organic compounds
(E)-3-(4-Hydroxy-3-methoxyphenyl)-1-(4-hydroxyphenyl)prop-2-en-1-one
aPG and Research Department of Physics, Queen Mary's College, Chennai-4, Tamilnadu, India, and bPG and Research Department of Chemistry, Presidency College, Chennai-5, Tamil Nadu, India
*Correspondence e-mail: guqmc@yahoo.com
In the title compound, C16H14O4, there is an intramolecular O—H⋯O hydrogen bond. The benzene rings are inclined to one another by 13.89 (9)°. The prop-2-en-1-one group is twisted slightly, the O=C—Car—Car (ar = aromatic) and C=C—C=O torsion angles being −10.4 (3) and −7.4 (3)°, respectively. In the crystal, molecules are linked by O—H⋯O hydrogen bonds, forming chains along [100]. These chains are further linked by O—H⋯O hydrogen bonds, forming corrugated sheets lying parallel to (010). There are C—H⋯π interactions present within the sheets.
CCDC reference: 991699
Related literature
For the biological activity of et al. (2005); Di Carlo et al. (1999); Troeberg et al. (2000); Ni et al. (2004). For a related structure, see: Jasinski et al. (2011). For the synthesis, see: Sidharthan et al. (2012); Chitra et al. (2013). For standard bond lengths, see: Allen et al. (1987).
and chalcone derivatives, see: MaraisExperimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
CCDC reference: 991699
10.1107/S1600536814008757/su2713sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814008757/su2713Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814008757/su2713Isup3.cml
The title compound was synthesized by a published procedure using the acid catalyzed Claisen-Schmidt reaction (Sidharthan et al., 2012; Chitra et al., 2013) Dry HCl gas was passed through a well cooled and stirred solution of 4-hydroxyacetophenone (0.02 mol) and vanillin (0.02 mol) in 125 ml of dry ethanol, placed in a 250 ml round-bottomed flask, for about 1 h. A wine-red coloured solution was formed to which ice cold water was added. Yellow block-like crystals of the title compound separated and were washed with double distilled water and re-crystallized from hot ethanol (Yield 85%; M.p. 454 K).
The OH H atoms were located from difference Fourier maps and refined with Uiso(H)= 1.5Ueq(O). The C-bound H atoms were positioned geometrically and treated as riding atoms: C—H distance of 0.93 - 0.96 Å with Uiso(H)= 1.5Ueq(C-methyl) and = 1.2Ueq(C) for other H atom.
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The molecular structure of the title molecule, with atom labelling. Displacement ellipsoids are drawn at the 30% probability level. | |
Fig. 2. A view along the x axis of the crystal packing of the title compound. Hydrogen bonds are shown as dashed lines (see Table 1 for details). |
C16H14O4 | F(000) = 1136 |
Mr = 270.27 | Dx = 1.297 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 3441 reflections |
a = 16.2808 (8) Å | θ = 2.5–28.3° |
