| Literature DB >> 23476626 |
Manu Lahtinen1, Kalle Nättinen, Sami Nummelin.
Abstract
In the title compound, C16H16O4, the dihedral angle between the benzene rings is 28.9 (2)°. In the crystal, mol-ecules are packed in layers parallel to the b axis in which they are connected via weak inter-molecular C-H⋯O contacts. Face-to-face π-π inter-actions also exist between the benzene rings of adjacent mol-ecules, with centroid-centroid and plane-to-plane shift distances of 3.8597 (14) and 1.843 (2) Å, respectively.Entities:
Year: 2013 PMID: 23476626 PMCID: PMC3588445 DOI: 10.1107/S1600536813005333
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C16H16O4 | |
| Triclinic, | |
| Cu | |
| Cell parameters from 2092 reflections | |
| θ = 5.5–76.0° | |
| α = 96.589 (14)° | µ = 0.82 mm−1 |
| β = 91.472 (11)° | |
| γ = 112.493 (18)° | Plate, colourless |
| 0.29 × 0.19 × 0.04 mm |
| Agilent SuperNova (Dual, Cu at zero, Atlas) diffractometer | 2395 independent reflections |
| Radiation source: SuperNova (Cu) X-ray Source | 2025 reflections with |
| Mirror monochromator | |
| Detector resolution: 10.3953 pixels mm-1 | θmax = 69.0°, θmin = 5.5° |
| ω scans | |
| Absorption correction: analytical | |
| 3989 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 | |
| 2395 reflections | (Δ/σ)max = 0.001 |
| 184 parameters | Δρmax = 0.19 e Å−3 |
| 0 restraints | Δρmin = −0.25 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 |
| O4 | 0.72065 (19) | 0.88715 (17) | 1.15112 (6) | 0.0256 (3) | |
| O2 | 1.01438 (18) | 0.78669 (16) | 1.11239 (6) | 0.0245 (3) | |
| O18 | 0.46733 (19) | 0.23876 (16) | 0.56673 (6) | 0.0256 (3) | |
| O14 | 0.1145 (2) | 0.71333 (18) | 0.59191 (7) | 0.0301 (3) | |
| C3 | 0.8129 (3) | 0.8161 (2) | 1.09788 (9) | 0.0205 (3) | |
| C6 | 0.5135 (3) | 0.7715 (2) | 0.98314 (9) | 0.0210 (3) | |
| H6 | 0.4281 | 0.8202 | 1.0223 | 0.025* | |
| C17 | 0.4269 (3) | 0.3845 (2) | 0.61901 (9) | 0.0213 (3) | |
| C13 | 0.2432 (3) | 0.6276 (2) | 0.63282 (9) | 0.0220 (3) | |
| C7 | 0.4295 (3) | 0.7185 (2) | 0.89982 (9) | 0.0212 (3) | |
| H7 | 0.2877 | 0.7335 | 0.8827 | 0.025* | |
| C11 | 0.4573 (2) | 0.5869 (2) | 0.75182 (9) | 0.0201 (3) | |
| C5 | 0.7225 (3) | 0.7530 (2) | 1.00911 (9) | 0.0202 (3) | |
| C12 | 0.3244 (3) | 0.6839 (2) | 0.71684 (9) | 0.0214 (3) | |
