| Literature DB >> 25995930 |
H C Devarajegowda1, P A Suchetan2, H T Srinivasa3, S Sreenivasa4, B S Palakshamurthy1.
Abstract
In the title compound, C16H9BrO4, the coumarin ring system is approximately planar, with an r.m.s deviation of the ten fitted non-H atoms of 0.031 Å, and forms a dihedral angle of 25.85 (10)° with the bromo-benzene ring. The carbonyl atoms are syn. In the crystal, mol-ecules are connected along [001] via C-H⋯O inter-actions, forming C(6) chains. Neighbouring C(6) chains are connected via several π-π inter-actions [range of centroid-centroid distances = 3.7254 (15)-3.7716 (16) Å], leading to sheets propagating in the bc plane.Entities:
Keywords: 2-oxo-2H-chromene; crystal structure; hydrogen bonding; π–π interactions
Year: 2015 PMID: 25995930 PMCID: PMC4420041 DOI: 10.1107/S2056989015006738
Source DB: PubMed Journal: Acta Crystallogr E Crystallogr Commun
| C16H9BrO4 | Prism |
| Monoclinic, | Melting point: 523 K |
| Hall symbol: -P 2ybc | Mo |
| Cell parameters from 2395 reflections | |
| θ = 2.8–25.0° | |
| µ = 3.02 mm−1 | |
| β = 113.311 (4)° | |
| Prism, colourless | |
| 0.24 × 0.18 × 0.16 mm | |
| Bruker APEXII CCD diffractometer | 2395 independent reflections |
| Radiation source: fine-focus sealed tube | 1831 reflections with |
| Graphite monochromator | |
| Detector resolution: 2.01 pixels mm-1 | θmax = 25.0°, θmin = 2.8° |
| φ and ω scans | |
| Absorption correction: multi-scan ( | |
| 20483 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 | |
| 2395 reflections | Δρmax = 0.45 e Å−3 |
| 191 parameters | Δρmin = −0.54 e Å−3 |
| 0 restraints | Extinction correction: |
| 0 constraints | Extinction coefficient: 0.0062 (6) |
| Primary atom site location: structure-invariant direct methods |
| 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. |
| Br1 | 0.94359 (2) | 0.14526 (6) | 0.64830 (3) | 0.0907 (2) | |
| O1 | 0.31144 (12) | 0.1686 (2) | −0.06316 (14) | 0.0517 (5) | |
| O2 | 0.44603 (13) | 0.1964 (3) | −0.06745 (15) | 0.0612 (5) | |
| O3 | 0.58965 (12) | 0.2657 (3) | 0.15291 (14) | 0.0556 (5) | |
| O4 | 0.56890 (11) | 0.0734 (2) | 0.27929 (13) | 0.0428 (4) | |
| C1 | 0.25543 (17) | 0.1424 (3) | −0.0061 (2) | 0.0460 (6) | |
| C2 | 0.1631 (2) | 0.1504 (4) | −0.0694 (3) | 0.0613 (8) | |
| H2 | 0.1403 | 0.1720 | −0.1477 | 0.074* | |
| C3 | 0.1059 (2) | 0.1257 (4) | −0.0142 (3) | 0.0709 (9) | |
| H3 | 0.0436 | 0.1322 | −0.0558 | 0.085* | |
| C4 | 0.1389 (2) | 0.0915 (4) | 0.1017 (3) | 0.0673 (9) | |
| H4 | 0.0990 | 0.0734 | 0.1372 | 0.081* | |
| C5 | 0.23074 (18) | 0.0840 (4) | 0.1648 (3) | 0.0547 (7) | |
| H5 | 0.2530 | 0.0613 | 0.2429 | 0.066* | |
| C6 | 0.29078 (17) | 0.1108 (3) | 0.1108 (2) | 0.0413 (6) | |
| C7 | 0.38706 (16) | 0.1145 (3) | 0.1709 (2) | 0.0394 (6) | |
| H7 | 0.4122 | 0.0939 | 0.2493 | 0.047* | |
| C8 | 0.44200 (16) | 0.1472 (3) | 0.11609 (19) | 0.0364 (6) | |