b = 10.4348 (5) Å | µ = 0.09 mm−1 |
c = 16.2905 (7) Å | T = 293 K |
V = 2767.5 (2) Å3 | Block, yellow |
Z = 8 | 0.35 × 0.30 × 0.25 mm |
Bruker Kappa APEXII CCD diffractometer | 3441 independent reflections |
Radiation source: fine-focus sealed tube | 1935 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
ω and ϕ scan | θmax = 28.3°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −21→17 |
Tmin = 0.968, Tmax = 0.977 | k = −13→7 |
12921 measured reflections | l = −21→21 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.039 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.128 | w = 1/[σ2(Fo2) + (0.0473P)2 + 0.8783P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max = 0.004 |
3344 reflections | Δρmax = 0.18 e Å−3 |
189 parameters | Δρmin = −0.20 e Å−3 |
2 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0024 (6) |
C16H14O4 | V = 2767.5 (2) Å3 |
Mr = 270.27 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 16.2808 (8) Å | µ = 0.09 mm−1 |
b = 10.4348 (5) Å | T = 293 K |
c = 16.2905 (7) Å | 0.35 × 0.30 × 0.25 mm |
Bruker Kappa APEXII CCD diffractometer | 3441 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 1935 reflections with I > 2σ(I) |
Tmin = 0.968, Tmax = 0.977 | Rint = 0.027 |
12921 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 2 restraints |
wR(F2) = 0.128 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.18 e Å−3 |
3344 reflections | Δρmin = −0.20 e Å−3 |
189 parameters |
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 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 > σ(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. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.21682 (7) | 0.58070 (13) | 0.26522 (8) | 0.0532 (4) | |
O2 | 0.59318 (7) | 0.69018 (13) | 0.32421 (9) | 0.0594 (4) | |
H2O | 0.6310 (12) | 0.649 (2) | 0.2968 (14) | 0.089* | |
O3 | 0.28796 (9) | 0.08570 (16) | −0.06956 (10) | 0.0762 (5) | |
O4 | 0.13699 (9) | −0.00902 (16) | −0.07979 (10) | 0.0708 (5) | |
H4O | 0.1798 (13) | −0.024 (3) | −0.1090 (16) | 0.106* | |
C1 | 0.43059 (10) | 0.50808 (17) | 0.22500 (11) | 0.0431 (4) | |
H1 | 0.4245 | 0.4397 | 0.1889 | 0.052* | |
C2 | 0.50835 (10) | 0.54733 (17) | 0.24660 (11) | 0.0445 (4) | |
H2 | 0.5541 | 0.5065 | 0.2246 | 0.053* | |
C3 | 0.51802 (10) | 0.64693 (17) | 0.30075 (11) | 0.0423 (4) | |
C4 | 0.44972 (11) | 0.70803 (18) | 0.33262 (12) | 0.0511 (5) | |
H4 | 0.4562 | 0.7759 | 0.3690 | 0.061* | |
C5 | 0.37224 (10) | 0.66855 (17) | 0.31058 (11) | 0.0461 (4) | |
H5 | 0.3267 | 0.7097 | 0.3327 | 0.055* | |
C6 | 0.36105 (9) | 0.56830 (15) | 0.25593 (10) | 0.0366 (4) | |
C7 | 0.27741 (10) | 0.53112 (17) | 0.23093 (10) | 0.0400 (4) | |
C8 | 0.26703 (10) | 0.43695 (18) | 0.16605 (11) | 0.0453 (4) | |
H8 | 0.3133 | 0.4132 | 0.1362 | 0.054* | |
C9 | 0.19621 (11) | 0.38287 (17) | 0.14669 (11) | 0.0459 (4) | |
H9 | 0.1504 | 0.4111 | 0.1755 | 0.055* | |
