organic compounds
3-Fluoro-4-(4-hydroxyphenoxy)benzonitrile
aHangzhou Huadong Medicine Group Biotechnology Institute Co. Ltd, Hangzhou 310015, People's Republic of China, and bState Key Laboratory Breeding Base of Green Chemistry–Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
*Correspondence e-mail: zhangjixu123@163.com
The title compound, C13H8FNO2, was synthesized from 3,4-difluorobenzonitrile and hydroquinone. The dihedral angle between the two aromatic rings is 70.9 (2)°. In the molecules are linked by O—H⋯N hydrogen bonds, forming zigzag chains.
Related literature
For the herbicidal actvity of hydroquinone derivatives, see: Bao et al. (2007); Liu (2002). For related structures, see: Sørensen et al. (2009); Luo et al. (2009); Zhang et al. (2009).
Experimental
Crystal data
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Refinement
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Data collection: PROCESS-AUTO (Rigaku, 2006); cell PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia,1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536810024360/im2202sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810024360/im2202Isup2.hkl
A DMSO (10 ml) solution of hydroquinone (0.0012 mol) and NaOH (0.0024 mol) was stirred at room temperature for 5 h. Then the mixture was heated to 80°C and 3,4-difluorobenzonitrile (0.001 mol) was added dropwise and stirred for 10 h. Then the mixture was washed with water (30 ml) and extracted with ethyl acetate (three times). The organic solvent was removed under reduced pressure and the resulting crude product was purified by silica gel
(pentane: ethyl acetate mixtures, yield 86%). Single crystals were obtained by slow evaporation of ethyl acetate at room temperature.In the absence of significant
effects, Friedel pairs were averaged. H atoms were placed in calculated positions with C—H = 0.98 Å (sp), C—H = 0.97 Å (sp2), C—H = 0.93 Å (aromatic). All H atoms were included in the final cycles of using a riding model, with Uiso(H)=1.2Ueq of the respective carrier atoms.Data collection: PROCESS-AUTO (Rigaku, 2006); cell
PROCESS-AUTO (Rigaku, 2006); data reduction: CrystalStructure (Rigaku/MSC, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia,1997); software used to prepare material for publication: WinGX (Farrugia, 1999).C13H8FNO2 | F(000) = 472 |
Mr = 229.20 | Dx = 1.359 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 6842 reflections |
a = 6.1932 (4) Å | θ = 3.0–27.4° |
b = 8.8109 (5) Å | µ = 0.10 mm−1 |
c = 20.5269 (12) Å | T = 295 K |
V = 1120.11 (12) Å3 | Chunk, colorless |
Z = 4 | 0.39 × 0.31 × 0.22 mm |
Rigaku R-AXIS RAPID diffractometer | 1498 independent reflections |
Radiation source: rolling anode | 928 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