| C9 | 0.40485 (18) | 0.1736 (3) | −0.0079 (2) | 0.0440 (6) | |
| C10 | 0.54071 (17) | 0.1702 (3) | 0.18007 (19) | 0.0385 (6) | |
| C11 | 0.65769 (16) | 0.0988 (3) | 0.36007 (19) | 0.0370 (5) | |
| C12 | 0.66608 (17) | 0.1487 (3) | 0.4677 (2) | 0.0433 (6) | |
| H12 | 0.6149 | 0.1711 | 0.4827 | 0.052* | |
| C13 | 0.75178 (19) | 0.1654 (4) | 0.5536 (2) | 0.0517 (7) | |
| H13 | 0.7590 | 0.2000 | 0.6270 | 0.062* | |
| C14 | 0.82608 (18) | 0.1301 (4) | 0.5288 (2) | 0.0499 (7) | |
| C15 | 0.81735 (18) | 0.0805 (4) | 0.4214 (2) | 0.0538 (7) | |
| H15 | 0.8686 | 0.0581 | 0.4065 | 0.065* | |
| C16 | 0.73210 (17) | 0.0637 (4) | 0.3352 (2) | 0.0452 (6) | |
| H16 | 0.7251 | 0.0293 | 0.2619 | 0.054* |
| Br1 | 0.0491 (2) | 0.1081 (3) | 0.0795 (3) | −0.01632 (19) | −0.01221 (17) | 0.0173 (2) |
| O1 | 0.0460 (11) | 0.0681 (12) | 0.0343 (9) | 0.0056 (9) | 0.0087 (8) | −0.0015 (8) |
| O2 | 0.0622 (13) | 0.0888 (15) | 0.0368 (10) | 0.0067 (11) | 0.0240 (10) | 0.0059 (10) |
| O3 | 0.0497 (11) | 0.0724 (13) | 0.0443 (10) | −0.0097 (10) | 0.0181 (9) | 0.0127 (9) |
| O4 | 0.0364 (9) | 0.0547 (10) | 0.0336 (9) | −0.0038 (8) | 0.0100 (7) | 0.0081 (8) |
| C1 | 0.0401 (15) | 0.0421 (15) | 0.0489 (15) | 0.0008 (11) | 0.0102 (13) | −0.0059 (12) |
| C2 | 0.0473 (18) | 0.0615 (19) | 0.0576 (18) | 0.0004 (14) | 0.0020 (15) | −0.0034 (14) |
| C3 | 0.0383 (17) | 0.064 (2) | 0.096 (3) | −0.0063 (14) | 0.0115 (18) | −0.0058 (18) |
| C4 | 0.0465 (18) | 0.064 (2) | 0.094 (3) | −0.0078 (15) | 0.0305 (18) | −0.0008 (18) |
| C5 | 0.0470 (17) | 0.0564 (17) | 0.0636 (17) | −0.0055 (14) | 0.0250 (15) | 0.0011 (14) |
| C6 | 0.0403 (14) | 0.0363 (14) | 0.0455 (14) | 0.0000 (11) | 0.0150 (12) | −0.0028 (11) |
| C7 | 0.0421 (14) | 0.0375 (13) | 0.0367 (13) | 0.0018 (11) | 0.0135 (11) | −0.0006 (10) |
| C8 | 0.0421 (14) | 0.0352 (13) | 0.0316 (12) | 0.0027 (10) | 0.0144 (11) | −0.0010 (10) |
| C9 | 0.0464 (15) | 0.0485 (15) | 0.0335 (13) | 0.0059 (12) | 0.0121 (12) | −0.0013 (11) |
| C10 | 0.0433 (14) | 0.0409 (14) | 0.0336 (13) | 0.0007 (11) | 0.0178 (11) | −0.0006 (10) |
| C11 | 0.0333 (13) | 0.0405 (13) | 0.0354 (12) | −0.0006 (11) | 0.0117 (10) | 0.0040 (10) |
| C12 | 0.0401 (15) | 0.0506 (15) | 0.0407 (14) | 0.0037 (12) | 0.0177 (12) | 0.0031 (11) |
| C13 | 0.0576 (18) | 0.0535 (16) | 0.0374 (14) | −0.0025 (13) | 0.0120 (13) | 0.0006 (12) |
| C14 | 0.0381 (15) | 0.0502 (16) | 0.0487 (16) | −0.0054 (12) | 0.0036 (12) | 0.0084 (12) |
| C15 | 0.0375 (15) | 0.0610 (17) | 0.0630 (18) | 0.0030 (13) | 0.0200 (14) | 0.0106 (14) |
| C16 | 0.0445 (15) | 0.0535 (16) | 0.0399 (13) | 0.0011 (12) | 0.0192 (12) | 0.0023 (12) |
| Br1—C14 | 1.903 (3) | C5—H5 | 0.9300 |
| O1—C1 | 1.376 (3) | C6—C7 | 1.430 (3) |
| O1—C9 | 1.384 (3) | C7—C8 | 1.346 (3) |
| O2—C9 | 1.200 (3) | C7—H7 | 0.9300 |
| O3—C10 | 1.198 (3) | C8—C9 | 1.463 (3) |
| O4—C10 | 1.358 (3) | C8—C10 | 1.479 (3) |
| O4—C11 | 1.403 (3) | C11—C12 | 1.372 (3) |
