organic compounds
(2E)-3-(4-Cyanophenyl)-1-(4,4′′-difluoro-5′-methoxy-1,1′:3′,1′′-terphenyl-4′-yl)prop-2-en-1-one
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri 574 199, India, and cDepartment of Chemistry, P.A. College of Engineering, Nadupadavu, Mangalore 574 153, India
*Correspondence e-mail: hkfun@usm.my
In the title compound, C29H19F2NO2, the central benzene ring forms a dihedral angle of 56.92 (12)° with the cyanobenzene ring and dihedral angles of 40.91 (12) and 44.76 (12)° with the two fluorobenzene rings. In the crystal, C—H⋯O and C—H⋯F hydrogen bonds link the molecules into sheets lying parallel to the ab plane. The crystal packing also features C—H⋯π interactions involving the central benzene ring.
Related literature
For background to terphenyls, see: Fun, Hemamalini et al. (2011); Fun, Shahani et al. (2011); Fun et al. (2012); Betz et al. (2011). For a related structure, see: Fun, Chia et al. (2011). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536812023124/hb6802sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812023124/hb6802Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812023124/hb6802Isup3.cml
To a mixture of 1-(4,4''-difluoro-5'-methoxy-1,1':3',1''-terphenyl-4'-yl) ethanone (0.338 g, 0.001 mol) and 4-cyanobenzaldehyde (0.131 g, 0.001 mol) in 30 ml e thanol, 0.5 ml of 10% sodium hydroxide solution was added and stirred at 5–10°C for 3 h. The precipitate formed was collected by filtration and purified by recrystallization from ethanol. Colourless plates were grown from acetone solution by slow evaporation method and yield of the compound was 78%. M.p.: 450 K.
All the H atoms were positioned geometrically and were refined with a riding model with Uiso(H) = 1.2 or 1.5 Ueq(C) [C–H = 0.95 or 0.98 Å]. A rotating group model was applied to the methyl group. In the final
nine outliners were omitted, -6 10 5, 0 0 1, -6 1 0, -5 10 7, -5 11 5, -2 11 8, -6 2 0, -4 9 10 and -2 9 11.Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).C29H19F2NO2 | Z = 2 |
Mr = 451.45 | F(000) = 468 |
Triclinic, P1 | Dx = 1.365 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.9656 (2) Å | Cell parameters from 6297 reflections |
b = 11.2404 (3) Å | θ = 2.2–30.1° |
c = 14.6014 (3) Å | µ = 0.10 mm−1 |
α = 96.108 (1)° | T = 100 K |
β = 90.415 (1)° | Plate, colourless |
γ = 104.764 (1)° | 0.34 × 0.20 × 0.12 mm |
V = 1098.51 (5) Å3 |
Bruker APEXII CCD diffractometer | 3828 independent reflections |
