organic compounds
1-(4-Fluorophenyl)-3-hydroxy-3-phenylprop-2-en-1-one
aHubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi 435002,People's Republic of China, and bCollege of Chemistry and Environmental Engineering, Hubei Normal University, Huangshi 435002, People's Republic of China
*Correspondence e-mail: zcy800204@163.com
In the 15H11FO2, the molecule exists in the enol form. It is stabilized by an intramolecular O—H⋯O hydrogen bond, in which the donor O—H and acceptor H⋯O distances are almost equal. The dihedral angle between the two benzene rings is 22.30 (4)°.
the title compound, CRelated literature
For background to the uses and characteristics of 1,3-diketones, see: Gilli et al. (2004); Hasegawa et al. (1997); Jang et al. (2006); Ma et al. (1999); Yoshida et al. (2005). For geometric data, see: Bertolasi et al. (1991); Wang et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1999); 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/S1600536809004747/kj2112sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809004747/kj2112Isup2.hkl
1-(4-Fluorophenyl)ethanone (1.38 g, 0.01 mol), ethyl benzoate (1.50 g, 0.01 mol), NaNH2 (0.78 g, 0.02 mol) and dry ether (40 ml) were placed in a round bottom flask. The mixture was stirred 6 h at room temperature under a blanket of nitrogen, acidified with dilute hydrochloric acid, and stirring was continued until all solids dissolved. The ether layer was separated and washed with saturated NaHCO3 solution, dried over anhydrous Na2SO4 and the solvent was removed by evaporation. The residual solid was recrystallized from an ethanol solution to give the title compound (yield 1.27 g, 52.4%, m.p. 351 K). Crystals suitable for X-ray diffraction were grown by slow evaporation of CHCl2–EtOH (1:5) solutions at room temperature.
The H atom of the hydroxyl group was located in a difference Fourier map and its position was refined freely, with Uiso(H) = 1.5 Uiso(O). The other H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H distances of 0.93 to 0.97 Å, and with Uiso(H) = 1.2 Ueq(C).
Data collection: SMART (Bruker, 1997); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); 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).Fig. 1. View of the title compound, showing the atom-labeling scheme. Displacement ellipsoids are drawn at the 50% probability level. |
C15H11FO2 | F(000) = 504 |
Mr = 242.24 | Dx = 1.340 Mg m−3 |
Monoclinic, P21/c | Melting point: 351 K |
Hall symbol: -P2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 11.8526 (5) Å | Cell parameters from 2616 reflections |
b = 11.7192 (5) Å | θ = 2.6–22.7° |
c = 9.4164 (4) Å | µ = 0.10 mm−1 |
β = 113.405 (1)° | T = 298 K |
V = 1200.35 (9) Å3 | Plate, colourless |
Z = 4 | 0.30 × 0.10 × 0.04 mm |
Bruker SMART CCD area-detector diffractometer | 2109 independent reflections |
Radiation source: fine-focus sealed tube | 1295 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.106 |
ϕ and ω scans | θmax = 25.0°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −14→14 |
