| Literature DB >> 22219959 |
T Srinivasan, S Suhitha, M Gnana Ruba Priya, K Girija, N Ravi Chandran, D Velmurugan.
Abstract
In the title compound, C(14)H(9)BrN(2)O, the quinazoline unit is essentially planar, with a mean deviation of 0.058 (2) Å from the least-squares plane defined by the ten constituent ring atoms. The dihedral angle between the mean plane of the quinazoline ring system and the 4-bromo-phenyl ring is 47.6 (1)°. In the crystal, mol-ecules are linked by inter-molecular C-H⋯N and C-H⋯O hydrogen bonds, forming infinite chains of alternating R(2) (2)(6) dimers and R(2) (2)(14) ring motifs.Entities:
Year: 2011 PMID: 22219959 PMCID: PMC3247341 DOI: 10.1107/S1600536811040736
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C14H9BrN2O | |
| Monoclinic, | Mo |
| Hall symbol: -P 2yn | Cell parameters from 2840 reflections |
| θ = 1.6–28.3° | |
| µ = 3.46 mm−1 | |
| β = 93.168 (11)° | Block, colourless |
| 0.20 × 0.20 × 0.20 mm | |
| Bruker SMART APEXII area-detector diffractometer | 1772 reflections with |
| Radiation source: fine-focus sealed tube | |
| graphite | θmax = 28.3°, θmin = 1.6° |
| ω and φ scans | |
| 10371 measured reflections | |
| 2840 independent 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 | |
| 2840 reflections | (Δ/σ)max = 0.001 |
| 163 parameters | Δρmax = 0.34 e Å−3 |
| 0 restraints | Δρmin = −0.54 e Å−3 |
| 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 | 0.30495 (19) | −0.4078 (7) | −0.13542 (16) | 0.0457 (8) | |
| H1 | 0.3413 | −0.5172 | −0.1644 | 0.055* | |
| C2 | 0.22902 (19) | −0.3495 (8) | −0.16454 (17) | 0.0494 (8) | |
| H2 | 0.2143 | −0.4201 | −0.2134 | 0.059* | |
| C3 | 0.17450 (19) | −0.1869 (8) | −0.12177 (18) | 0.0500 (8) | |
| H3 | 0.1233 | −0.1520 | −0.1418 | 0.060* | |
| C4 | 0.19570 (17) | −0.0771 (8) | −0.04997 (17) | 0.0445 (7) | |
| H4 | 0.1591 | 0.0340 | −0.0216 | 0.053* | |
| C5 | 0.27242 (16) | −0.1327 (7) | −0.01962 (15) | 0.0354 (7) | |
| C6 | 0.32663 (17) | −0.3015 (7) | −0.06239 (15) | 0.0360 (6) | |
| N2 | 0.37065 (13) | −0.1237 (5) | 0.08283 (12) | 0.0338 (5) | |
| C9 | 0.39734 (16) | −0.0577 (7) | 0.15992 (14) | 0.0340 (6) | |
| C10 | 0.35023 (17) | −0.1470 (7) | 0.21832 (16) | 0.0424 (7) | |
| H10 | 0.3018 | −0.2522 | 0.2077 | 0.051* | |
| C11 | 0.37520 (18) | −0.0797 (7) | 0.29172 (16) | 0.0430 (7) | |
| H11 | 0.3434 | −0.1357 | 0.3310 | 0.052* | |
| C12 | 0.44731 (17) | 0.0707 (7) | 0.30707 (15) | 0.0383 (7) | |
| C13 | 0.49575 (17) | 0.1529 (7) | 0.24960 (16) | 0.0440 (7) | |
| H13 | 0.5449 | 0.2506 | 0.2607 | 0.053* | |