Radiation source: fine-focus sealed tube | 2982 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.036 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −8→8 |
Tmin = 0.968, Tmax = 0.989 | k = −13→13 |
17054 measured reflections | l = −17→17 |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.112 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0128P)2 + 2.0889P] where P = (Fo2 + 2Fc2)/3 |
3828 reflections | (Δ/σ)max < 0.001 |
308 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
C29H19F2NO2 | γ = 104.764 (1)° |
Mr = 451.45 | V = 1098.51 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.9656 (2) Å | Mo Kα radiation |
b = 11.2404 (3) Å | µ = 0.10 mm−1 |
c = 14.6014 (3) Å | T = 100 K |
α = 96.108 (1)° | 0.34 × 0.20 × 0.12 mm |
β = 90.415 (1)° |
Bruker APEXII CCD diffractometer | 3828 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 2982 reflections with I > 2σ(I) |
Tmin = 0.968, Tmax = 0.989 | Rint = 0.036 |
17054 measured reflections |
R[F2 > 2σ(F2)] = 0.050 | 0 restraints |
wR(F2) = 0.112 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.31 e Å−3 |
3828 reflections | Δρmin = −0.23 e Å−3 |
308 parameters |
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K. |
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 | ||
F1 | −0.3094 (2) | 1.07639 (17) | 0.96874 (12) | 0.0383 (5) | |
F2 | 0.1740 (2) | 0.29331 (13) | 0.46224 (11) | 0.0282 (4) | |
O1 | 0.2862 (3) | 1.22148 (17) | 0.70626 (13) | 0.0252 (4) | |
O2 | 0.6812 (3) | 1.09304 (16) | 0.60777 (12) | 0.0209 (4) | |
N1 | 1.5517 (4) | 1.7077 (3) | 0.98443 (19) | 0.0430 (7) | |
C1 | −0.1786 (4) | 1.0421 (3) | 0.90947 (19) | 0.0256 (6) | |
C2 | 0.0215 (4) | 1.0968 (3) | 0.92571 (19) | 0.0235 (6) | |
H2A | 0.0668 | 1.1560 | 0.9778 | 0.028* | |
C3 | 0.1545 (4) | 1.0639 (2) | 0.86487 (18) | 0.0204 (6) | |
H3A | 0.2927 | 1.1003 | 0.8758 | 0.025* | |
C4 | 0.0899 (4) | 0.9781 (2) | 0.78753 (17) | 0.0181 (6) | |
C5 | −0.1138 (4) | 0.9222 (3) | 0.77510 (18) | 0.0216 (6) | |
H5A | −0.1603 | 0.8618 | 0.7239 | 0.026* | |
C6 | −0.2491 (4) | 0.9536 (3) | 0.83625 (19) | 0.0251 (6) | |
H6A | −0.3871 | 0.9148 | 0.8278 | 0.030* | |
C7 | 0.2004 (4) | 0.4356 (2) | 0.59530 (19) | 0.0225 (6) | |
H7A | 0.1618 | 0.3693 | 0.6322 | 0.027* | |
C8 | 0.2424 (4) | 0.5575 (2) | 0.63458 (18) | 0.0204 (6) | |
H8A | 0.2313 | 0.5749 | 0.6992 | 0.025* | |
C9 | 0.3007 (4) | 0.6554 (2) | 0.58073 (18) | 0.0185 (6) | |
C10 | 0.3164 (4) | 0.6277 (2) | 0.48615 (18) | 0.0205 (6) | |
H10A | 0.3577 | 0.6931 | 0.4487 | 0.025* | |
C11 | 0.2725 (4) | 0.5059 (2) | 0.44581 (18) | 0.0210 (6) | |