| H12 | 0.2899 | 0.7865 | 0.7497 | 0.026* | |
| C16 | 0.2934 (3) | 0.4787 (2) | 0.58389 (9) | 0.0226 (3) | |
| H16 | 0.2370 | 0.4417 | 0.5269 | 0.027* | |
| C8 | 0.5486 (2) | 0.6439 (2) | 0.84072 (9) | 0.0196 (3) | |
| C9 | 0.7577 (3) | 0.6253 (2) | 0.86810 (9) | 0.0223 (3) | |
| H9 | 0.8427 | 0.5753 | 0.8292 | 0.027* | |
| C20 | 0.5067 (3) | 0.4362 (2) | 0.70285 (9) | 0.0211 (3) | |
| H20 | 0.5948 | 0.3689 | 0.7268 | 0.025* | |
| C10 | 0.8431 (3) | 0.6785 (2) | 0.95095 (9) | 0.0222 (3) | |
| H10 | 0.9851 | 0.6639 | 0.9682 | 0.027* | |
| C1 | 1.1197 (3) | 0.8460 (2) | 1.19672 (9) | 0.0255 (3) | |
| H1A | 1.2785 | 0.8419 | 1.1987 | 0.038* | |
| H1B | 1.0194 | 0.7518 | 1.2325 | 0.038* | |
| H1C | 1.1328 | 0.9848 | 1.2163 | 0.038* | |
| C19 | 0.6415 (3) | 0.1676 (3) | 0.59536 (10) | 0.0271 (3) | |
| H19A | 0.6742 | 0.0828 | 0.5495 | 0.041* | |
| H19B | 0.5810 | 0.0866 | 0.6406 | 0.041* | |
| H19C | 0.7884 | 0.2845 | 0.6156 | 0.041* | |
| C15 | 0.0299 (3) | 0.8481 (3) | 0.64007 (10) | 0.0279 (4) | |
| H15A | −0.0638 | 0.8943 | 0.6035 | 0.042* | |
| H15B | 0.1656 | 0.9662 | 0.6678 | 0.042* | |
| H15C | −0.0700 | 0.7764 | 0.6820 | 0.042* |
| O4 | 0.0290 (6) | 0.0305 (6) | 0.0189 (5) | 0.0141 (5) | 0.0027 (4) | −0.0002 (4) |
| O2 | 0.0254 (6) | 0.0301 (6) | 0.0191 (5) | 0.0135 (5) | −0.0029 (4) | −0.0018 (4) |
| O18 | 0.0309 (6) | 0.0269 (6) | 0.0208 (5) | 0.0150 (5) | −0.0011 (4) | −0.0025 (4) |
| O14 | 0.0377 (6) | 0.0365 (6) | 0.0232 (6) | 0.0235 (5) | −0.0032 (5) | 0.0010 (5) |
| C3 | 0.0208 (7) | 0.0181 (7) | 0.0214 (7) | 0.0059 (6) | 0.0011 (6) | 0.0039 (6) |
| C6 | 0.0231 (7) | 0.0198 (7) | 0.0201 (7) | 0.0084 (6) | 0.0038 (6) | 0.0012 (6) |
| C17 | 0.0219 (7) | 0.0198 (7) | 0.0201 (7) | 0.0064 (6) | 0.0033 (6) | 0.0008 (6) |
| C13 | 0.0217 (7) | 0.0231 (8) | 0.0218 (7) | 0.0087 (6) | 0.0004 (6) | 0.0051 (6) |
| C7 | 0.0213 (7) | 0.0232 (8) | 0.0199 (7) | 0.0094 (6) | 0.0013 (6) | 0.0036 (6) |
| C11 | 0.0181 (7) | 0.0202 (7) | 0.0194 (7) | 0.0044 (6) | 0.0026 (6) | 0.0034 (6) |
| C5 | 0.0221 (7) | 0.0182 (7) | 0.0187 (7) | 0.0060 (6) | 0.0019 (6) | 0.0029 (5) |
| C12 | 0.0211 (7) | 0.0221 (8) | 0.0202 (7) | 0.0079 (6) | 0.0013 (6) | 0.0015 (6) |
| C16 | 0.0246 (8) | 0.0237 (8) | 0.0180 (7) | 0.0081 (6) | 0.0006 (6) | 0.0017 (6) |
| C8 | 0.0202 (7) | 0.0169 (7) | 0.0199 (7) | 0.0050 (6) | 0.0021 (6) | 0.0029 (5) |
