Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807055171/hk2360sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807055171/hk2360Isup2.hkl |
CCDC reference: 672870
For the preparation of the title compound, 2-Hydroxy-4-trifluoromethylbenzoic acid (0.62 g, 2 mmol) and acetyl chloride (0.69 g, 5 mmol) were added in a flask (25 ml) and reacted in an oil bath (363 K) for 6 h. After cooling and filtering, crude compound, (I) was obtained. Crystals of (I) suitable for X-ray analysis were obtained by slow evaporation of an acetone solution (m.p. 480 K).
When the crystal structure was solved, the atoms F4, F5 and F6 were found to be disordered. During refinement with anisotropic thermal parameters, the occupancies of disordered F atoms were refined as F4 = 0.769 (11), F4' = 0.231 (11), F5 = 0.769 (11), F5' = 0.231 (11), F6 = 0.769 (11) and F6' = 0.231 (11). H atoms were positioned geometrically with O—H = 0.82 Å (for OH) and C—H = 0.93 and 0.96 Å for aromatic and methyl H atoms, respectively, and constrained to ride on their parent atoms, with Uiso(H) = xUeq(C,O), where x = 1.2 for aromatic H and x = 1.5 for all other H atoms.
Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell refinement: CAD-4 Software (Enraf–Nonius, 1989); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Siemens, 1996); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).
Fig. 1. The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. Hydrogen bond is shown as dashed lines. |
C10H7F3O4 | F(000) = 1008 |
Mr = 248.16 | Dx = 1.537 Mg m−3 |
Monoclinic, P21/n | Melting point: 480 K |
Hall symbol: -P 2yn | Mo Kα radiation, λ = 0.71073 Å |
a = 14.558 (3) Å | Cell parameters from 25 reflections |
b = 5.7520 (12) Å | θ = 9–12° |
c = 26.243 (5) Å | µ = 0.15 mm−1 |
β = 102.56 (3)° | T = 298 K |
V = 2144.9 (8) Å3 | Block, colorless |
Z = 8 | 0.40 × 0.10 × 0.10 mm |
Nonius CAD-4 diffractometer | 1674 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.044 |
Graphite monochromator | θmax = 26.0°, θmin = 1.5° |
ω/2θ scans | h = −17→17 |
Absorption correction: ψ scan (North et al., 1968) | k = 0→7 |
Tmin = 0.942, Tmax = 0.985 | l = 0→32 |
4356 measured reflections | 3 standard reflections every 120 min |
4184 independent reflections | intensity decay: none |
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)] = 0.070 | H-atom parameters constrained |