H11A | 0.2813 | 0.4872 | 0.3812 | 0.025* | |
C12 | 0.2160 (4) | 0.4130 (2) | 0.50176 (19) | 0.0206 (6) | |
C13 | 0.2098 (4) | 0.8217 (2) | 0.68521 (17) | 0.0183 (6) | |
H13A | 0.1030 | 0.7600 | 0.7052 | 0.022* | |
C14 | 0.2329 (4) | 0.9455 (2) | 0.72000 (17) | 0.0179 (6) | |
C15 | 0.3935 (4) | 1.0359 (2) | 0.69134 (17) | 0.0181 (6) | |
C16 | 0.5288 (4) | 0.9990 (2) | 0.63103 (17) | 0.0181 (6) | |
C17 | 0.5009 (4) | 0.8762 (2) | 0.59581 (17) | 0.0182 (6) | |
H17A | 0.5919 | 0.8531 | 0.5537 | 0.022* | |
C18 | 0.3390 (4) | 0.7864 (2) | 0.62211 (17) | 0.0188 (6) | |
C19 | 0.4204 (4) | 1.1726 (2) | 0.71882 (17) | 0.0198 (6) | |
C20 | 0.6148 (4) | 1.2424 (2) | 0.76212 (17) | 0.0214 (6) | |
H20A | 0.7079 | 1.1977 | 0.7764 | 0.026* | |
C21 | 0.6651 (4) | 1.3647 (2) | 0.78190 (18) | 0.0216 (6) | |
H21A | 0.5699 | 1.4077 | 0.7672 | 0.026* | |
C22 | 0.8547 (4) | 1.4389 (2) | 0.82446 (18) | 0.0216 (6) | |
C23 | 0.8852 (4) | 1.5658 (3) | 0.84806 (19) | 0.0274 (7) | |
H23A | 0.7825 | 1.6040 | 0.8354 | 0.033* | |
C24 | 1.0628 (4) | 1.6374 (3) | 0.8896 (2) | 0.0292 (7) | |
H24A | 1.0814 | 1.7239 | 0.9054 | 0.035* | |
C25 | 1.2137 (4) | 1.5813 (3) | 0.90810 (18) | 0.0269 (7) | |
C26 | 1.1865 (4) | 1.4552 (3) | 0.8842 (2) | 0.0295 (7) | |
H26A | 1.2891 | 1.4170 | 0.8971 | 0.035* | |
C27 | 1.0109 (4) | 1.3854 (3) | 0.8418 (2) | 0.0282 (7) | |
H27A | 0.9950 | 1.2996 | 0.8239 | 0.034* | |
C28 | 1.4004 (5) | 1.6533 (3) | 0.9511 (2) | 0.0325 (7) | |
C29 | 0.8394 (4) | 1.0612 (3) | 0.55730 (19) | 0.0234 (6) | |
H29A | 0.9443 | 1.1364 | 0.5510 | 0.035* | |
H29B | 0.7889 | 1.0205 | 0.4960 | 0.035* | |
H29C | 0.8936 | 1.0048 | 0.5903 | 0.035* |
U11 | U22 | U33 | U12 | U13 | U23 | |
F1 | 0.0321 (10) | 0.0470 (12) | 0.0418 (11) | 0.0210 (9) | 0.0180 (8) | 0.0045 (9) |
F2 | 0.0287 (9) | 0.0151 (9) | 0.0386 (10) | 0.0049 (7) | 0.0016 (7) | −0.0046 (7) |
O1 | 0.0235 (10) | 0.0234 (11) | 0.0322 (11) | 0.0118 (9) | 0.0014 (8) | 0.0047 (9) |
O2 | 0.0191 (9) | 0.0167 (10) | 0.0261 (10) | 0.0039 (8) | 0.0083 (8) | −0.0002 (8) |
N1 | 0.0341 (16) | 0.0406 (17) | 0.0495 (17) | 0.0063 (13) | −0.0063 (13) | −0.0082 (14) |
C1 | 0.0269 (15) | 0.0285 (17) | 0.0281 (16) | 0.0161 (13) | 0.0122 (12) | 0.0100 (13) |
C2 | 0.0282 (15) | 0.0214 (15) | 0.0230 (14) | 0.0103 (12) | 0.0066 (12) | 0.0019 (12) |
C3 | 0.0202 (14) | 0.0192 (15) | 0.0232 (14) | 0.0065 (11) | 0.0020 (11) | 0.0044 (11) |
C4 | 0.0190 (13) | 0.0175 (14) | 0.0204 (14) | 0.0079 (11) | 0.0023 (11) | 0.0059 (11) |
C5 | 0.0200 (14) | 0.0239 (16) | 0.0230 (14) | 0.0078 (12) | −0.0001 (11) | 0.0061 (12) |