Detector resolution: 10.00 pixels mm-1 | θmax = 27.4°, θmin = 3.1° |
ω scans | h = −8→8 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −11→11 |
Tmin = 0.959, Tmax = 0.976 | l = −26→26 |
10999 measured reflections |
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)] = 0.037 | H-atom parameters constrained |
wR(F2) = 0.117 | w = 1/[σ2(Fo2) + (0.0487P)2 + 0.2503P] where P = (Fo2 + 2Fc2)/3 |
S = 1.01 | (Δ/σ)max < 0.001 |
1498 reflections | Δρmax = 0.17 e Å−3 |
156 parameters | Δρmin = −0.15 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: 0.031 (5) |
C13H8FNO2 | V = 1120.11 (12) Å3 |
Mr = 229.20 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 6.1932 (4) Å | µ = 0.10 mm−1 |
b = 8.8109 (5) Å | T = 295 K |
c = 20.5269 (12) Å | 0.39 × 0.31 × 0.22 mm |
Rigaku R-AXIS RAPID diffractometer | 1498 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 928 reflections with I > 2σ(I) |
Tmin = 0.959, Tmax = 0.976 | Rint = 0.032 |
10999 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 0 restraints |
wR(F2) = 0.117 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.17 e Å−3 |
1498 reflections | Δρmin = −0.15 e Å−3 |
156 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | 0.8260 (4) | 0.8262 (3) | 0.91021 (10) | 0.0842 (7) | |
F1 | 0.7477 (4) | 0.5751 (2) | 0.84401 (10) | 0.0994 (7) | |
C3 | 0.2965 (5) | 0.7967 (4) | 0.78841 (13) | 0.0647 (8) | |
C13 | 0.1155 (6) | 0.7849 (4) | 0.74589 (16) | 0.0797 (10) | |
C7 | 0.8277 (5) | 0.9255 (4) | 0.96363 (13) | 0.0662 (8) | |
O2 | 0.8846 (4) | 1.2010 (3) | 1.12504 (11) | 0.0890 (8) | |
H201 | 0.7775 | 1.1944 | 1.1484 | 0.134* | |
C4 | 0.3341 (5) | 0.9302 (4) | 0.82157 (14) | 0.0706 (8) | |
H4 | 0.2411 | 1.0120 | 0.8158 | 0.085* | |
C10 | 0.8605 (5) | 1.1076 (3) | 1.07184 (13) | 0.0647 (8) | |
C1 | 0.6082 (5) | 0.6918 (4) | 0.83712 (14) | 0.0689 (8) | |
C8 | 0.6707 (5) | 0.9204 (4) | 1.01045 (14) | 0.0720 (8) | |
H8 | 0.5543 | 0.8546 | 1.0059 | 0.086* | |
C6 | 0.6460 (5) | 0.8233 (4) | 0.87182 (13) | 0.0648 (8) | |
C2 | 0.4369 (5) | 0.6748 (4) | 0.79642 (14) | 0.0712 (8) | |
H2 | 0.4141 | 0.5839 | 0.7744 | 0.085* | |
C9 | 0.6853 (5) | 1.0130 (4) | 1.06440 (14) | 0.0718 (9) | |
H9 | 0.5769 | 1.0115 | 1.0958 | 0.086* | |
C11 | 1.0188 (6) | 1.1111 (4) | 1.02514 (15) | 0.0789 (10) | |
H11 | 1.1376 | 1.1745 | 1.0301 | 0.095* | |
C12 | 1.0011 (6) | 1.0202 (4) | 0.97087 (15) | 0.0805 (10) | |
H12 | 1.1076 | 1.0231 | 0.9390 | 0.097* | |
C5 | 0.5080 (6) | 0.9438 (4) | 0.86314 (14) | 0.0710 (9) | |
H5 | 0.5319 | 1.0344 | 0.8853 | 0.085* | |
N1 | −0.0310 (6) | 0.7800 (4) | 0.71268 (15) | 0.1078 (12) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0678 (14) | 0.1042 (16) | 0.0805 (13) | 0.0258 (14) | −0.0173 (12) | −0.0286 (13) |