C10 | 0.18214 (10) | 0.28457 (17) | 0.08558 (11) | 0.0444 (4) | |
C11 | 0.10435 (11) | 0.2317 (2) | 0.07729 (12) | 0.0523 (5) | |
H11 | 0.0613 | 0.2625 | 0.1092 | 0.063* | |
C12 | 0.09021 (12) | 0.1337 (2) | 0.02206 (12) | 0.0570 (5) | |
H12 | 0.0378 | 0.0990 | 0.0174 | 0.068* | |
C13 | 0.15256 (12) | 0.08717 (19) | −0.02586 (11) | 0.0505 (5) | |
C14 | 0.23128 (11) | 0.13987 (18) | −0.01877 (12) | 0.0496 (5) | |
C15 | 0.24529 (11) | 0.23674 (18) | 0.03604 (11) | 0.0494 (5) | |
H15 | 0.2977 | 0.2714 | 0.0405 | 0.059* | |
C16 | 0.37141 (14) | 0.1250 (3) | −0.0603 (2) | 0.1069 (11) | |
H16A | 0.4061 | 0.0719 | −0.0937 | 0.160* | |
H16B | 0.3873 | 0.1169 | −0.0038 | 0.160* | |
H16C | 0.3770 | 0.2128 | −0.0772 | 0.160* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0284 (7) | 0.0681 (9) | 0.0632 (8) | 0.0049 (6) | 0.0022 (5) | −0.0101 (7) |
O2 | 0.0294 (7) | 0.0634 (9) | 0.0855 (10) | −0.0054 (6) | −0.0028 (6) | −0.0207 (8) |
O3 | 0.0523 (9) | 0.0907 (12) | 0.0856 (11) | −0.0047 (8) | −0.0006 (8) | −0.0401 (9) |
O4 | 0.0661 (10) | 0.0756 (10) | 0.0707 (10) | −0.0206 (8) | −0.0097 (7) | −0.0194 (8) |
C1 | 0.0338 (9) | 0.0456 (10) | 0.0500 (10) | 0.0044 (7) | −0.0024 (7) | −0.0103 (8) |
C2 | 0.0275 (9) | 0.0510 (10) | 0.0550 (10) | 0.0064 (7) | 0.0007 (7) | −0.0087 (9) |
C3 | 0.0290 (9) | 0.0447 (10) | 0.0530 (10) | −0.0026 (7) | −0.0014 (7) | −0.0011 (8) |
C4 | 0.0373 (10) | 0.0531 (11) | 0.0629 (12) | −0.0020 (8) | 0.0042 (8) | −0.0216 (9) |
C5 | 0.0310 (9) | 0.0517 (10) | 0.0555 (11) | 0.0030 (8) | 0.0083 (7) | −0.0108 (9) |
C6 | 0.0287 (8) | 0.0403 (9) | 0.0407 (9) | 0.0004 (7) | 0.0005 (6) | 0.0004 (8) |
C7 | 0.0303 (9) | 0.0444 (9) | 0.0452 (9) | 0.0018 (7) | 0.0005 (7) | 0.0033 (8) |
C8 | 0.0307 (9) | 0.0561 (11) | 0.0491 (10) | 0.0000 (8) | −0.0005 (7) | −0.0049 (9) |
C9 | 0.0342 (10) | 0.0514 (10) | 0.0520 (10) | −0.0002 (8) | −0.0001 (8) | 0.0006 (9) |
C10 | 0.0347 (9) | 0.0494 (10) | 0.0490 (10) | −0.0053 (8) | −0.0055 (8) | 0.0043 (8) |
C11 | 0.0390 (10) | 0.0655 (12) | 0.0524 (11) | −0.0099 (9) | −0.0016 (8) | 0.0033 (10) |
C12 | 0.0441 (11) | 0.0695 (13) | 0.0575 (12) | −0.0221 (10) | −0.0100 (9) | 0.0057 (10) |
C13 | 0.0516 (12) | 0.0526 (11) | 0.0475 (10) | −0.0106 (9) | −0.0139 (9) | 0.0030 (9) |
C14 | 0.0426 (11) | 0.0545 (11) | 0.0518 (10) | −0.0028 (9) | −0.0076 (8) | −0.0008 (9) |
C15 | 0.0361 (9) | 0.0552 (11) | 0.0568 (11) | −0.0071 (8) | −0.0065 (8) | −0.0035 (9) |
C16 | 0.0457 (14) | 0.139 (3) | 0.136 (3) | −0.0060 (15) | 0.0096 (14) | −0.076 (2) |
O1—C7 | 1.2461 (19) | C7—C8 | 1.453 (2) |
O2—C3 | 1.359 (2) | C8—C9 | 1.322 (2) |
O2—H2O | 0.871 (16) | C8—H8 | 0.9300 |
O3—C14 | 1.362 (2) | C9—C10 | 1.448 (2) |
O3—C16 | 1.427 (3) | C9—H9 | 0.9300 |
O4—C13 | 1.358 (2) | C10—C11 | 1.388 (2) |
O4—H4O | 0.857 (17) | C10—C15 | 1.399 (2) |
C1—C2 | 1.376 (2) | C11—C12 | 1.381 (3) |