C6 | 0.0168 (14) | 0.0296 (17) | 0.0334 (16) | 0.0106 (12) | 0.0042 (12) | 0.0124 (13) |
C7 | 0.0206 (14) | 0.0173 (15) | 0.0319 (16) | 0.0076 (11) | 0.0036 (12) | 0.0056 (12) |
C8 | 0.0197 (14) | 0.0224 (15) | 0.0199 (14) | 0.0067 (12) | 0.0025 (11) | 0.0020 (11) |
C9 | 0.0124 (12) | 0.0184 (15) | 0.0241 (14) | 0.0032 (11) | −0.0006 (10) | 0.0014 (11) |
C10 | 0.0186 (13) | 0.0183 (15) | 0.0246 (14) | 0.0047 (11) | 0.0007 (11) | 0.0028 (12) |
C11 | 0.0178 (14) | 0.0231 (15) | 0.0218 (14) | 0.0069 (11) | 0.0019 (11) | −0.0025 (12) |
C12 | 0.0142 (13) | 0.0150 (14) | 0.0316 (16) | 0.0045 (11) | 0.0000 (11) | −0.0036 (12) |
C13 | 0.0160 (13) | 0.0183 (15) | 0.0195 (13) | 0.0023 (11) | 0.0000 (11) | 0.0030 (11) |
C14 | 0.0155 (13) | 0.0217 (15) | 0.0169 (13) | 0.0057 (11) | −0.0032 (10) | 0.0025 (11) |
C15 | 0.0174 (13) | 0.0193 (15) | 0.0175 (13) | 0.0043 (11) | −0.0025 (11) | 0.0023 (11) |
C16 | 0.0149 (13) | 0.0209 (15) | 0.0184 (13) | 0.0039 (11) | −0.0013 (11) | 0.0031 (11) |
C17 | 0.0171 (13) | 0.0205 (15) | 0.0175 (13) | 0.0064 (11) | 0.0008 (10) | 0.0003 (11) |
C18 | 0.0189 (13) | 0.0193 (15) | 0.0188 (13) | 0.0060 (11) | −0.0029 (11) | 0.0034 (11) |
C19 | 0.0243 (14) | 0.0209 (15) | 0.0161 (13) | 0.0087 (12) | 0.0051 (11) | 0.0027 (11) |
C20 | 0.0257 (15) | 0.0197 (16) | 0.0204 (14) | 0.0096 (12) | 0.0013 (11) | −0.0004 (11) |
C21 | 0.0245 (14) | 0.0210 (16) | 0.0214 (14) | 0.0108 (12) | 0.0062 (11) | −0.0005 (12) |
C22 | 0.0278 (15) | 0.0187 (15) | 0.0187 (14) | 0.0085 (12) | 0.0067 (11) | −0.0024 (11) |
C23 | 0.0279 (16) | 0.0258 (17) | 0.0288 (16) | 0.0097 (13) | 0.0046 (12) | −0.0029 (13) |
C24 | 0.0333 (17) | 0.0211 (16) | 0.0304 (16) | 0.0072 (13) | 0.0086 (13) | −0.0097 (13) |
C25 | 0.0271 (15) | 0.0295 (17) | 0.0204 (14) | 0.0034 (13) | 0.0034 (12) | −0.0039 (12) |
C26 | 0.0292 (16) | 0.0287 (17) | 0.0312 (16) | 0.0088 (13) | 0.0007 (13) | 0.0024 (13) |
C27 | 0.0312 (16) | 0.0199 (15) | 0.0326 (16) | 0.0057 (13) | −0.0002 (13) | 0.0016 (13) |
C28 | 0.0315 (17) | 0.0304 (18) | 0.0329 (17) | 0.0068 (14) | 0.0027 (14) | −0.0051 (14) |
C29 | 0.0192 (14) | 0.0241 (16) | 0.0265 (15) | 0.0047 (12) | 0.0046 (11) | 0.0026 (12) |
F1—C1 | 1.360 (3) | C13—C18 | 1.390 (4) |
F2—C12 | 1.364 (3) | C13—C14 | 1.398 (4) |
O1—C19 | 1.221 (3) | C13—H13A | 0.9500 |
O2—C16 | 1.367 (3) | C14—C15 | 1.406 (4) |
O2—C29 | 1.429 (3) | C15—C16 | 1.403 (4) |
N1—C28 | 1.150 (4) | C15—C19 | 1.510 (4) |
C1—C6 | 1.375 (4) | C16—C17 | 1.385 (4) |
C1—C2 | 1.380 (4) | C17—C18 | 1.394 (4) |