F1 | 0.0986 (16) | 0.0867 (12) | 0.1129 (14) | 0.0398 (13) | −0.0214 (12) | −0.0218 (12) |
C3 | 0.0581 (18) | 0.083 (2) | 0.0534 (14) | −0.0009 (17) | −0.0006 (13) | 0.0069 (16) |
C13 | 0.076 (2) | 0.092 (2) | 0.0710 (19) | −0.009 (2) | −0.0057 (19) | 0.0122 (18) |
C7 | 0.0610 (18) | 0.0736 (17) | 0.0642 (15) | 0.0089 (17) | −0.0031 (16) | −0.0066 (15) |
O2 | 0.0893 (19) | 0.0916 (15) | 0.0861 (15) | −0.0181 (15) | 0.0185 (13) | −0.0244 (14) |
C4 | 0.069 (2) | 0.0754 (19) | 0.0671 (16) | 0.0133 (18) | −0.0032 (17) | 0.0033 (16) |
C10 | 0.066 (2) | 0.0648 (17) | 0.0632 (15) | −0.0042 (16) | 0.0052 (16) | −0.0025 (14) |
C1 | 0.068 (2) | 0.0692 (18) | 0.0697 (17) | 0.0159 (17) | 0.0009 (16) | −0.0051 (17) |
C8 | 0.065 (2) | 0.0776 (18) | 0.0733 (17) | −0.0135 (18) | 0.0016 (17) | −0.0006 (17) |
C6 | 0.0592 (19) | 0.0778 (18) | 0.0572 (15) | 0.0090 (17) | 0.0002 (14) | −0.0069 (15) |
C2 | 0.072 (2) | 0.0751 (19) | 0.0665 (17) | 0.0011 (18) | −0.0016 (16) | −0.0044 (17) |
C9 | 0.068 (2) | 0.084 (2) | 0.0632 (16) | −0.0165 (19) | 0.0125 (16) | −0.0001 (16) |
C11 | 0.063 (2) | 0.094 (2) | 0.0801 (19) | −0.0177 (19) | 0.0167 (18) | −0.0068 (19) |
C12 | 0.066 (2) | 0.107 (2) | 0.0689 (17) | −0.004 (2) | 0.0148 (18) | −0.0094 (19) |
C5 | 0.072 (2) | 0.0706 (18) | 0.0706 (17) | 0.0124 (17) | −0.0058 (17) | −0.0094 (17) |
N1 | 0.094 (2) | 0.128 (3) | 0.101 (2) | −0.030 (2) | −0.031 (2) | 0.034 (2) |
O1—C6 | 1.365 (4) | C10—C11 | 1.371 (4) |
O1—C7 | 1.403 (4) | C10—C9 | 1.377 (4) |
F1—C1 | 1.350 (3) | C1—C2 | 1.359 (4) |
C3—C4 | 1.379 (5) | C1—C6 | 1.380 (4) |
C3—C2 | 1.391 (4) | C8—C9 | 1.378 (4) |
C3—C13 | 1.425 (4) | C8—H8 | 0.9300 |
C13—N1 | 1.135 (4) | C6—C5 | 1.375 (4) |
C7—C12 | 1.368 (5) | C2—H2 | 0.9300 |
C7—C8 | 1.368 (4) | C9—H9 | 0.9300 |
O2—C10 | 1.375 (3) | C11—C12 | 1.376 (4) |
O2—H201 | 0.8200 | C11—H11 | 0.9300 |
C4—C5 | 1.379 (4) | C12—H12 | 0.9300 |
C4—H4 | 0.9300 | C5—H5 | 0.9300 |
C6—O1—C7 | 118.0 (2) | C9—C8—H8 | 120.0 |
C4—C3—C2 | 119.7 (3) | O1—C6—C5 | 124.6 (3) |
C4—C3—C13 | 119.8 (3) | O1—C6—C1 | 116.9 (3) |
C2—C3—C13 | 120.5 (3) | C5—C6—C1 | 118.4 (3) |
N1—C13—C3 | 177.8 (5) | C1—C2—C3 | 118.4 (3) |
C12—C7—C8 | 120.1 (3) | C1—C2—H2 | 120.8 |
C12—C7—O1 | 118.1 (3) | C3—C2—H2 | 120.8 |
C8—C7—O1 | 121.6 (3) | C10—C9—C8 | 119.9 (3) |
C10—O2—H201 | 109.5 | C10—C9—H9 | 120.0 |
C5—C4—C3 | 120.7 (3) | C8—C9—H9 | 120.0 |
C5—C4—H4 | 119.6 | C10—C11—C12 | 119.7 (3) |
C3—C4—H4 | 119.6 | C10—C11—H11 | 120.1 |
C11—C10—O2 | 117.7 (3) | C12—C11—H11 | 120.1 |
C11—C10—C9 | 119.9 (3) | C7—C12—C11 | 120.3 (3) |
O2—C10—C9 | 122.4 (3) | C7—C12—H12 | 119.8 |
F1—C1—C2 | 118.7 (3) | C11—C12—H12 | 119.8 |
F1—C1—C6 | 118.5 (3) | C6—C5—C4 | 119.9 (3) |
C2—C1—C6 | 122.8 (3) | C6—C5—H5 | 120.0 |
C7—C8—C9 | 119.9 (3) | C4—C5—H5 | 120.0 |
C7—C8—H8 | 120.0 | ||