wR(F2) = 0.206 | w = 1/[σ2(Fo2) + (0.060P)2 + 1.5P] where P = (Fo2 + 2Fc2)/3 |
S = 1.02 | (Δ/σ)max < 0.001 |
4184 reflections | Δρmax = 0.21 e Å−3 |
335 parameters | Δρmin = −0.19 e Å−3 |
Primary atom site location: structure-invariant direct methods |
C10H7F3O4 | V = 2144.9 (8) Å3 |
Mr = 248.16 | Z = 8 |
Monoclinic, P21/n | Mo Kα radiation |
a = 14.558 (3) Å | µ = 0.15 mm−1 |
b = 5.7520 (12) Å | T = 298 K |
c = 26.243 (5) Å | 0.40 × 0.10 × 0.10 mm |
β = 102.56 (3)° |
Nonius CAD-4 diffractometer | 1674 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.044 |
Tmin = 0.942, Tmax = 0.985 | 3 standard reflections every 120 min |
4356 measured reflections | intensity decay: none |
4184 independent reflections |
R[F2 > 2σ(F2)] = 0.070 | 335 parameters |
wR(F2) = 0.206 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.21 e Å−3 |
4184 reflections | Δρmin = −0.19 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 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 | Occ. (<1) | |
O1 | 0.9999 (3) | −0.2926 (8) | 0.04713 (16) | 0.1174 (15) | |
H1A | 1.0431 | −0.3851 | 0.0565 | 0.176* | |
O2 | 0.9372 (3) | −0.4915 (8) | 0.10301 (17) | 0.1049 (13) | |
O3 | 0.8243 (4) | −0.1993 (9) | 0.17950 (19) | 0.1314 (18) | |
O4 | 0.7574 (2) | −0.3920 (7) | 0.10665 (16) | 0.0890 (11) | |
F1 | 0.5505 (3) | 0.1828 (7) | −0.02489 (16) | 0.1326 (14) | |
F2 | 0.6350 (2) | 0.4848 (6) | −0.00741 (15) | 0.1153 (12) | |
F3 | 0.5733 (2) | 0.3315 (6) | 0.05013 (14) | 0.1173 (12) | |
C1 | 0.9332 (4) | −0.3349 (10) | 0.0722 (2) | 0.0842 (16) | |
C2 | 0.8526 (4) | −0.1699 (9) | 0.0581 (2) | 0.0782 (15) | |
C3 | 0.7697 (3) | −0.2003 (9) | 0.0766 (2) | 0.0748 (14) | |
C4 | 0.6952 (4) | −0.0522 (9) | 0.0618 (2) | 0.0778 (15) | |
H4A | 0.6411 | −0.0746 | 0.0746 | 0.093* | |
C5 | 0.6992 (3) | 0.1293 (9) | 0.02827 (19) | 0.0695 (13) | |
C6 | 0.7798 (4) | 0.1678 (10) | 0.0096 (2) | 0.0853 (16) | |
H6A | 0.7840 | 0.2924 | −0.0124 | 0.102* | |
C7 | 0.8543 (4) | 0.0139 (10) | 0.0247 (2) | 0.0841 (16) | |
H7A | 0.9080 | 0.0361 | 0.0116 | 0.101* | |
C8 | 0.7885 (4) | −0.3724 (13) | 0.1602 (3) | 0.0923 (18) | |
C9 | 0.7701 (5) | −0.5929 (12) | 0.1860 (3) | 0.136 (3) | |
H9A | 0.7920 | −0.5783 | 0.2231 | 0.204* | |
H9B | 0.8028 | −0.7182 | 0.1735 | 0.204* | |
H9C | 0.7038 | −0.6245 | 0.1780 | 0.204* | |
C10 | 0.6158 (4) | 0.2812 (11) | 0.0115 (2) | 0.0836 (15) | |