C2—C3 | 1.379 (4) | C17—H17A | 0.9500 |
C2—H2A | 0.9500 | C19—C20 | 1.479 (4) |
C3—C4 | 1.396 (4) | C20—C21 | 1.328 (4) |
C3—H3A | 0.9500 | C20—H20A | 0.9500 |
C4—C5 | 1.400 (4) | C21—C22 | 1.464 (4) |
C4—C14 | 1.490 (4) | C21—H21A | 0.9500 |
C5—C6 | 1.387 (4) | C22—C23 | 1.392 (4) |
C5—H5A | 0.9500 | C22—C27 | 1.404 (4) |
C6—H6A | 0.9500 | C23—C24 | 1.387 (4) |
C7—C12 | 1.373 (4) | C23—H23A | 0.9500 |
C7—C8 | 1.385 (4) | C24—C25 | 1.395 (4) |
C7—H7A | 0.9500 | C24—H24A | 0.9500 |
C8—C9 | 1.398 (4) | C25—C26 | 1.387 (4) |
C8—H8A | 0.9500 | C25—C28 | 1.443 (4) |
C9—C10 | 1.394 (4) | C26—C27 | 1.376 (4) |
C9—C18 | 1.488 (4) | C26—H26A | 0.9500 |
C10—C11 | 1.388 (4) | C27—H27A | 0.9500 |
C10—H10A | 0.9500 | C29—H29A | 0.9800 |
C11—C12 | 1.374 (4) | C29—H29B | 0.9800 |
C11—H11A | 0.9500 | C29—H29C | 0.9800 |
C16—O2—C29 | 118.1 (2) | C14—C15—C19 | 122.5 (2) |
F1—C1—C6 | 119.2 (2) | O2—C16—C17 | 123.8 (2) |
F1—C1—C2 | 118.5 (3) | O2—C16—C15 | 115.1 (2) |
C6—C1—C2 | 122.3 (3) | C17—C16—C15 | 121.1 (2) |
C3—C2—C1 | 118.7 (3) | C16—C17—C18 | 120.0 (2) |
C3—C2—H2A | 120.7 | C16—C17—H17A | 120.0 |
C1—C2—H2A | 120.7 | C18—C17—H17A | 120.0 |
C2—C3—C4 | 121.2 (2) | C13—C18—C17 | 119.1 (2) |
C2—C3—H3A | 119.4 | C13—C18—C9 | 120.3 (2) |
C4—C3—H3A | 119.4 | C17—C18—C9 | 120.5 (2) |
C3—C4—C5 | 118.2 (2) | O1—C19—C20 | 122.5 (2) |
C3—C4—C14 | 121.3 (2) | O1—C19—C15 | 120.8 (2) |
C5—C4—C14 | 120.5 (2) | C20—C19—C15 | 116.7 (2) |
C6—C5—C4 | 121.2 (3) | C21—C20—C19 | 123.0 (3) |
C6—C5—H5A | 119.4 | C21—C20—H20A | 118.5 |
C4—C5—H5A | 119.4 | C19—C20—H20A | 118.5 |
C1—C6—C5 | 118.4 (3) | C20—C21—C22 | 125.6 (3) |
C1—C6—H6A | 120.8 | C20—C21—H21A | 117.2 |
C5—C6—H6A | 120.8 | C22—C21—H21A | 117.2 |
C12—C7—C8 | 118.3 (3) | C23—C22—C27 | 118.2 (3) |
C12—C7—H7A | 120.9 | C23—C22—C21 | 120.4 (2) |
C8—C7—H7A | 120.9 | C27—C22—C21 | 121.5 (2) |
C7—C8—C9 | 121.1 (2) | C24—C23—C22 | 121.3 (3) |
C7—C8—H8A | 119.5 | C24—C23—H23A | 119.4 |
C9—C8—H8A | 119.5 | C22—C23—H23A | 119.4 |
C10—C9—C8 | 118.5 (2) | C23—C24—C25 | 119.4 (3) |
C10—C9—C18 | 120.2 (2) | C23—C24—H24A | 120.3 |
C8—C9—C18 | 121.2 (2) | C25—C24—H24A | 120.3 |
C11—C10—C9 | 121.0 (3) | C26—C25—C24 | 120.1 (3) |
C11—C10—H10A | 119.5 | C26—C25—C28 | 119.2 (3) |
C9—C10—H10A | 119.5 | C24—C25—C28 | 120.8 (3) |
C12—C11—C10 | 118.3 (2) | C27—C26—C25 | 120.0 (3) |
C12—C11—H11A | 120.9 | C27—C26—H26A | 120.0 |
C10—C11—H11A | 120.9 | C25—C26—H26A | 120.0 |
F2—C12—C7 | 118.8 (2) | C26—C27—C22 | 121.0 (3) |
F2—C12—C11 | 118.3 (2) | C26—C27—H27A | 119.5 |