Tmin = 0.991, Tmax = 0.996 | k = −13→13 |
11206 measured reflections | l = −11→11 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.051 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.140 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.93 | w = 1/[σ2(Fo2) + (0.0849P)2] where P = (Fo2 + 2Fc2)/3 |
2109 reflections | (Δ/σ)max < 0.001 |
166 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
C15H11FO2 | V = 1200.35 (9) Å3 |
Mr = 242.24 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.8526 (5) Å | µ = 0.10 mm−1 |
b = 11.7192 (5) Å | T = 298 K |
c = 9.4164 (4) Å | 0.30 × 0.10 × 0.04 mm |
β = 113.405 (1)° |
Bruker SMART CCD area-detector diffractometer | 2109 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1295 reflections with I > 2σ(I) |
Tmin = 0.991, Tmax = 0.996 | Rint = 0.106 |
11206 measured reflections |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.140 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.93 | Δρmax = 0.25 e Å−3 |
2109 reflections | Δρmin = −0.19 e Å−3 |
166 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 | ||
C1 | 0.27135 (19) | 0.29172 (18) | 0.4883 (2) | 0.0742 (6) | |
C2 | 0.29882 (19) | 0.17926 (17) | 0.4841 (2) | 0.0804 (6) | |
H2 | 0.2565 | 0.1236 | 0.5136 | 0.096* | |
C3 | 0.38951 (19) | 0.14902 (16) | 0.4358 (2) | 0.0753 (6) | |
H3 | 0.4082 | 0.0722 | 0.4329 | 0.090* | |
C4 | 0.45487 (16) | 0.23125 (14) | 0.39078 (19) | 0.0600 (5) | |
C5 | 0.42305 (18) | 0.34513 (15) | 0.3965 (2) | 0.0694 (6) | |
H5 | 0.4645 | 0.4018 | 0.3673 | 0.083* | |
C6 | 0.33131 (19) | 0.37574 (17) | 0.4446 (2) | 0.0781 (6) | |
H6 | 0.3106 | 0.4520 | 0.4473 | 0.094* | |
C7 | 0.55320 (17) | 0.19568 (14) | 0.3396 (2) | 0.0634 (5) | |
C8 | 0.63154 (16) | 0.27122 (14) | 0.3102 (2) | 0.0627 (5) | |
H8 | 0.6220 | 0.3491 | 0.3208 | 0.075* | |
C9 | 0.72513 (17) | 0.23318 (15) | 0.2648 (2) | 0.0664 (5) | |
C10 | 0.81581 (16) | 0.30949 (15) | 0.2408 (2) | 0.0635 (5) | |
C11 | 0.8874 (2) | 0.26895 (18) | 0.1647 (2) | 0.0811 (6) | |
H11 | 0.8778 | 0.1941 | 0.1291 | 0.097* | |
C12 | 0.9732 (2) | 0.3393 (2) | 0.1414 (3) | 0.0959 (7) | |
H12 | 1.0190 | 0.3116 | 0.0883 | 0.115* | |
C13 | 0.99055 (19) | 0.4487 (2) | 0.1958 (3) | 0.0909 (7) | |
H13 | 1.0486 | 0.4952 | 0.1811 | 0.109* | |
C14 | 0.92093 (19) | 0.48972 (18) | 0.2731 (2) | 0.0901 (7) | |
H14 | 0.9329 | 0.5639 | 0.3112 | 0.108* | |
C15 | 0.83398 (19) | 0.42134 (17) | 0.2941 (2) | 0.0781 (6) | |
H15 | 0.7869 | 0.4505 | 0.3445 | 0.094* | |
F1 | 0.18286 (12) | 0.32154 (11) | 0.53824 (16) | 0.1081 (5) | |
O1 | 0.56461 (14) | 0.08669 (11) | 0.32400 (18) | 0.0923 (5) | |
O2 | 0.73642 (15) | 0.12538 (11) | 0.24314 (19) | 0.0931 (5) | |
H2A | 0.650 (2) | 0.087 (2) | 0.270 (3) | 0.140* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0767 (13) | 0.0819 (14) | 0.0718 (13) | −0.0013 (11) | 0.0378 (11) | 0.0039 (10) |
C2 | 0.0866 (15) | 0.0725 (14) | 0.0856 (15) | −0.0167 (11) | 0.0379 (12) | 0.0098 (11) |