| C1—C2 | 1.382 (4) | C11—C16 | 1.377 (3) |
| C1—C6 | 1.387 (4) | C12—C13 | 1.385 (4) |
| C2—C3 | 1.373 (5) | C12—H12 | 0.9300 |
| C2—H2 | 0.9300 | C13—C14 | 1.375 (4) |
| C3—C4 | 1.380 (5) | C13—H13 | 0.9300 |
| C3—H3 | 0.9300 | C14—C15 | 1.368 (4) |
| C4—C5 | 1.374 (4) | C15—C16 | 1.381 (4) |
| C4—H4 | 0.9300 | C15—H15 | 0.9300 |
| C5—C6 | 1.402 (4) | C16—H16 | 0.9300 |
| C1—O1—C9 | 122.67 (19) | C9—C8—C10 | 118.1 (2) |
| C10—O4—C11 | 118.88 (18) | O2—C9—O1 | 116.2 (2) |
| O1—C1—C2 | 117.5 (2) | O2—C9—C8 | 127.5 (2) |
| O1—C1—C6 | 121.0 (2) | O1—C9—C8 | 116.3 (2) |
| C2—C1—C6 | 121.5 (3) | O3—C10—O4 | 123.6 (2) |
| C3—C2—C1 | 118.6 (3) | O3—C10—C8 | 126.2 (2) |
| C3—C2—H2 | 120.7 | O4—C10—C8 | 110.2 (2) |
| C1—C2—H2 | 120.7 | C12—C11—C16 | 121.9 (2) |
| C2—C3—C4 | 121.3 (3) | C12—C11—O4 | 115.9 (2) |
| C2—C3—H3 | 119.4 | C16—C11—O4 | 122.1 (2) |
| C4—C3—H3 | 119.4 | C11—C12—C13 | 119.1 (2) |
| C5—C4—C3 | 120.2 (3) | C11—C12—H12 | 120.4 |
| C5—C4—H4 | 119.9 | C13—C12—H12 | 120.4 |
| C3—C4—H4 | 119.9 | C14—C13—C12 | 119.0 (2) |
| C4—C5—C6 | 119.8 (3) | C14—C13—H13 | 120.5 |
| C4—C5—H5 | 120.1 | C12—C13—H13 | 120.5 |
| C6—C5—H5 | 120.1 | C15—C14—C13 | 121.6 (2) |
| C1—C6—C5 | 118.7 (2) | C15—C14—Br1 | 119.5 (2) |
| C1—C6—C7 | 117.9 (2) | C13—C14—Br1 | 118.9 (2) |
| C5—C6—C7 | 123.3 (2) | C14—C15—C16 | 119.7 (2) |
| C8—C7—C6 | 121.3 (2) | C14—C15—H15 | 120.2 |
| C8—C7—H7 | 119.4 | C16—C15—H15 | 120.2 |
| C6—C7—H7 | 119.4 | C11—C16—C15 | 118.7 (2) |
| C7—C8—C9 | 120.8 (2) | C11—C16—H16 | 120.7 |
| C7—C8—C10 | 121.0 (2) | C15—C16—H16 | 120.7 |
| C9—O1—C1—C2 | 176.4 (2) | C7—C8—C9—O1 | 2.0 (3) |
| C9—O1—C1—C6 | −3.1 (4) | C10—C8—C9—O1 | −173.9 (2) |
| O1—C1—C2—C3 | −179.7 (2) | C11—O4—C10—O3 | 6.3 (3) |
| C6—C1—C2—C3 | −0.2 (4) | C11—O4—C10—C8 | −170.71 (19) |
| C1—C2—C3—C4 | −0.7 (4) | C7—C8—C10—O3 | −148.3 (3) |
| C2—C3—C4—C5 | 0.9 (5) | C9—C8—C10—O3 | 27.6 (4) |
| C3—C4—C5—C6 | −0.2 (4) | C7—C8—C10—O4 | 28.7 (3) |
| O1—C1—C6—C5 | −179.7 (2) | C9—C8—C10—O4 | −155.5 (2) |
| C2—C1—C6—C5 | 0.9 (4) | C10—O4—C11—C12 | 124.6 (2) |
| O1—C1—C6—C7 | 2.8 (3) | C10—O4—C11—C16 | −59.7 (3) |
| C2—C1—C6—C7 | −176.7 (2) | C16—C11—C12—C13 | 0.4 (4) |
| C4—C5—C6—C1 | −0.7 (4) | O4—C11—C12—C13 | 176.2 (2) |
| C4—C5—C6—C7 | 176.7 (3) | C11—C12—C13—C14 | −0.5 (4) |
| C1—C6—C7—C8 | −0.1 (3) | C12—C13—C14—C15 | 0.5 (4) |
| C5—C6—C7—C8 | −177.6 (2) | C12—C13—C14—Br1 | −177.94 (19) |
| C6—C7—C8—C9 | −2.2 (3) | C13—C14—C15—C16 | −0.5 (4) |
| C6—C7—C8—C10 | 173.5 (2) | Br1—C14—C15—C16 | 178.0 (2) |
| C1—O1—C9—O2 | 179.7 (2) | C12—C11—C16—C15 | −0.3 (4) |
| C1—O1—C9—C8 | 0.7 (3) | O4—C11—C16—C15 | −175.9 (2) |
| C7—C8—C9—O2 | −176.9 (3) | C14—C15—C16—C11 | 0.4 (4) |
| C10—C8—C9—O2 | 7.3 (4) |
| H··· | ||||
| C12—H12···O3i | 0.93 | 2.40 | 3.124 (3) | 134 |
Hydrogen-bond geometry (, )
|
|
| H |
|
|
|---|---|---|---|---|
| C12H12O3i | 0.93 | 2.40 | 3.124(3) | 134 |
Symmetry code: (i) .