C7—C12—C11 | 122.9 (2) | C22—C27—H27A | 119.5 |
C18—C13—C14 | 121.7 (2) | N1—C28—C25 | 177.9 (3) |
C18—C13—H13A | 119.1 | O2—C29—H29A | 109.5 |
C14—C13—H13A | 119.1 | O2—C29—H29B | 109.5 |
C13—C14—C15 | 118.8 (2) | H29A—C29—H29B | 109.5 |
C13—C14—C4 | 119.5 (2) | O2—C29—H29C | 109.5 |
C15—C14—C4 | 121.7 (2) | H29A—C29—H29C | 109.5 |
C16—C15—C14 | 119.2 (2) | H29B—C29—H29C | 109.5 |
C16—C15—C19 | 118.3 (2) | ||
F1—C1—C2—C3 | −178.9 (2) | C19—C15—C16—O2 | 4.0 (3) |
C6—C1—C2—C3 | 1.8 (4) | C14—C15—C16—C17 | 3.3 (4) |
C1—C2—C3—C4 | 0.7 (4) | C19—C15—C16—C17 | −173.4 (2) |
C2—C3—C4—C5 | −2.5 (4) | O2—C16—C17—C18 | −178.8 (2) |
C2—C3—C4—C14 | 177.9 (2) | C15—C16—C17—C18 | −1.7 (4) |
C3—C4—C5—C6 | 1.8 (4) | C14—C13—C18—C17 | 2.8 (4) |
C14—C4—C5—C6 | −178.6 (2) | C14—C13—C18—C9 | −175.0 (2) |
F1—C1—C6—C5 | 178.3 (2) | C16—C17—C18—C13 | −1.3 (4) |
C2—C1—C6—C5 | −2.5 (4) | C16—C17—C18—C9 | 176.5 (2) |
C4—C5—C6—C1 | 0.6 (4) | C10—C9—C18—C13 | 134.0 (3) |
C12—C7—C8—C9 | −0.5 (4) | C8—C9—C18—C13 | −43.9 (4) |
C7—C8—C9—C10 | −0.1 (4) | C10—C9—C18—C17 | −43.7 (3) |
C7—C8—C9—C18 | 177.8 (2) | C8—C9—C18—C17 | 138.3 (3) |
C8—C9—C10—C11 | 0.9 (4) | C16—C15—C19—O1 | 124.0 (3) |
C18—C9—C10—C11 | −177.1 (2) | C14—C15—C19—O1 | −52.6 (4) |
C9—C10—C11—C12 | −1.0 (4) | C16—C15—C19—C20 | −56.7 (3) |
C8—C7—C12—F2 | −179.7 (2) | C14—C15—C19—C20 | 126.7 (3) |
C8—C7—C12—C11 | 0.5 (4) | O1—C19—C20—C21 | −7.0 (4) |
C10—C11—C12—F2 | −179.6 (2) | C15—C19—C20—C21 | 173.7 (2) |
C10—C11—C12—C7 | 0.3 (4) | C19—C20—C21—C22 | −179.9 (2) |
C18—C13—C14—C15 | −1.2 (4) | C20—C21—C22—C23 | −175.3 (3) |
C18—C13—C14—C4 | 180.0 (2) | C20—C21—C22—C27 | 5.3 (4) |
C3—C4—C14—C13 | 137.4 (3) | C27—C22—C23—C24 | −1.6 (4) |
C5—C4—C14—C13 | −42.2 (3) | C21—C22—C23—C24 | 179.1 (3) |
C3—C4—C14—C15 | −41.4 (4) | C22—C23—C24—C25 | 0.0 (4) |
C5—C4—C14—C15 | 139.0 (3) | C23—C24—C25—C26 | 0.6 (4) |
C13—C14—C15—C16 | −1.9 (4) | C23—C24—C25—C28 | 179.8 (3) |
C4—C14—C15—C16 | 176.9 (2) | C24—C25—C26—C27 | 0.4 (4) |
C13—C14—C15—C19 | 174.7 (2) | C28—C25—C26—C27 | −178.9 (3) |
C4—C14—C15—C19 | −6.5 (4) | C25—C26—C27—C22 | −2.0 (4) |
C29—O2—C16—C17 | −11.4 (3) | C23—C22—C27—C26 | 2.5 (4) |
C29—O2—C16—C15 | 171.4 (2) | C21—C22—C27—C26 | −178.1 (3) |
C14—C15—C16—O2 | −179.3 (2) |
Cg1 is the centroid of the C13–C18 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C7—H7A···O1i | 0.95 | 2.40 | 3.213 (3) | 143 |
C29—H29A···F2ii | 0.98 | 2.54 | 3.447 (3) | 155 |
C29—H29B···Cg1iii | 0.98 | 2.75 | 3.521 (3) | 136 |