O5 | 1.0815 (3) | −0.7810 (7) | 0.12631 (17) | 0.1112 (14) | |
H5A | 1.0396 | −0.6846 | 0.1175 | 0.167* | |
O6 | 1.1450 (3) | −0.5743 (7) | 0.07251 (16) | 0.1043 (13) | |
O7 | 1.2003 (3) | −0.9896 (9) | 0.23943 (17) | 0.1168 (16) | |
O8 | 1.1704 (2) | −1.1778 (6) | 0.16344 (13) | 0.0803 (10) | |
F4 | 1.5198 (4) | −1.2824 (17) | 0.2164 (3) | 0.135 (3) | 0.769 (11) |
F5 | 1.5193 (5) | −1.3647 (14) | 0.1369 (3) | 0.150 (3) | 0.769 (11) |
F6 | 1.5774 (4) | −1.0544 (13) | 0.1709 (4) | 0.141 (3) | 0.769 (11) |
F4' | 1.4989 (14) | −1.428 (4) | 0.1841 (11) | 0.126 (7) | 0.231 (11) |
F5' | 1.5587 (15) | −1.187 (5) | 0.1397 (8) | 0.114 (7) | 0.231 (11) |
F6' | 1.5503 (15) | −1.089 (4) | 0.2094 (9) | 0.122 (7) | 0.231 (11) |
C11 | 1.1474 (4) | −0.7344 (10) | 0.1058 (2) | 0.0805 (15) | |
C12 | 1.2380 (3) | −0.8623 (10) | 0.1208 (2) | 0.0761 (14) | |
C13 | 1.3175 (4) | −0.7777 (10) | 0.1073 (2) | 0.0881 (16) | |
H13A | 1.3125 | −0.6433 | 0.0871 | 0.106* | |
C14 | 1.4036 (4) | −0.8814 (10) | 0.1219 (2) | 0.0833 (16) | |
H14A | 1.4560 | −0.8176 | 0.1123 | 0.100* | |
C15 | 1.4113 (4) | −1.0808 (10) | 0.1510 (2) | 0.0814 (15) | |
C16 | 1.3343 (3) | −1.1774 (9) | 0.1659 (2) | 0.0803 (15) | |
H16A | 1.3406 | −1.3119 | 0.1860 | 0.096* | |
C17 | 1.2476 (4) | −1.0697 (9) | 0.15023 (19) | 0.0717 (14) | |
C18 | 1.1530 (4) | −1.1230 (12) | 0.2111 (2) | 0.0838 (16) | |
C19 | 1.0710 (4) | −1.2563 (13) | 0.2207 (2) | 0.117 (2) | |
H19A | 1.0596 | −1.2147 | 0.2542 | 0.175* | |
H19B | 1.0841 | −1.4198 | 0.2201 | 0.175* | |
H19C | 1.0165 | −1.2206 | 0.1940 | 0.175* | |
C20 | 1.5044 (4) | −1.2004 (14) | 0.1687 (3) | 0.0947 (18) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.098 (3) | 0.131 (4) | 0.135 (3) | 0.048 (3) | 0.049 (2) | 0.038 (3) |
O2 | 0.094 (3) | 0.093 (3) | 0.133 (3) | 0.025 (2) | 0.037 (2) | 0.027 (3) |
O3 | 0.174 (5) | 0.102 (4) | 0.113 (4) | −0.014 (4) | 0.021 (3) | 0.001 (3) |
O4 | 0.088 (2) | 0.073 (3) | 0.107 (3) | 0.005 (2) | 0.022 (2) | 0.018 (2) |
F1 | 0.105 (2) | 0.119 (3) | 0.155 (3) | 0.014 (2) | −0.012 (2) | −0.020 (3) |
F2 | 0.108 (2) | 0.093 (2) | 0.153 (3) | 0.024 (2) | 0.045 (2) | 0.035 (2) |
F3 | 0.111 (2) | 0.127 (3) | 0.128 (3) | 0.042 (2) | 0.057 (2) | 0.011 (2) |
C1 | 0.078 (3) | 0.081 (4) | 0.096 (4) | 0.019 (3) | 0.024 (3) | 0.006 (3) |
C2 | 0.082 (3) | 0.054 (3) | 0.103 (4) | 0.014 (3) | 0.029 (3) | 0.001 (3) |
