organic compounds
(E)-1-(4,4′′-Difluoro-5′-methoxy-1,1′:3′,1′′-terphenyl-4′-yl)-3-(4-methylphenyl)prop-2-en-1-one
aNelson Mandela Metropolitan University, Summerstrand Campus, Department of Chemistry, University Way, Summerstrand, PO Box 77000, Port Elizabeth 6031, South Africa, bMangalore University, Department of Studies in Chemistry, Mangalagangotri 574 199, India, and cUniversity of Mysore, Department of Studies in Chemistry, Manasagangotri, Mysore 570 006, India
*Correspondence e-mail: richard.betz@webmail.co.za
In the meta-terphenyl fragment of the title molecule, C29H22F2O2, the two fluorophenyl rings are twisted from the central benzene ring by 46.72 (6) and 41.70 (6)°, respectively. In the crystal, weak C—H⋯O and C—H⋯F hydrogen bonds link the molecules into layers parallel to the ab plane. The crystal packing exhibits π–π interactions, the shortest distance between the centroids of aromatic rings being 3.6364 (7) Å.
Related literature
For the pharmacological importance of terphenyls, see: Liu (2006). For our studies of different chalcone derivatives, see: Samshuddin et al. (2011a,b); Fun et al. (2010a,b); Jasinski et al. (2010a,b); Baktir et al. (2011a,b). For graph-set analysis of hydrogen bonds, see: Etter et al. (1990); Bernstein et al. (1995).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: APEX2 (Bruker, 2010); cell SAINT (Bruker, 2010); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S160053681104579X/cv5183sup1.cif
contains datablocks I, global. DOI:Supporting information file. DOI: https://doi.org/10.1107/S160053681104579X/cv5183Isup2.cdx
Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681104579X/cv5183Isup3.hkl
Supporting information file. DOI: https://doi.org/10.1107/S160053681104579X/cv5183Isup4.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-methylbenzaldehyde (0.120 g, 0.001 mol) in 30 ml e thanol, 1 ml of 10% sodium hydroxide solution was added and stirred at 278–283 K for 3 h. The precipitate formed was collected by filtration and purified by recrystallization from ethanol (yield: 76%). Single crystals suitable for the X-ray diffraction study were grown from DMF by slow evaporation at room temperature.
C-bound H atoms were placed in calculated positions (C—H 0.95 Å for aromatic and vinylic carbon atoms) and were included in the
in the riding model approximation, with Uiso(H) set to 1.2Ueq(C). The H atoms of the methyl groups were allowed to rotate with a fixed angle around the C—C bond to best fit the experimental electron density (HFIX 137 in the SHELX program suite (Sheldrick, 2008)), with Uiso(H) set to 1.5Ueq(C).In view of pharmacological importance of terphenyls (Liu, 2006) and
and in continuation of our works on the synthesis of various derivatives of 4,4'-difluoro chalcone (Samshuddin et al., 2011a,b; Fun et al., 2010a,b; Jasinski et al., 2010a,b; Baktir et al., 2011a,b), the molecular and of the title compound (I) is reported.In (I) (Fig. 1), the C=C double of the Michael system is (E)-configured. The least-squares planes defined by the carbon atoms of the para-fluoro phenyl rings of the terphenyl moiety and its central phenyl ring enclose angles of 41.70 (6)° and 46.72 (6)°, respectively.
In the
intermolecular C–H···O and C–H···F contacts are present (Table 1). While the C–H···O contacts are apparent between the ketonic oxygen atom and one of the phenyl-bonded hydrogen atoms, the C–H···F contacts are supported by one of the hydrogen atoms of the methoxy substituent on the terphenyl's central phenyl group. In terms of graph-set analysis (Etter et al., 1990; Bernstein et al., 1995), the C–H···O contacts necessitate a C11(10) descriptor on the unitary level and the C–H···F contacts necessitate a C11(11) descriptor on the same level. These two antidromic chains connect the molecules to planes perpendicular to the crystallographic c axis. The shortest intercentroid distance between two aromatic systems was found at 3.6364 (7) Å and is apparent between one of the para-fluoro phenyl moieties and its symmetry-generated equivalent. The packing of the title compound in the is shown in Figure 2.For the pharmacological importance of terphenyls, see: Liu (2006). For our studies of different chalcone derivatives, see: Samshuddin et al. (2011a,b); Fun et al. (2010a,b); Jasinski et al. (2010a,b); Baktir et al. (2011a,b). For graph-set analysis of hydrogen bonds, see: Etter et al. (1990); Bernstein et al. (1995).