C6—O1—C7—C12 | −129.3 (3) | C4—C3—C2—C1 | 0.0 (5) |
C6—O1—C7—C8 | 56.0 (4) | C13—C3—C2—C1 | 179.5 (3) |
C2—C3—C4—C5 | −0.7 (5) | C11—C10—C9—C8 | 0.8 (5) |
C13—C3—C4—C5 | 179.8 (3) | O2—C10—C9—C8 | −179.2 (3) |
C12—C7—C8—C9 | 1.2 (5) | C7—C8—C9—C10 | −1.6 (5) |
O1—C7—C8—C9 | 175.8 (3) | O2—C10—C11—C12 | −179.7 (3) |
C7—O1—C6—C5 | 27.9 (4) | C9—C10—C11—C12 | 0.3 (5) |
C7—O1—C6—C1 | −155.4 (3) | C8—C7—C12—C11 | −0.1 (5) |
F1—C1—C6—O1 | 1.0 (4) | O1—C7—C12—C11 | −174.8 (3) |
C2—C1—C6—O1 | −179.0 (3) | C10—C11—C12—C7 | −0.7 (5) |
F1—C1—C6—C5 | 177.9 (3) | O1—C6—C5—C4 | 178.0 (3) |
C2—C1—C6—C5 | −2.1 (5) | C1—C6—C5—C4 | 1.4 (5) |
F1—C1—C2—C3 | −178.6 (3) | C3—C4—C5—C6 | 0.0 (5) |
C6—C1—C2—C3 | 1.4 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H201···N1i | 0.82 | 2.03 | 2.839 (4) | 168 |
Symmetry code: (i) −x+1/2, −y+2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C13H8FNO2 |
Mr | 229.20 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 295 |
a, b, c (Å) | 6.1932 (4), 8.8109 (5), 20.5269 (12) |
V (Å3) | 1120.11 (12) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.39 × 0.31 × 0.22 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID diffractometer |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.959, 0.976 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10999, 1498, 928 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.648 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.117, 1.01 |
No. of reflections | 1498 |
No. of parameters | 156 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.17, −0.15 |
Computer programs: PROCESS-AUTO (Rigaku, 2006), CrystalStructure (Rigaku/MSC, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia,1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H201···N1i | 0.82 | 2.03 | 2.839 (4) | 168 |
Symmetry code: (i) −x+1/2, −y+2, z+1/2. |
Acknowledgements
The authors are grateful to Mr Jianming Gu for the
analysis.References
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Hydroquinone derivatives are important intermediates of herbicide synthesis and have therefore received growing attention recently (Liu, 2002; Bao et al., 2007). Several hydroquinone derivatives were synthesized and investigated by X-ray diffraction in our laboratory. 4-(4-Cyano-2-fluoro-phenoxy)-phenol was obtained reacting hydroquinone and 3,4-difluorobenzonitrile and it's molecular structure is shown in Fig.1.
As it is expected substituents at both aromatic rings are coplanar with repect to the aromatic planes. The dihedral angle between the two planes is 70.66°. The molecule is bent with a C6—O1—C7 angle of 118.0 (2)°. The crystal structure is determined by intermolecular O—H···N interactions. The resulting supramolecular chains of the title compound showing H-bridge interactions is shown in Fig.2.