C3 | 0.068 (3) | 0.066 (4) | 0.092 (4) | 0.009 (3) | 0.019 (3) | 0.000 (3) |
C4 | 0.081 (3) | 0.072 (4) | 0.089 (4) | 0.005 (3) | 0.037 (3) | 0.005 (3) |
C5 | 0.065 (3) | 0.067 (3) | 0.078 (3) | 0.010 (3) | 0.020 (3) | 0.001 (3) |
C6 | 0.088 (4) | 0.078 (4) | 0.096 (4) | 0.019 (3) | 0.034 (3) | 0.016 (3) |
C7 | 0.079 (3) | 0.083 (4) | 0.097 (4) | 0.011 (3) | 0.033 (3) | 0.006 (3) |
C8 | 0.084 (4) | 0.094 (4) | 0.098 (5) | 0.011 (3) | 0.016 (3) | 0.026 (4) |
C9 | 0.151 (6) | 0.120 (5) | 0.135 (5) | −0.004 (5) | 0.027 (4) | 0.047 (4) |
C10 | 0.085 (4) | 0.074 (4) | 0.095 (4) | 0.013 (3) | 0.025 (3) | 0.011 (3) |
O5 | 0.090 (3) | 0.104 (3) | 0.152 (3) | 0.027 (2) | 0.053 (2) | 0.039 (3) |
O6 | 0.111 (3) | 0.103 (3) | 0.112 (3) | 0.037 (2) | 0.051 (2) | 0.030 (3) |
O7 | 0.114 (3) | 0.140 (4) | 0.111 (3) | −0.026 (3) | 0.055 (3) | −0.048 (3) |
O8 | 0.078 (2) | 0.084 (3) | 0.083 (2) | 0.002 (2) | 0.0255 (18) | 0.002 (2) |
F4 | 0.097 (4) | 0.185 (7) | 0.125 (4) | 0.031 (4) | 0.027 (3) | 0.059 (4) |
F5 | 0.140 (5) | 0.136 (5) | 0.166 (5) | 0.060 (4) | 0.014 (4) | −0.038 (4) |
F6 | 0.087 (3) | 0.142 (5) | 0.194 (7) | −0.014 (3) | 0.034 (4) | 0.013 (5) |
F4' | 0.124 (10) | 0.109 (8) | 0.146 (12) | 0.006 (8) | 0.029 (8) | 0.009 (8) |
F5' | 0.100 (9) | 0.139 (12) | 0.111 (10) | 0.027 (8) | 0.038 (7) | 0.006 (8) |
F6' | 0.117 (10) | 0.129 (10) | 0.117 (10) | 0.013 (8) | 0.016 (7) | −0.017 (8) |
C11 | 0.085 (3) | 0.077 (4) | 0.086 (4) | 0.016 (3) | 0.032 (3) | 0.009 (3) |
C12 | 0.074 (3) | 0.081 (4) | 0.080 (3) | 0.011 (3) | 0.031 (3) | 0.004 (3) |
C13 | 0.091 (4) | 0.080 (4) | 0.100 (4) | 0.023 (3) | 0.036 (3) | 0.021 (3) |
C14 | 0.078 (3) | 0.085 (4) | 0.095 (4) | 0.002 (3) | 0.037 (3) | 0.011 (3) |
C15 | 0.082 (4) | 0.080 (4) | 0.089 (4) | 0.020 (3) | 0.035 (3) | 0.010 (3) |
C16 | 0.078 (3) | 0.074 (4) | 0.094 (4) | 0.011 (3) | 0.029 (3) | 0.007 (3) |
C17 | 0.076 (3) | 0.073 (4) | 0.070 (3) | 0.000 (3) | 0.023 (3) | 0.001 (3) |
C18 | 0.078 (3) | 0.094 (4) | 0.084 (4) | 0.015 (3) | 0.029 (3) | −0.006 (3) |
C19 | 0.106 (4) | 0.138 (5) | 0.120 (5) | −0.015 (4) | 0.053 (4) | 0.002 (4) |
C20 | 0.077 (4) | 0.113 (5) | 0.097 (4) | 0.003 (4) | 0.023 (3) | 0.009 (4) |
O1—C1 | 1.309 (6) | O6—C11 | 1.264 (6) |
O1—H1A | 0.8200 | O7—C18 | 1.181 (6) |
O2—C1 | 1.203 (5) | O8—C18 | 1.364 (6) |
O3—C8 | 1.185 (7) | O8—C17 | 1.393 (5) |
O4—C8 | 1.385 (7) | F4—C20 | 1.310 (8) |