C1—C6 | 1.389 (2) | C11—H11 | 0.9300 |
C1—H1 | 0.9300 | C12—C13 | 1.370 (3) |
C2—C3 | 1.372 (2) | C12—H12 | 0.9300 |
C2—H2 | 0.9300 | C13—C14 | 1.399 (2) |
C3—C4 | 1.383 (2) | C14—C15 | 1.368 (3) |
C4—C5 | 1.375 (2) | C15—H15 | 0.9300 |
C4—H4 | 0.9300 | C16—H16A | 0.9600 |
C5—C6 | 1.386 (2) | C16—H16B | 0.9600 |
C5—H5 | 0.9300 | C16—H16C | 0.9600 |
C6—C7 | 1.473 (2) | ||
C3—O2—H2O | 109.3 (16) | C8—C9—C10 | 127.20 (17) |
C14—O3—C16 | 117.46 (16) | C8—C9—H9 | 116.4 |
C13—O4—H4O | 110 (2) | C10—C9—H9 | 116.4 |
C2—C1—C6 | 121.48 (16) | C11—C10—C15 | 118.20 (17) |
C2—C1—H1 | 119.3 | C11—C10—C9 | 119.54 (17) |
C6—C1—H1 | 119.3 | C15—C10—C9 | 122.21 (15) |
C3—C2—C1 | 119.68 (16) | C12—C11—C10 | 120.65 (18) |
C3—C2—H2 | 120.2 | C12—C11—H11 | 119.7 |
C1—C2—H2 | 120.2 | C10—C11—H11 | 119.7 |
O2—C3—C2 | 122.38 (15) | C13—C12—C11 | 120.68 (17) |
O2—C3—C4 | 117.73 (16) | C13—C12—H12 | 119.7 |
C2—C3—C4 | 119.88 (15) | C11—C12—H12 | 119.7 |
C5—C4—C3 | 120.11 (17) | O4—C13—C12 | 119.51 (17) |
C5—C4—H4 | 119.9 | O4—C13—C14 | 120.99 (19) |
C3—C4—H4 | 119.9 | C12—C13—C14 | 119.50 (18) |
C4—C5—C6 | 120.98 (16) | O3—C14—C15 | 126.17 (17) |
C4—C5—H5 | 119.5 | O3—C14—C13 | 114.04 (17) |
C6—C5—H5 | 119.5 | C15—C14—C13 | 119.79 (18) |
C5—C6—C1 | 117.86 (15) | C14—C15—C10 | 121.17 (17) |
C5—C6—C7 | 119.86 (15) | C14—C15—H15 | 119.4 |
C1—C6—C7 | 122.26 (15) | C10—C15—H15 | 119.4 |
O1—C7—C8 | 120.98 (15) | O3—C16—H16A | 109.5 |
O1—C7—C6 | 119.90 (15) | O3—C16—H16B | 109.5 |
C8—C7—C6 | 119.12 (14) | H16A—C16—H16B | 109.5 |
C9—C8—C7 | 124.31 (16) | O3—C16—H16C | 109.5 |
C9—C8—H8 | 117.8 | H16A—C16—H16C | 109.5 |
C7—C8—H8 | 117.8 | H16B—C16—H16C | 109.5 |
C6—C1—C2—C3 | 0.9 (3) | C8—C9—C10—C11 | 175.35 (19) |
C1—C2—C3—O2 | −179.82 (17) | C8—C9—C10—C15 | −2.2 (3) |
C1—C2—C3—C4 | −0.7 (3) | C15—C10—C11—C12 | 0.6 (3) |
O2—C3—C4—C5 | 179.66 (17) | C9—C10—C11—C12 | −177.03 (17) |
C2—C3—C4—C5 | 0.5 (3) | C10—C11—C12—C13 | −0.3 (3) |
C3—C4—C5—C6 | −0.5 (3) | C11—C12—C13—O4 | −179.87 (18) |
C4—C5—C6—C1 | 0.8 (3) | C11—C12—C13—C14 | −0.2 (3) |
C4—C5—C6—C7 | −177.68 (17) | C16—O3—C14—C15 | 5.9 (3) |
C2—C1—C6—C5 | −1.0 (3) | C16—O3—C14—C13 | −173.8 (2) |
C2—C1—C6—C7 | 177.44 (16) | O4—C13—C14—O3 | −0.3 (3) |
C5—C6—C7—O1 | −7.4 (3) | C12—C13—C14—O3 | −179.98 (18) |
C1—C6—C7—O1 | 174.18 (16) | O4—C13—C14—C15 | 179.99 (17) |
C5—C6—C7—C8 | 172.36 (16) | C12—C13—C14—C15 | 0.3 (3) |
C1—C6—C7—C8 | −6.0 (2) | O3—C14—C15—C10 | −179.67 (18) |
O1—C7—C8—C9 | −10.4 (3) | C13—C14—C15—C10 | 0.0 (3) |
C6—C7—C8—C9 | 169.82 (17) | C11—C10—C15—C14 | −0.5 (3) |
C7—C8—C9—C10 | −176.97 (17) | C9—C10—C15—C14 | 177.08 (17) |
Cg is the centroid of the C1–C6 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4O···O3 | 0.86 (2) | 2.20 (3) | 2.655 (2) | 113 (2) |
O2—H2O···O1i | 0.87 (2) | 1.87 (2) | 2.7349 (18) | 173 (2) |
O4—H4O···O1ii | 0.86 (2) | 2.22 (2) | 2.937 (2) | 141 (3) |
