | −174.84 (18) | C9—C8—C13—C12 | 0.6 (2) |
| C2—C1—C6—C5 | 0.2 (3) | O1—C8—C13—C14 | −1.2 (2) |
| C2—C1—C6—C7 | 175.84 (19) | C9—C8—C13—C14 | 179.23 (15) |
| C8—O1—C7—C6 | −174.52 (13) | C12—C13—C14—C15 | −12.2 (3) |
| C5—C6—C7—O1 | −144.67 (16) | C8—C13—C14—C15 | 169.29 (17) |
| C1—C6—C7—O1 | 39.7 (2) | C13—C14—C15—C16 | −1.5 (3) |
| C7—O1—C8—C9 | −2.6 (2) | C13—C14—C15—C17 | 179.08 (17) |
| C7—O1—C8—C13 | 177.82 (14) | C14—C15—C16—N1 | −176 (100) |
| O1—C8—C9—C10 | 179.76 (15) | C17—C15—C16—N1 | 3 (14) |
| C13—C8—C9—C10 | −0.7 (2) | C14—C15—C17—N2 | −22 (16) |
| C8—C9—C10—C11 | 0.3 (3) | C16—C15—C17—N2 | 159 (16) |