O4—C3 | 1.389 (6) | F5—C20 | 1.310 (9) |
F1—C10 | 1.320 (6) | F6—C20 | 1.347 (9) |
F2—C10 | 1.326 (6) | F4'—C20 | 1.38 (2) |
F3—C10 | 1.328 (6) | F5'—C20 | 1.213 (19) |
C1—C2 | 1.492 (7) | F6'—C20 | 1.298 (19) |
C2—C7 | 1.377 (7) | C11—C12 | 1.487 (7) |
C2—C3 | 1.407 (6) | C12—C13 | 1.371 (7) |
C3—C4 | 1.368 (6) | C12—C17 | 1.412 (7) |
C4—C5 | 1.376 (6) | C13—C14 | 1.365 (7) |
C4—H4A | 0.9300 | C13—H13A | 0.9300 |
C5—C6 | 1.385 (6) | C14—C15 | 1.369 (7) |
C5—C10 | 1.483 (7) | C14—H14A | 0.9300 |
C6—C7 | 1.389 (7) | C15—C16 | 1.381 (6) |
C6—H6A | 0.9300 | C15—C20 | 1.501 (8) |
C7—H7A | 0.9300 | C16—C17 | 1.386 (6) |
C8—C9 | 1.489 (8) | C16—H16A | 0.9300 |
C9—H9A | 0.9600 | C18—C19 | 1.486 (8) |
C9—H9B | 0.9600 | C19—H19A | 0.9600 |
C9—H9C | 0.9600 | C19—H19B | 0.9600 |
O5—C11 | 1.227 (5) | C19—H19C | 0.9600 |
O5—H5A | 0.8200 | ||
C1—O1—H1A | 109.5 | C14—C13—C12 | 123.1 (5) |
C8—O4—C3 | 117.2 (5) | C14—C13—H13A | 118.4 |
O2—C1—O1 | 123.0 (5) | C12—C13—H13A | 118.4 |
O2—C1—C2 | 124.3 (5) | C13—C14—C15 | 118.8 (5) |
O1—C1—C2 | 112.7 (5) | C13—C14—H14A | 120.6 |
C7—C2—C3 | 116.8 (5) | C15—C14—H14A | 120.6 |
C7—C2—C1 | 121.7 (5) | C14—C15—C16 | 121.4 (5) |
C3—C2—C1 | 121.5 (5) | C14—C15—C20 | 121.1 (5) |
C4—C3—O4 | 117.6 (5) | C16—C15—C20 | 117.5 (5) |
C4—C3—C2 | 120.8 (5) | C15—C16—C17 | 118.6 (5) |
O4—C3—C2 | 121.4 (5) | C15—C16—H16A | 120.7 |
C3—C4—C5 | 120.9 (5) | C17—C16—H16A | 120.7 |
C3—C4—H4A | 119.6 | C16—C17—O8 | 117.4 (5) |
C5—C4—H4A | 119.6 | C16—C17—C12 | 121.0 (5) |
C4—C5—C6 | 120.4 (5) | O8—C17—C12 | 121.6 (5) |
C4—C5—C10 | 119.4 (5) | O7—C18—O8 | 121.9 (5) |
C6—C5—C10 | 120.2 (5) | O7—C18—C19 | 127.4 (6) |
C5—C6—C7 | 117.8 (5) | O8—C18—C19 | 110.6 (6) |
C5—C6—H6A | 121.1 | C18—C19—H19A | 109.5 |
C7—C6—H6A | 121.1 | C18—C19—H19B | 109.5 |
C2—C7—C6 | 123.4 (5) | H19A—C19—H19B | 109.5 |
C2—C7—H7A | 118.3 | C18—C19—H19C | 109.5 |
C6—C7—H7A | 118.3 | H19A—C19—H19C | 109.5 |
O3—C8—O4 | 121.2 (6) | H19B—C19—H19C | 109.5 |
O3—C8—C9 | 128.9 (7) | F5'—C20—F6' | 101.2 (16) |
O4—C8—C9 | 109.9 (6) | F5'—C20—F5 | 54.9 (13) |
C8—C9—H9A | 109.5 | F6'—C20—F5 | 138.8 (10) |
C8—C9—H9B | 109.5 | F5'—C20—F4 | 128.5 (11) |
H9A—C9—H9B | 109.5 | F6'—C20—F4 | 56.2 (12) |
C8—C9—H9C | 109.5 | F5—C20—F4 | 109.4 (8) |
H9A—C9—H9C | 109.5 | F5'—C20—F6 | 51.0 (13) |
H9B—C9—H9C | 109.5 | F6'—C20—F6 | 52.9 (11) |
F1—C10—F2 | 106.6 (5) | F5—C20—F6 | 103.7 (7) |