| C14 | 0.47056 (16) | 0.0889 (7) | 0.17584 (16) | 0.0397 (7) | |
| H14 | 0.5026 | 0.1440 | 0.1367 | 0.048* | |
| C7 | 0.29483 (16) | −0.0184 (8) | 0.05649 (15) | 0.0392 (7) | |
| C8 | 0.41999 (17) | −0.2860 (7) | 0.03558 (16) | 0.0380 (7) | |
| H8 | 0.4704 | −0.3381 | 0.0556 | 0.046* | |
| O1 | 0.25479 (13) | 0.1572 (6) | 0.09574 (12) | 0.0599 (6) | |
| N1 | 0.40348 (14) | −0.3727 (6) | −0.03334 (13) | 0.0411 (6) | |
| Br1 | 0.47919 (2) | 0.17499 (9) | 0.408526 (17) | 0.05840 (16) |
| C1 | 0.056 (2) | 0.0462 (19) | 0.0358 (15) | 0.0011 (15) | 0.0107 (14) | −0.0001 (13) |
| C2 | 0.057 (2) | 0.053 (2) | 0.0376 (15) | −0.0083 (17) | −0.0049 (15) | 0.0042 (14) |
| C3 | 0.0436 (18) | 0.056 (2) | 0.0494 (18) | −0.0026 (16) | −0.0041 (15) | 0.0095 (16) |
| C4 | 0.0351 (17) | 0.0494 (19) | 0.0493 (17) | 0.0077 (14) | 0.0058 (14) | 0.0051 (14) |
| C5 | 0.0356 (16) | 0.0347 (17) | 0.0368 (14) | 0.0037 (13) | 0.0094 (12) | 0.0068 (12) |
| C6 | 0.0361 (16) | 0.0359 (15) | 0.0367 (14) | 0.0006 (13) | 0.0081 (12) | 0.0063 (12) |
| N2 | 0.0301 (12) | 0.0408 (14) | 0.0314 (11) | 0.0064 (11) | 0.0090 (9) | 0.0002 (10) |
| C9 | 0.0335 (16) | 0.0367 (16) | 0.0325 (13) | 0.0026 (13) | 0.0077 (12) | 0.0035 (12) |
| C10 | 0.0390 (17) | 0.0477 (19) | 0.0416 (15) | −0.0047 (14) | 0.0122 (13) | 0.0043 (14) |
| C11 | 0.0467 (18) | 0.0506 (19) | 0.0331 (14) | −0.0002 (15) | 0.0153 (13) | 0.0068 (13) |
| C12 | 0.0453 (18) | 0.0410 (16) | 0.0291 (13) | 0.0023 (14) | 0.0050 (12) | 0.0026 (12) |
| C13 | 0.0379 (16) | 0.0505 (19) | 0.0434 (16) | −0.0070 (15) | 0.0018 (13) | 0.0042 (14) |
| C14 | 0.0341 (16) | 0.0474 (19) | 0.0389 (15) | −0.0011 (14) | 0.0131 (12) | 0.0086 (13) |
| C7 | 0.0316 (16) | 0.0478 (18) | 0.0390 (15) | 0.0039 (15) | 0.0083 (12) | 0.0052 (14) |
| C8 | 0.0304 (15) | 0.0447 (17) | 0.0397 (15) | 0.0077 (13) | 0.0096 (12) | 0.0039 (13) |
| O1 | 0.0482 (13) | 0.0870 (17) | 0.0452 (12) | 0.0302 (12) | 0.0080 (10) | −0.0133 (12) |
| N1 | 0.0372 (14) | 0.0494 (16) | 0.0377 (13) | 0.0062 (12) | 0.0117 (11) | −0.0007 (11) |
| Br1 | 0.0734 (3) | 0.0652 (3) | 0.03636 (18) | −0.00188 (19) | 0.00039 (15) | −0.00357 (15) |
| C1—C2 | 1.380 (4) | C9—C14 | 1.385 (4) |
| C1—C6 | 1.389 (4) | C9—C10 | 1.387 (4) |
| C1—H1 | 0.9300 | C10—C11 | 1.370 (4) |
| C2—C3 | 1.385 (4) | C10—H10 | 0.9300 |
| C2—H2 | 0.9300 | C11—C12 | 1.373 (4) |
| C3—C4 | 1.372 (4) | C11—H11 | 0.9300 |
| C3—H3 | 0.9300 | C12—C13 | 1.381 (4) |
| C4—C5 | 1.398 (4) | C12—Br1 | 1.892 (3) |
| C4—H4 | 0.9300 | C13—C14 | 1.374 (4) |
| C5—C6 | 1.393 (4) | C13—H13 | 0.9300 |
| C5—C7 | 1.451 (4) | C14—H14 | 0.9300 |