| C9 | 0.0223 (7) | 0.0254 (8) | 0.0192 (7) | 0.0099 (6) | 0.0033 (6) | 0.0006 (6) |
| C20 | 0.0208 (7) | 0.0211 (7) | 0.0210 (7) | 0.0077 (6) | 0.0007 (6) | 0.0031 (6) |
| C10 | 0.0195 (7) | 0.0242 (8) | 0.0229 (8) | 0.0091 (6) | 0.0011 (6) | 0.0019 (6) |
| C1 | 0.0276 (8) | 0.0288 (8) | 0.0190 (7) | 0.0107 (7) | −0.0046 (6) | 0.0008 (6) |
| C19 | 0.0272 (8) | 0.0302 (8) | 0.0258 (8) | 0.0147 (7) | 0.0010 (6) | −0.0017 (6) |
| C15 | 0.0299 (8) | 0.0294 (8) | 0.0284 (8) | 0.0164 (7) | 0.0004 (6) | 0.0021 (6) |
| O4—C3 | 1.2107 (18) | C11—C20 | 1.397 (2) |
| O2—C3 | 1.3436 (17) | C5—C10 | 1.392 (2) |
| O2—C1 | 1.4427 (17) | C12—H12 | 0.9500 |
| O18—C17 | 1.3694 (17) | C16—H16 | 0.9500 |
| O18—C19 | 1.4308 (18) | C8—C9 | 1.399 (2) |
| O14—C13 | 1.3676 (18) | C9—H9 | 0.9500 |
| O14—C15 | 1.4278 (18) | C9—C10 | 1.386 (2) |
| C3—C5 | 1.485 (2) | C20—H20 | 0.9500 |
| C6—H6 | 0.9500 | C10—H10 | 0.9500 |
| C6—C7 | 1.391 (2) | C1—H1A | 0.9800 |
| C6—C5 | 1.391 (2) | C1—H1B | 0.9800 |
| C17—C16 | 1.389 (2) | C1—H1C | 0.9800 |
| C17—C20 | 1.393 (2) | C19—H19A | 0.9800 |
| C13—C12 | 1.399 (2) | C19—H19B | 0.9800 |
| C13—C16 | 1.389 (2) | C19—H19C | 0.9800 |
| C7—H7 | 0.9500 | C15—H15A | 0.9800 |
| C7—C8 | 1.396 (2) | C15—H15B | 0.9800 |
| C11—C12 | 1.400 (2) | C15—H15C | 0.9800 |
| C11—C8 | 1.487 (2) | ||
| C3—O2—C1 | 115.97 (11) | C7—C8—C11 | 121.35 (13) |
| C17—O18—C19 | 117.27 (11) | C7—C8—C9 | 117.57 (13) |
| C13—O14—C15 | 117.93 (12) | C9—C8—C11 | 121.09 (13) |
| O4—C3—O2 | 123.42 (13) | C8—C9—H9 | 119.4 |
| O4—C3—C5 | 125.19 (13) | C10—C9—C8 | 121.19 (13) |
| O2—C3—C5 | 111.38 (12) | C10—C9—H9 | 119.4 |
| C7—C6—H6 | 120.0 | C17—C20—C11 | 120.10 (13) |
| C5—C6—H6 | 120.0 | C17—C20—H20 | 119.9 |
| C5—C6—C7 | 119.98 (13) | C11—C20—H20 | 119.9 |
| O18—C17—C16 | 115.76 (13) | C5—C10—H10 | 119.7 |
| O18—C17—C20 | 123.83 (13) | C9—C10—C5 | 120.53 (14) |
| C16—C17—C20 | 120.40 (13) | C9—C10—H10 | 119.7 |
| O14—C13—C12 | 124.10 (13) | O2—C1—H1A | 109.5 |
| O14—C13—C16 | 114.75 (13) | O2—C1—H1B | 109.5 |
| C16—C13—C12 | 121.14 (13) | O2—C1—H1C | 109.5 |
| C6—C7—H7 | 119.2 | H1A—C1—H1B | 109.5 |
| C6—C7—C8 | 121.62 (13) | H1A—C1—H1C | 109.5 |
| C8—C7—H7 | 119.2 | H1B—C1—H1C | 109.5 |
| C12—C11—C8 | 120.57 (13) | O18—C19—H19A | 109.5 |