Symmetry codes: (i) x, y−1, z; (ii) x+1, y+1, z; (iii) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C29H19F2NO2 |
Mr | 451.45 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 6.9656 (2), 11.2404 (3), 14.6014 (3) |
α, β, γ (°) | 96.108 (1), 90.415 (1), 104.764 (1) |
V (Å3) | 1098.51 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.34 × 0.20 × 0.12 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.968, 0.989 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17054, 3828, 2982 |
Rint | 0.036 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.112, 1.03 |
No. of reflections | 3828 |
No. of parameters | 308 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.23 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Cg1 is the centroid of the C13–C18 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C7—H7A···O1i | 0.95 | 2.40 | 3.213 (3) | 143 |
C29—H29A···F2ii | 0.98 | 2.54 | 3.447 (3) | 155 |
C29—H29B···Cg1iii | 0.98 | 2.75 | 3.521 (3) | 136 |
Symmetry codes: (i) x, y−1, z; (ii) x+1, y+1, z; (iii) −x+1, −y+2, −z+1. |
Acknowledgements
HKF and WSL thank Universiti Sains Malaysia (USM) for the Research University Grant (1001/PFIZIK/811160). WSL also thanks the Malaysian Government and USM for the award of the post of Research Officer under the Research University Grant (1001/PFIZIK/811160). BN thanks the UGC for financial assistance through the SAP and BSR one-time grant for the purchase of chemicals. SS thanks Mangalore University for the research facilities.
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.
In continuation of our work on synthesis of terphenyl chalcones (Fun, Hemamalini et al., 2011; Fun, Shahani et al., 2011; Betz et al., 2011), the title compound is prepared and its crystal structure is reported. The starting material of the title compound was prepared from 4,4'-difluoro chalcone by several steps (Fun et al., 2012).
In the title compound (Fig. 1), the central benzene ring (C13–C18) forms dihedral angles of 56.92 (12)° with the cyanobenzene ring (C22–C28/N1) and 40.91 (12) and 44.76 (12)°, respectively, with the fluorobenzene rings (C1–C6/F1 & C7–C12/F2). Bond lengths are angles are within the normal ranges and are comparable with the related structure (Fun, Chia et al., 2011).
In the crystal packing (Fig. 2), intermolecular C7—H7A···O1 and C29—H29A···F2 hydrogen bonds (Table 1) link the molecules to form planes parallel to the ab plane. The crystal packing is further stabilized by C—H···π interactions (Table 1), involving the central benzene ring.