organic compounds
3-(4-Fluorophenyl)-1-(4-methoxyphenyl)prop-2-en-1-one
aNew Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China, and bMicroscale Science Institute, Weifang University, Weifang 261061, People's Republic of China
*Correspondence e-mail: ffjian2008@163.com
The title compound, C16H13FO2, was prepared from 4-methoxyhypnone and 4-fluorobenzophenone by Claisen–Schmidt condensation. All the bond lengths and bond angles are in normal ranges. The dihedral angle formed by the two benzene rings is 33.49 (2)°. The crystal packing is stabilized by intermolecular C—H⋯O hydrogen-bonding interactions.
Related literature
For the biological activity of et al. (1998); Anto et al. (1994). For the effectiveness of against cancer, see: De Vincenzo et al. (2000); Dimmock et al. (1998). For a related structure, see: Guo et al. (2008).
see: HsiehExperimental
Crystal data
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Data collection
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Refinement
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Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536809018121/at2773sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809018121/at2773Isup2.hkl
A mixture of the 4-methoxyhypnone (0.02 mol), 4-fluorobenzophenone (0.02 mol) and 10% NaOH (10 ml) was stirred in ethanol (30 ml) for 3 h to afford the title compound (yield 83%). Single crystals suitable for X-ray measurements were obtailed by recrystallization from ethanol at room temperature.
H atoms were positioned geometrically and allowed to ride on their parent atoms, with C—H = 0.93–0.96 Å, respectively, and with Uiso(H) = 1.2 or 1.5Ueq of the parent atoms.
Data collection: SMART (Bruker, 1997); cell
SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C16H13FO2 | F(000) = 1072 |
Mr = 256.26 | Dx = 1.327 Mg m−3 Dm = 1.327 Mg m−3 Dm measured by not measured |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 4576 reflections |
a = 7.457 (4) Å | θ = 2.6–27.2° |
b = 11.072 (6) Å | µ = 0.10 mm−1 |
c = 31.063 (18) Å | T = 273 K |
V = 2565 (3) Å3 | Bar, yellow |
Z = 8 | 0.13 × 0.12 × 0.09 mm |
Bruker SMART CCD area-detector diffractometer | 2203 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.039 |
Graphite monochromator | θmax = 28.1°, θmin = 2.6° |
ϕ and ω scans | h = −8→9 |
14904 measured reflections | k = −14→14 |
3050 independent reflections | l = −31→40 |
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-atom parameters constrained |
wR(F2) = 0.116 | w = 1/[σ2(Fo2) + (0.0529P)2 + 0.3952P] where P = (Fo2 + 2Fc2)/3 |
S = 1.01 | (Δ/σ)max = 0.001 |
3050 reflections | Δρmax = 0.17 e Å−3 |
173 parameters | Δρmin = −0.12 e Å−3 |
0 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: 0.0151 (14) |
C16H13FO2 | V = 2565 (3) Å3 |
Mr = 256.26 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 7.457 (4) Å | µ = 0.10 mm−1 |
b = 11.072 (6) Å | T = 273 K |
c = 31.063 (18) Å | 0.13 × 0.12 × 0.09 mm |
Bruker SMART CCD area-detector diffractometer | 2203 reflections with I > 2σ(I) |
14904 measured reflections | Rint = 0.039 |
3050 independent reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.17 e Å−3 |
3050 reflections | Δρmin = −0.12 e Å−3 |
173 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 | ||
O2 | 0.19197 (16) | 0.39463 (9) | 0.32285 (3) | 0.0679 (3) | |
O1 | 0.09858 (15) | 0.57395 (10) | 0.13185 (3) | 0.0674 (3) | |
C16 | 0.15026 (17) | 0.49647 (12) | 0.31027 (4) | 0.0497 (3) | |
C9 | 0.13654 (16) | 0.52293 (11) | 0.26375 (4) | 0.0447 (3) | |