C3 | 0.0870 (14) | 0.0523 (12) | 0.0853 (14) | −0.0058 (10) | 0.0329 (12) | 0.0056 (9) |
C4 | 0.0695 (11) | 0.0483 (10) | 0.0548 (11) | −0.0051 (8) | 0.0170 (9) | 0.0040 (8) |
C5 | 0.0849 (14) | 0.0483 (11) | 0.0837 (14) | −0.0008 (9) | 0.0428 (11) | 0.0040 (9) |
C6 | 0.0959 (15) | 0.0591 (12) | 0.0938 (15) | 0.0021 (10) | 0.0530 (13) | 0.0009 (10) |
C7 | 0.0750 (12) | 0.0442 (10) | 0.0667 (12) | 0.0046 (9) | 0.0235 (10) | 0.0011 (8) |
C8 | 0.0714 (12) | 0.0430 (10) | 0.0733 (12) | 0.0053 (8) | 0.0284 (10) | −0.0035 (8) |
C9 | 0.0777 (13) | 0.0523 (11) | 0.0640 (12) | 0.0101 (9) | 0.0227 (10) | −0.0037 (9) |
C10 | 0.0660 (12) | 0.0605 (12) | 0.0621 (11) | 0.0125 (9) | 0.0236 (9) | −0.0006 (9) |
C11 | 0.0863 (14) | 0.0781 (14) | 0.0830 (15) | 0.0148 (12) | 0.0380 (12) | −0.0110 (11) |
C12 | 0.0910 (16) | 0.114 (2) | 0.0986 (18) | 0.0141 (14) | 0.0549 (15) | −0.0037 (14) |
C13 | 0.0850 (15) | 0.0948 (17) | 0.0980 (17) | 0.0036 (13) | 0.0418 (14) | 0.0061 (13) |
C14 | 0.0968 (15) | 0.0715 (13) | 0.1198 (19) | −0.0030 (11) | 0.0617 (15) | −0.0042 (12) |
C15 | 0.0875 (14) | 0.0619 (12) | 0.1025 (16) | 0.0039 (10) | 0.0562 (13) | −0.0060 (11) |
F1 | 0.1104 (10) | 0.1162 (11) | 0.1240 (11) | −0.0001 (8) | 0.0742 (9) | 0.0031 (8) |
O1 | 0.1175 (12) | 0.0406 (8) | 0.1328 (13) | 0.0027 (7) | 0.0647 (10) | −0.0009 (7) |
O2 | 0.1094 (12) | 0.0522 (8) | 0.1332 (13) | 0.0088 (7) | 0.0645 (11) | −0.0136 (8) |
C1—F1 | 1.354 (2) | C8—H8 | 0.9300 |
C1—C2 | 1.362 (3) | C9—C10 | 1.483 (3) |
C1—C6 | 1.370 (3) | C10—C15 | 1.389 (3) |
C2—C3 | 1.369 (3) | C10—C11 | 1.393 (3) |
C2—H2 | 0.9300 | C11—C12 | 1.393 (3) |
C3—C4 | 1.404 (3) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | C12—C13 | 1.365 (3) |
C4—C5 | 1.394 (2) | C12—H12 | 0.9300 |
C4—C7 | 1.487 (3) | C13—C14 | 1.386 (3) |
C5—C6 | 1.381 (3) | C13—H13 | 0.9300 |
C5—H5 | 0.9300 | C14—C15 | 1.380 (3) |
C6—H6 | 0.9300 | C14—H14 | 0.9300 |
O1—C7 | 1.299 (2) | C15—H15 | 0.9300 |
O2—C9 | 1.295 (2) | O1—H2A | 1.30 (3) |
C7—C8 | 1.388 (2) | O2—H2A | 1.23 (3) |
C8—C9 | 1.410 (3) | ||
F1—C1—C2 | 119.14 (18) | O2—C9—C8 | 119.94 (18) |
F1—C1—C6 | 118.98 (18) | O2—C9—C10 | 115.95 (17) |
C2—C1—C6 | 121.88 (18) | C8—C9—C10 | 124.11 (16) |
C1—C2—C3 | 119.24 (18) | C15—C10—C11 | 117.95 (18) |
C1—C2—H2 | 120.4 | C15—C10—C9 | 122.10 (16) |
C3—C2—H2 | 120.4 | C11—C10—C9 | 119.94 (17) |
C2—C3—C4 | 121.53 (19) | C12—C11—C10 | 120.73 (19) |
C2—C3—H3 | 119.2 | C12—C11—H11 | 119.6 |
C4—C3—H3 | 119.2 | C10—C11—H11 | 119.6 |
C5—C4—C3 | 117.09 (18) | C13—C12—C11 | 120.5 (2) |
C5—C4—C7 | 122.68 (16) | C13—C12—H12 | 119.8 |
C3—C4—C7 | 120.22 (17) | C11—C12—H12 | 119.8 |
C6—C5—C4 | 121.45 (18) | C12—C13—C14 | 119.4 (2) |
C6—C5—H5 | 119.3 | C12—C13—H13 | 120.3 |
C4—C5—H5 | 119.3 | C14—C13—H13 | 120.3 |
C1—C6—C5 | 118.82 (18) | C15—C14—C13 | 120.5 (2) |
C1—C6—H6 | 120.6 | C15—C14—H14 | 119.7 |
C5—C6—H6 | 120.6 | C13—C14—H14 | 119.7 |
O1—C7—C8 | 119.79 (17) | C14—C15—C10 | 120.90 (18) |
O1—C7—C4 | 116.27 (16) | C14—C15—H15 | 119.5 |
C8—C7—C4 | 123.94 (15) | C10—C15—H15 | 119.5 |