| C6—N1 | 1.403 (4) | C7—O1 | 1.216 (3) |
| N2—C8 | 1.374 (3) | C8—N1 | 1.283 (4) |
| N2—C7 | 1.406 (3) | C8—H8 | 0.9300 |
| N2—C9 | 1.437 (3) | ||
| C2—C1—C6 | 119.4 (3) | C10—C9—N2 | 119.8 (2) |
| C2—C1—H1 | 120.3 | C11—C10—C9 | 119.8 (3) |
| C6—C1—H1 | 120.3 | C11—C10—H10 | 120.1 |
| C1—C2—C3 | 120.7 (3) | C9—C10—H10 | 120.1 |
| C1—C2—H2 | 119.6 | C10—C11—C12 | 119.8 (3) |
| C3—C2—H2 | 119.6 | C10—C11—H11 | 120.1 |
| C4—C3—C2 | 120.3 (3) | C12—C11—H11 | 120.1 |
| C4—C3—H3 | 119.9 | C11—C12—C13 | 121.0 (3) |
| C2—C3—H3 | 119.9 | C11—C12—Br1 | 119.1 (2) |
| C3—C4—C5 | 119.8 (3) | C13—C12—Br1 | 119.8 (2) |
| C3—C4—H4 | 120.1 | C14—C13—C12 | 119.3 (3) |
| C5—C4—H4 | 120.1 | C14—C13—H13 | 120.3 |
| C6—C5—C4 | 119.7 (3) | C12—C13—H13 | 120.3 |
| C6—C5—C7 | 120.4 (2) | C13—C14—C9 | 119.9 (2) |
| C4—C5—C7 | 119.9 (2) | C13—C14—H14 | 120.1 |
| C1—C6—C5 | 120.1 (3) | C9—C14—H14 | 120.1 |
| C1—C6—N1 | 118.2 (3) | O1—C7—N2 | 120.6 (3) |
| C5—C6—N1 | 121.6 (2) | O1—C7—C5 | 125.6 (3) |
| C8—N2—C7 | 120.9 (2) | N2—C7—C5 | 113.8 (2) |
| C8—N2—C9 | 119.5 (2) | N1—C8—N2 | 126.5 (3) |
| C7—N2—C9 | 119.7 (2) | N1—C8—H8 | 116.7 |
| C14—C9—C10 | 120.1 (3) | N2—C8—H8 | 116.7 |
| C14—C9—N2 | 120.1 (2) | C8—N1—C6 | 116.4 (2) |
| C6—C1—C2—C3 | 0.0 (4) | C10—C11—C12—Br1 | 177.9 (2) |
| C1—C2—C3—C4 | 0.9 (5) | C11—C12—C13—C14 | 1.3 (5) |
| C2—C3—C4—C5 | −0.6 (5) | Br1—C12—C13—C14 | −177.3 (2) |
| C3—C4—C5—C6 | −0.5 (4) | C12—C13—C14—C9 | −0.2 (4) |
| C3—C4—C5—C7 | −179.7 (3) | C10—C9—C14—C13 | −1.5 (4) |
| C2—C1—C6—C5 | −1.1 (4) | N2—C9—C14—C13 | 179.7 (3) |
| C2—C1—C6—N1 | 178.2 (2) | C8—N2—C7—O1 | −171.8 (3) |
| C4—C5—C6—C1 | 1.3 (4) | C9—N2—C7—O1 | 7.5 (4) |
| C7—C5—C6—C1 | −179.5 (3) | C8—N2—C7—C5 | 6.9 (4) |
| C4—C5—C6—N1 | −177.9 (2) | C9—N2—C7—C5 | −173.8 (2) |
| C7—C5—C6—N1 | 1.3 (4) | C6—C5—C7—O1 | 172.8 (3) |
| C8—N2—C9—C14 | 48.8 (4) | C4—C5—C7—O1 | −8.0 (4) |
| C7—N2—C9—C14 | −130.5 (3) | C6—C5—C7—N2 | −5.9 (4) |
| C8—N2—C9—C10 | −130.0 (3) | C4—C5—C7—N2 | 173.3 (2) |
| C7—N2—C9—C10 | 50.7 (4) | C7—N2—C8—N1 | −3.4 (4) |
| C14—C9—C10—C11 | 2.1 (4) | C9—N2—C8—N1 | 177.3 (3) |
| N2—C9—C10—C11 | −179.1 (3) | N2—C8—N1—C6 | −1.7 (4) |
| C9—C10—C11—C12 | −1.1 (5) | C1—C6—N1—C8 | −176.6 (3) |
| C10—C11—C12—C13 | −0.6 (5) | C5—C6—N1—C8 | 2.7 (4) |
| H··· | ||||
| C8—H8···N1i | 0.93 | 2.48 | 3.286 (4) | 146. |
| C11—H11···O1ii | 0.93 | 2.32 | 3.224 (4) | 165. |
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| C8—H8⋯N1i | 0.93 | 2.48 | 3.286 (4) | 146 |
| C11—H11⋯O1ii | 0.93 | 2.32 | 3.224 (4) | 165 |
Symmetry codes: (i) ; (ii) .