C15 | 0.06589 (19) | 0.56911 (13) | 0.38189 (5) | 0.0567 (4) | |
H15A | 0.0689 | 0.4883 | 0.3900 | 0.068* | |
C10 | 0.07845 (18) | 0.63325 (11) | 0.24765 (4) | 0.0484 (3) | |
H10A | 0.0485 | 0.6945 | 0.2668 | 0.058* | |
C12 | 0.10839 (18) | 0.56345 (12) | 0.17528 (4) | 0.0504 (3) | |
F | −0.15021 (16) | 0.89082 (12) | 0.50973 (3) | 0.1015 (4) | |
C14 | 0.10856 (19) | 0.59300 (12) | 0.34157 (4) | 0.0535 (3) | |
H14A | 0.1125 | 0.6731 | 0.3326 | 0.064* | |
C11 | 0.06382 (18) | 0.65460 (12) | 0.20395 (4) | 0.0498 (3) | |
H11A | 0.0246 | 0.7292 | 0.1939 | 0.060* | |
C4 | 0.0339 (2) | 0.77956 (13) | 0.41030 (4) | 0.0578 (4) | |
H4A | 0.0854 | 0.8098 | 0.3852 | 0.069* | |
C8 | 0.17978 (19) | 0.43239 (12) | 0.23404 (5) | 0.0550 (4) | |
H8A | 0.2185 | 0.3575 | 0.2439 | 0.066* | |
C7 | 0.1660 (2) | 0.45230 (13) | 0.19088 (5) | 0.0600 (4) | |
H7A | 0.1953 | 0.3910 | 0.1717 | 0.072* | |
C3 | 0.01471 (18) | 0.65509 (13) | 0.41510 (4) | 0.0533 (3) | |
C5 | −0.0214 (2) | 0.85891 (16) | 0.44174 (5) | 0.0668 (4) | |
H5A | −0.0084 | 0.9418 | 0.4381 | 0.080* | |
C6 | −0.0961 (2) | 0.81261 (18) | 0.47852 (5) | 0.0702 (4) | |
C2 | −0.0617 (2) | 0.61339 (16) | 0.45340 (5) | 0.0682 (4) | |
H2A | −0.0753 | 0.5307 | 0.4576 | 0.082* | |
C13 | 0.0497 (2) | 0.68788 (15) | 0.11415 (5) | 0.0679 (4) | |
H13A | 0.0469 | 0.6822 | 0.0833 | 0.102* | |
H13B | 0.1360 | 0.7477 | 0.1226 | 0.102* | |
H13C | −0.0667 | 0.7106 | 0.1246 | 0.102* | |
C1 | −0.1175 (2) | 0.69190 (19) | 0.48511 (5) | 0.0755 (5) | |
H1A | −0.1686 | 0.6631 | 0.5104 | 0.091* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O2 | 0.0827 (8) | 0.0466 (6) | 0.0744 (7) | 0.0011 (5) | −0.0083 (6) | 0.0087 (5) |
O1 | 0.0825 (8) | 0.0703 (7) | 0.0494 (6) | 0.0061 (6) | −0.0002 (5) | −0.0128 (5) |
C16 | 0.0457 (7) | 0.0435 (7) | 0.0600 (8) | −0.0068 (5) | −0.0021 (6) | 0.0038 (6) |
C9 | 0.0386 (6) | 0.0389 (6) | 0.0567 (7) | −0.0051 (5) | 0.0001 (5) | −0.0038 (5) |
C15 | 0.0590 (8) | 0.0532 (8) | 0.0578 (8) | −0.0064 (6) | −0.0015 (6) | 0.0086 (6) |
C10 | 0.0546 (7) | 0.0400 (6) | 0.0504 (7) | −0.0005 (5) | 0.0041 (6) | −0.0071 (5) |
C12 | 0.0474 (7) | 0.0532 (8) | 0.0508 (7) | −0.0031 (6) | 0.0009 (6) | −0.0102 (6) |
F | 0.1113 (9) | 0.1308 (10) | 0.0624 (6) | 0.0123 (7) | 0.0144 (6) | −0.0209 (6) |
C14 | 0.0613 (8) | 0.0466 (7) | 0.0525 (8) | −0.0033 (6) | −0.0038 (6) | 0.0037 (6) |
C11 | 0.0551 (8) | 0.0425 (7) | 0.0516 (7) | 0.0011 (6) | 0.0011 (6) | −0.0035 (5) |
C4 | 0.0687 (9) | 0.0642 (9) | 0.0407 (7) | −0.0032 (7) | −0.0014 (6) | 0.0075 (6) |
C8 | 0.0549 (8) | 0.0407 (7) | 0.0693 (9) | 0.0032 (6) | −0.0018 (6) | −0.0069 (6) |
C7 | 0.0638 (9) | 0.0497 (8) | 0.0665 (9) | 0.0064 (6) | 0.0020 (7) | −0.0202 (7) |
C3 | 0.0531 (7) | 0.0624 (9) | 0.0443 (7) | −0.0044 (6) | −0.0045 (6) | 0.0098 (6) |
C5 | 0.0815 (11) | 0.0689 (10) | 0.0501 (8) | 0.0018 (8) | −0.0055 (7) | 0.0013 (7) |
C6 | 0.0671 (10) | 0.0968 (13) | 0.0467 (8) | 0.0076 (9) | −0.0016 (7) | −0.0049 (8) |
C2 | 0.0699 (10) | 0.0777 (10) | 0.0571 (9) | −0.0075 (8) | 0.0018 (7) | 0.0184 (8) |
C13 | 0.0723 (10) | 0.0804 (11) | 0.0508 (8) | −0.0039 (8) | 0.0007 (7) | −0.0011 (7) |
C1 | 0.0704 (10) | 0.1107 (15) | 0.0454 (8) | −0.0035 (10) | 0.0081 (7) | 0.0135 (9) |
O2—C16 | 1.2334 (17) | C4—C5 | 1.377 (2) |
O1—C12 | 1.3561 (18) | C4—C3 | 1.394 (2) |
O1—C13 | 1.424 (2) | C4—H4A | 0.9300 |
C16—C9 | 1.478 (2) | C8—C7 | 1.363 (2) |
C16—C14 | 1.478 (2) | C8—H8A | 0.9300 |
C9—C10 | 1.3892 (19) | C7—H7A | 0.9300 |
C9—C8 | 1.4002 (19) | C3—C2 | 1.398 (2) |
C15—C14 | 1.319 (2) | C5—C6 | 1.371 (2) |
C15—C3 | 1.455 (2) | C5—H5A | 0.9300 |