F1—C10—F3 | 105.3 (5) | F4—C20—F6 | 102.4 (7) |
F2—C10—F3 | 105.3 (5) | F5'—C20—F4' | 109.3 (16) |
F1—C10—C5 | 112.1 (5) | F6'—C20—F4' | 106.4 (16) |
F2—C10—C5 | 113.9 (5) | F5—C20—F4' | 61.9 (11) |
F3—C10—C5 | 112.9 (5) | F4—C20—F4' | 52.2 (10) |
C11—O5—H5A | 109.5 | F6—C20—F4' | 132.6 (10) |
C18—O8—C17 | 116.4 (4) | F5'—C20—C15 | 116.4 (11) |
O5—C11—O6 | 123.7 (5) | F6'—C20—C15 | 107.3 (11) |
O5—C11—C12 | 120.6 (5) | F5—C20—C15 | 113.4 (6) |
O6—C11—C12 | 115.6 (5) | F4—C20—C15 | 114.6 (6) |
C13—C12—C17 | 116.9 (5) | F6—C20—C15 | 112.2 (6) |
C13—C12—C11 | 120.4 (5) | F4'—C20—C15 | 114.9 (10) |
C17—C12—C11 | 122.6 (5) | ||
O2—C1—C2—C7 | 176.4 (6) | O6—C11—C12—C17 | −168.8 (5) |
O1—C1—C2—C7 | −4.1 (8) | C17—C12—C13—C14 | −1.5 (8) |
O2—C1—C2—C3 | −6.2 (9) | C11—C12—C13—C14 | 176.9 (5) |
O1—C1—C2—C3 | 173.3 (5) | C12—C13—C14—C15 | 0.8 (9) |
C8—O4—C3—C4 | −96.5 (6) | C13—C14—C15—C16 | −0.4 (8) |
C8—O4—C3—C2 | 89.1 (6) | C13—C14—C15—C20 | −179.3 (6) |
C7—C2—C3—C4 | −0.1 (8) | C14—C15—C16—C17 | 0.8 (8) |
C1—C2—C3—C4 | −177.7 (5) | C20—C15—C16—C17 | 179.7 (5) |
C7—C2—C3—O4 | 174.1 (5) | C15—C16—C17—O8 | 176.7 (5) |
C1—C2—C3—O4 | −3.4 (8) | C15—C16—C17—C12 | −1.6 (8) |
O4—C3—C4—C5 | −174.1 (4) | C18—O8—C17—C16 | 87.5 (6) |
C2—C3—C4—C5 | 0.3 (8) | C18—O8—C17—C12 | −94.3 (6) |
C3—C4—C5—C6 | −1.1 (8) | C13—C12—C17—C16 | 1.9 (7) |
C3—C4—C5—C10 | 177.8 (5) | C11—C12—C17—C16 | −176.5 (5) |
C4—C5—C6—C7 | 1.8 (8) | C13—C12—C17—O8 | −176.3 (5) |
C10—C5—C6—C7 | −177.1 (5) | C11—C12—C17—O8 | 5.4 (8) |
C3—C2—C7—C6 | 0.8 (8) | C17—O8—C18—O7 | 0.7 (8) |
C1—C2—C7—C6 | 178.3 (5) | C17—O8—C18—C19 | −178.1 (5) |
C5—C6—C7—C2 | −1.6 (8) | C14—C15—C20—F5' | −33 (2) |
C3—O4—C8—O3 | −0.3 (8) | C16—C15—C20—F5' | 148.4 (18) |
C3—O4—C8—C9 | −179.8 (5) | C14—C15—C20—F6' | 79.8 (16) |
C4—C5—C10—F1 | −77.8 (7) | C16—C15—C20—F6' | −99.1 (16) |
C6—C5—C10—F1 | 101.1 (6) | C14—C15—C20—F5 | −93.6 (9) |
C4—C5—C10—F2 | 161.1 (5) | C16—C15—C20—F5 | 87.5 (9) |
C6—C5—C10—F2 | −20.0 (8) | C14—C15—C20—F4 | 139.9 (8) |
C4—C5—C10—F3 | 41.0 (7) | C16—C15—C20—F4 | −39.1 (10) |
C6—C5—C10—F3 | −140.1 (5) | C14—C15—C20—F6 | 23.6 (10) |
O5—C11—C12—C13 | −165.1 (5) | C16—C15—C20—F6 | −155.4 (7) |
O6—C11—C12—C13 | 12.9 (8) | C14—C15—C20—F4' | −162.2 (14) |
O5—C11—C12—C17 | 13.2 (9) | C16—C15—C20—F4' | 18.9 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···O6 | 0.82 | 1.81 | 2.631 (7) | 174 |