C16—H16A···Cgii | 0.96 | 2.86 | 3.747 (3) | 155 |
Symmetry codes: (i) x+1/2, y, −z+1/2; (ii) x, −y+1/2, z−1/2. |
Cg is the centroid of the C1–C6 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4O···O3 | 0.857 (17) | 2.20 (3) | 2.655 (2) | 113 (2) |
O2—H2O···O1i | 0.871 (16) | 1.868 (16) | 2.7349 (18) | 173 (2) |
O4—H4O···O1ii | 0.857 (17) | 2.22 (2) | 2.937 (2) | 141 (3) |
C16—H16A···Cgii | 0.96 | 2.86 | 3.747 (3) | 155 |
Symmetry codes: (i) x+1/2, y, −z+1/2; (ii) x, −y+1/2, z−1/2. |
Acknowledgements
The authors thank Professor D. Velmurugan, Centre for Advanced Study in Crystallography and Biophysics, University of Madras, for providing data-collection and computer facilities.
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Chalcones are known as the precursors of all flavonoid type natural products in biosynthesis (Marais et al., 2005). They are a major class of natural products with widespread distribution in fruits, vegetables, spices, tea and soy based food stuff and have been the subjects of interest for their significant pharmacological activities (Di Carlo et al., 1999). Many chalcones have been described for their high anti-malarial activity, probably as a result of addition of nucleophilic species to the double bond of the enone (Troeberg et al., 2000). A review of anti-infective and anti-inflammatory chalcones and recent advances in therapeutic chalcones have been reported (Ni et al., 2004). To understand the three dimensional features of this class of compounds, we report herein on the crystal structure of the title compound.
The molecular structure of the title molecule is illustrated in Fig. 1. The bond lengths (Allen et al., 1987) and bond angles are within normal values. The bond angles C6—C7—C8 = 119.12 (14) ° and C8═C9—C10 = 127.20 (17) ° are comparable with those in a similar reported structure (E)-3-(3,4-Dimethoxyphenyl)-1-(2-hydroxyphenyl)prop-2-en-1-one (2E)-3-(3,4-Dimethoxyphenyl)-1-(4-hydroxyphenyl)prop-2-en-1-one (Jasinski et al., 2011). This may be due to the presence of the keto group and associated steric forces. The prop-2-en-1-one group is twisted slightly with torsion angles O1═C7—C8—C9 and C5—C6—C7═O1 being -10.4 (3) and -7.4 (3) °, respectively. These values are comparable with the value of -6.9 (2) and -15.9 (2) ° reported for the above mentioned structure.
In the crystal, molecules are linked by O—H···O hydrogen bonds forming chains propagating along the a axis (Table 1 and Fig. 2). These chains are linked by further O—H···O hydrogen bonds forming corrugated sheets lying parallel to (010). Within the sheets there are C—H···π interactions present (Table 1). In total each molecule is linked to four neighbours by O—H···O hydrogen bonds (Table 1 and Fig. 2). Atom O4 acts as a bifurcated donor forming intra- and inter-molecular O—H···O hydrogen bonds (Table 1 and Fig. 2).