| C20—C11—C12 | 119.93 (14) | O18—C19—H19B | 109.5 |
| C20—C11—C8 | 119.50 (13) | O18—C19—H19C | 109.5 |
| C6—C5—C3 | 119.12 (13) | H19A—C19—H19B | 109.5 |
| C6—C5—C10 | 119.11 (14) | H19A—C19—H19C | 109.5 |
| C10—C5—C3 | 121.77 (13) | H19B—C19—H19C | 109.5 |
| C13—C12—C11 | 119.01 (13) | O14—C15—H15A | 109.5 |
| C13—C12—H12 | 120.5 | O14—C15—H15B | 109.5 |
| C11—C12—H12 | 120.5 | O14—C15—H15C | 109.5 |
| C17—C16—C13 | 119.41 (14) | H15A—C15—H15B | 109.5 |
| C17—C16—H16 | 120.3 | H15A—C15—H15C | 109.5 |
| C13—C16—H16 | 120.3 | H15B—C15—H15C | 109.5 |
| O4—C3—C5—C6 | −1.2 (2) | C12—C11—C8—C7 | 28.9 (2) |
| O4—C3—C5—C10 | 177.90 (14) | C12—C11—C8—C9 | −150.86 (14) |
| O2—C3—C5—C6 | 179.48 (13) | C12—C11—C20—C17 | 0.9 (2) |
| O2—C3—C5—C10 | −1.4 (2) | C16—C17—C20—C11 | −1.4 (2) |
| O18—C17—C16—C13 | 179.66 (13) | C16—C13—C12—C11 | −0.4 (2) |
| O18—C17—C20—C11 | −179.97 (13) | C8—C11—C12—C13 | 179.45 (13) |
| O14—C13—C12—C11 | −179.23 (13) | C8—C11—C20—C17 | −178.56 (13) |
| O14—C13—C16—C17 | 178.85 (13) | C8—C9—C10—C5 | −0.3 (2) |
| C3—C5—C10—C9 | −178.42 (14) | C20—C17—C16—C13 | 1.0 (2) |
| C6—C7—C8—C11 | 179.75 (13) | C20—C11—C12—C13 | 0.0 (2) |
| C6—C7—C8—C9 | −0.4 (2) | C20—C11—C8—C7 | −151.58 (14) |
| C6—C5—C10—C9 | 0.7 (2) | C20—C11—C8—C9 | 28.6 (2) |
| C7—C6—C5—C3 | 178.20 (13) | C1—O2—C3—O4 | −0.2 (2) |
| C7—C6—C5—C10 | −0.9 (2) | C1—O2—C3—C5 | 179.10 (12) |
| C7—C8—C9—C10 | 0.2 (2) | C19—O18—C17—C16 | 167.89 (13) |
| C11—C8—C9—C10 | 179.99 (13) | C19—O18—C17—C20 | −13.5 (2) |
| C5—C6—C7—C8 | 0.8 (2) | C15—O14—C13—C12 | −9.0 (2) |
| C12—C13—C16—C17 | −0.1 (2) | C15—O14—C13—C16 | 172.12 (13) |
| H··· | ||||
| C6—H6···O2i | 0.95 | 2.89 | 3.7702 (19) | 154 |
| C7—H7···O4ii | 0.95 | 2.85 | 3.4607 (19) | 123 |
| C12—H12···O4ii | 0.95 | 2.71 | 3.644 (2) | 170 |
| C16—H16···O14iii | 0.95 | 2.65 | 3.514 (2) | 151 |
| C1—H1 | 0.98 | 2.73 | 3.665 (2) | 159 |
| C19—H19 | 0.98 | 2.65 | 3.538 (2) | 151 |
Hydrogen-bond geometry (Å, °)
|
|
| H⋯ |
|
|
|---|---|---|---|---|
| C6—H6⋯O2i | 0.95 | 2.89 | 3.7702 (19) | 154 |
| C7—H7⋯O4ii | 0.95 | 2.85 | 3.4607 (19) | 123 |
| C12—H12⋯O4ii | 0.95 | 2.71 | 3.644 (2) | 170 |
| C16—H16⋯O14iii | 0.95 | 2.65 | 3.514 (2) | 151 |
| C1—H1 | 0.98 | 2.73 | 3.665 (2) | 159 |
| C19—H19 | 0.98 | 2.65 | 3.538 (2) | 151 |
Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) .