C7—C8—C9 | 121.86 (16) | C7—O1—H2A | 99.8 (11) |
C7—C8—H8 | 119.1 | C9—O2—H2A | 100.1 (12) |
C9—C8—H8 | 119.1 | ||
F1—C1—C2—C3 | −179.05 (18) | C4—C7—C8—C9 | 178.70 (16) |
C6—C1—C2—C3 | 0.5 (3) | C7—C8—C9—O2 | 2.9 (3) |
C1—C2—C3—C4 | 0.0 (3) | C7—C8—C9—C10 | −176.33 (17) |
C2—C3—C4—C5 | −0.3 (3) | O2—C9—C10—C15 | −164.43 (17) |
C2—C3—C4—C7 | 179.74 (17) | C8—C9—C10—C15 | 14.9 (3) |
C3—C4—C5—C6 | 0.1 (3) | O2—C9—C10—C11 | 14.5 (3) |
C7—C4—C5—C6 | −179.97 (17) | C8—C9—C10—C11 | −166.16 (17) |
F1—C1—C6—C5 | 178.82 (17) | C15—C10—C11—C12 | −0.8 (3) |
C2—C1—C6—C5 | −0.7 (3) | C9—C10—C11—C12 | −179.86 (19) |
C4—C5—C6—C1 | 0.4 (3) | C10—C11—C12—C13 | 1.5 (3) |
C5—C4—C7—O1 | −172.91 (17) | C11—C12—C13—C14 | −0.8 (4) |
C3—C4—C7—O1 | 7.0 (2) | C12—C13—C14—C15 | −0.6 (4) |
C5—C4—C7—C8 | 7.8 (3) | C13—C14—C15—C10 | 1.2 (3) |
C3—C4—C7—C8 | −172.31 (18) | C11—C10—C15—C14 | −0.5 (3) |
O1—C7—C8—C9 | −0.6 (3) | C9—C10—C15—C14 | 178.53 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···O1 | 1.23 (3) | 1.30 (3) | 2.4827 (19) | 157 (2) |
Experimental details
Crystal data | |
Chemical formula | C15H11FO2 |
Mr | 242.24 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 11.8526 (5), 11.7192 (5), 9.4164 (4) |
β (°) | 113.405 (1) |
V (Å3) | 1200.35 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.30 × 0.10 × 0.04 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.991, 0.996 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11206, 2109, 1295 |
Rint | 0.106 |
(sin θ/λ)max (Å−1) | 0.594 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.140, 0.93 |
No. of reflections | 2109 |
No. of parameters | 166 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.25, −0.19 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···O1 | 1.23 (3) | 1.30 (3) | 2.4827 (19) | 157 (2) |
Acknowledgements
The authors are grateful to Hubei Normal University for financial support.
References
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1,3-Diketones posses a broad spectrum of useful and sometimes unique chemical properties, which make them extremely attractive as intermediates in syntheses (Hasegawa et al., 1997). They are also used in the chemistry of metallocomplexes (Ma et al., 1999; Yoshida et al., 2005; Jang et al., 2006). 1,3-Diketone structures have received increasing attention due to their enolic tautomeric forms and their ability to form strong intermolecular or intramolecular hydrogen bonds (Gilli et al., 2004). The crystal structure of the title compound (Fig. 1) is in the enol form, stabilized by an intramolecular hydrogen bond (Table 2). The bond lengths in the diketone fragment are either significantly shorter than normal single bonds or significantly longer than normal double bonds (Table 1). This shows that the structure displays a strong delocalization of double bonds in this region. The geometric data are in agreement with reported literature values (Bertolasi et al., 1991; Wang et al., 2006). The dihedral angle between the two aromatic rings is 22.30 (4)°.