C15—H15A | 0.9300 | C6—C1 | 1.362 (3) |
C10—C11 | 1.382 (2) | C2—C1 | 1.378 (3) |
C10—H10A | 0.9300 | C2—H2A | 0.9300 |
C12—C11 | 1.3864 (19) | C13—H13A | 0.9600 |
C12—C7 | 1.391 (2) | C13—H13B | 0.9600 |
F—C6 | 1.361 (2) | C13—H13C | 0.9600 |
C14—H14A | 0.9300 | C1—H1A | 0.9300 |
C11—H11A | 0.9300 | ||
C12—O1—C13 | 118.30 (11) | C7—C8—H8A | 119.5 |
O2—C16—C9 | 120.57 (12) | C9—C8—H8A | 119.5 |
O2—C16—C14 | 120.38 (13) | C8—C7—C12 | 120.62 (12) |
C9—C16—C14 | 119.03 (12) | C8—C7—H7A | 119.7 |
C10—C9—C8 | 117.65 (13) | C12—C7—H7A | 119.7 |
C10—C9—C16 | 123.23 (12) | C4—C3—C2 | 117.37 (14) |
C8—C9—C16 | 119.11 (12) | C4—C3—C15 | 122.98 (12) |
C14—C15—C3 | 127.26 (14) | C2—C3—C15 | 119.63 (14) |
C14—C15—H15A | 116.4 | C6—C5—C4 | 118.32 (16) |
C3—C15—H15A | 116.4 | C6—C5—H5A | 120.8 |
C11—C10—C9 | 121.91 (12) | C4—C5—H5A | 120.8 |
C11—C10—H10A | 119.0 | F—C6—C1 | 118.87 (15) |
C9—C10—H10A | 119.0 | F—C6—C5 | 118.44 (18) |
O1—C12—C11 | 124.31 (13) | C1—C6—C5 | 122.70 (16) |
O1—C12—C7 | 116.05 (12) | C1—C2—C3 | 121.55 (16) |
C11—C12—C7 | 119.64 (13) | C1—C2—H2A | 119.2 |
C15—C14—C16 | 122.03 (13) | C3—C2—H2A | 119.2 |
C15—C14—H14A | 119.0 | O1—C13—H13A | 109.5 |
C16—C14—H14A | 119.0 | O1—C13—H13B | 109.5 |
C10—C11—C12 | 119.17 (13) | H13A—C13—H13B | 109.5 |
C10—C11—H11A | 120.4 | O1—C13—H13C | 109.5 |
C12—C11—H11A | 120.4 | H13A—C13—H13C | 109.5 |
C5—C4—C3 | 121.62 (14) | H13B—C13—H13C | 109.5 |
C5—C4—H4A | 119.2 | C6—C1—C2 | 118.45 (15) |
C3—C4—H4A | 119.2 | C6—C1—H1A | 120.8 |
C7—C8—C9 | 121.01 (13) | C2—C1—H1A | 120.8 |
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11A···O2i | 0.93 | 2.50 | 3.376 (2) | 158 |
C15—H15A···O2 | 0.93 | 2.50 | 2.825 (2) | 101 |
Symmetry code: (i) −x, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C16H13FO2 |
Mr | 256.26 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 273 |
a, b, c (Å) | 7.457 (4), 11.072 (6), 31.063 (18) |
V (Å3) | 2565 (3) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.13 × 0.12 × 0.09 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14904, 3050, 2203 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.662 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.116, 1.01 |
No. of reflections | 3050 |
No. of parameters | 173 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.17, −0.12 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11A···O2i | 0.93 | 2.50 | 3.376 (2) | 157.7 |
C15—H15A···O2 | 0.93 | 2.50 | 2.825 (2) | 100.5 |
Symmetry code: (i) −x, y+1/2, −z+1/2. |
Acknowledgements
The authors thank the National Natural Science Foundation of Shandong (Y2007B14; Y2008B29) and Weifang University for research grants.
References
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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.
Among flavonoids, chalcones have been identified as interesting compounds having multiple biological actions which include antiinflammatory (Hsieh et al., 1998) and antioxidant (Anto et al., 1994). Of particular interest, the effectiveness of chalcones againist cancer has been investigated (De Vincenzo et al., 2000; Dimmock et al., 1998). As part of our search for new biologically active compounds we synthesized the title compound (I) and report its crystal structure here.
In the crystal structure of compound (I) (Fig. 1), the dihedral angle formed by the benzene rings (C1–C6) and (C7–C12) is 33.49 (2)°. All the bond lengths and bond angles are in normal ranges. (Guo et al., 2008). There are intra- and intermolecular C—H···O hydrogen-bond interactions to stabilize the crystal structure (Table 1, Fig. 2).