O5—H5A···O2 | 0.82 | 1.83 | 2.646 (7) | 172 |
C7—H7A···O1 | 0.93 | 2.39 | 2.721 (7) | 101 |
C13—H13A···F2i | 0.93 | 2.55 | 3.313 (7) | 140 |
Symmetry code: (i) −x+2, −y, −z. |
Experimental details
Crystal data | |
Chemical formula | C10H7F3O4 |
Mr | 248.16 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 298 |
a, b, c (Å) | 14.558 (3), 5.7520 (12), 26.243 (5) |
β (°) | 102.56 (3) |
V (Å3) | 2144.9 (8) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.15 |
Crystal size (mm) | 0.40 × 0.10 × 0.10 |
Data collection | |
Diffractometer | Nonius CAD-4 diffractometer |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.942, 0.985 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4356, 4184, 1674 |
Rint | 0.044 |
(sin θ/λ)max (Å−1) | 0.616 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.070, 0.206, 1.02 |
No. of reflections | 4184 |
No. of parameters | 335 |
No. of restraints | ? |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.21, −0.19 |
Computer programs: CAD-4 Software (Enraf–Nonius, 1989), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Siemens, 1996).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···O6 | 0.82 | 1.81 | 2.631 (7) | 174 |
O5—H5A···O2 | 0.82 | 1.83 | 2.646 (7) | 172 |
C7—H7A···O1 | 0.93 | 2.39 | 2.721 (7) | 101 |
C13—H13A···F2i | 0.93 | 2.55 | 3.313 (7) | 140 |
Symmetry code: (i) −x+2, −y, −z. |
Benzoic acid derivatives represent an interesting class of compounds possessing broad spectrum biological activities (Nakagawa et al., 1996; Wang et al., 1999). These compounds are known to exhibit diverse biological effects, such as insecticidal and fungicidal activities (Wang et al., 1999). We report herein the crystal structure of the title compound, (I).
The asymmetric unit of the title compound, (I), contains two independent molecules, in which the bond lengths and angles are within normal ranges (Allen et al., 1987).
When the crystal structure was solved, the atoms F4, F5 and F6 were found to be disordered.
The intramolecular C—H···O hydrogen bond (Table 1) results in the formation of the planar five-membered ring; A (O1/C1/C2/C7/H7A), which is oriented with respect to ring B (C2—C7) at a dihedral angle of 4.24 (3)°.
In the crystal structure, C—H···F and O—H···O hydrogen bonds (Table 1) link the molecules, in which they may be effective in the stabilization of the structure.