Data collection: APEX2 (Bruker, 2010); cell
SAINT (Bruker, 2010); data reduction: SAINT (Bruker, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The molecular structure of (I) with atomic labels and anisotropic displacement ellipsoids (drawn at 50% probability level). | |
Fig. 2. A portion of the crystal packing viewed down the a-axis. |
C29H22F2O2 | Z = 2 |
Mr = 440.47 | F(000) = 460 |
Triclinic, P1 | Dx = 1.320 Mg m−3 |
Hall symbol: -P 1 | Melting point: 465 K |
a = 6.9020 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 11.3965 (6) Å | Cell parameters from 8632 reflections |
c = 14.8362 (8) Å | θ = 2.5–28.3° |
α = 96.177 (2)° | µ = 0.09 mm−1 |
β = 93.381 (2)° | T = 200 K |
γ = 106.446 (2)° | Platelet, colourless |
V = 1107.85 (10) Å3 | 0.36 × 0.24 × 0.11 mm |
Bruker APEXII CCD diffractometer | 4020 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.042 |
Graphite monochromator | θmax = 28.4°, θmin = 1.9° |
φ and ω scans | h = −9→9 |
20122 measured reflections | k = −15→15 |
5516 independent reflections | l = −19→19 |
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)] = 0.039 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.109 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0547P)2 + 0.0888P] where P = (Fo2 + 2Fc2)/3 |
5516 reflections | (Δ/σ)max < 0.001 |
300 parameters | Δρmax = 0.26 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C29H22F2O2 | γ = 106.446 (2)° |
Mr = 440.47 | V = 1107.85 (10) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.9020 (3) Å | Mo Kα radiation |
b = 11.3965 (6) Å | µ = 0.09 mm−1 |
c = 14.8362 (8) Å | T = 200 K |
α = 96.177 (2)° | 0.36 × 0.24 × 0.11 mm |
β = 93.381 (2)° |
Bruker APEXII CCD diffractometer | 4020 reflections with I > 2σ(I) |
20122 measured reflections | Rint = 0.042 |
5516 independent reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.109 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.26 e Å−3 |
5516 reflections | Δρmin = −0.24 e Å−3 |
300 parameters |
x | y | z | Uiso*/Ueq | ||
F1 | −0.32392 (11) | −0.70671 (6) | 0.46700 (6) | 0.0469 (2) | |
F2 | −0.80404 (14) | 0.05047 (10) | 0.94895 (6) | 0.0661 (3) | |
O1 | −0.20131 (13) | 0.21294 (8) | 0.70190 (7) | 0.0448 (2) | |
O2 | 0.19220 (12) | 0.09542 (7) | 0.60606 (6) | 0.0358 (2) | |
C1 | −0.06141 (17) | 0.17004 (10) | 0.71538 (8) | 0.0305 (3) | |
C2 | 0.13900 (18) | 0.24573 (11) | 0.75946 (8) | 0.0336 (3) | |
H2 | 0.2390 | 0.2061 | 0.7733 | 0.040* | |
C3 | 0.18420 (19) | 0.36734 (11) | 0.78036 (9) | 0.0364 (3) | |
H3 | 0.0811 | 0.4041 | 0.7651 | 0.044* | |
C4 | 0.34886 (17) | 0.06610 (12) | 0.55736 (9) | 0.0376 (3) | |
H4A | 0.4098 | 0.0142 | 0.5913 | 0.056* | |
H4B | 0.4532 | 0.1424 | 0.5503 | 0.056* | |
H4C | 0.2909 | 0.0216 | 0.4972 | 0.056* | |
C5 | 0.9333 (2) | 0.70099 (15) | 0.96324 (12) | 0.0630 (5) | |
H5A | 0.9502 | 0.7847 | 0.9482 | 0.095* | |
H5B | 1.0489 | 0.6733 | 0.9450 | 0.095* | |
H5C | 0.9263 | 0.7008 | 1.0290 | 0.095* | |
C11 | −0.08873 (15) | 0.03487 (10) | 0.68885 (8) | 0.0263 (2) | |
C12 | 0.04172 (15) | 0.00001 (10) | 0.62946 (8) | 0.0270 (2) | |
C13 | 0.01112 (15) | −0.12245 (10) | 0.59474 (8) | 0.0273 (2) | |
H13 | 0.0981 | −0.1439 | 0.5528 | 0.033* | |
C14 | −0.14791 (15) | −0.21398 (10) | 0.62168 (8) | 0.0265 (2) | |
C15 | −0.27208 (15) | −0.18035 (10) | 0.68396 (8) | 0.0273 (2) | |
H15 | −0.3764 | −0.2430 | 0.7045 | 0.033* | |
C16 | −0.24777 (15) | −0.05737 (10) | 0.71708 (8) | 0.0260 (2) | |
C21 | −0.18947 (15) | −0.34472 (10) | 0.58167 (8) | 0.0268 (2) | |
C22 | −0.19231 (16) | −0.37483 (11) | 0.48819 (8) | 0.0308 (3) | |
H22 | −0.1617 | −0.3109 | 0.4505 | 0.037* | |
C23 | −0.23905 (16) | −0.49661 (11) | 0.44927 (9) | 0.0334 (3) | |
H23 | −0.2425 | −0.5172 | 0.3853 | 0.040* | |
C24 | −0.28010 (16) | −0.58650 (10) | 0.50542 (9) | 0.0327 (3) | |
C25 | −0.27847 (17) | −0.56188 (11) | 0.59813 (9) | 0.0354 (3) | |
H25 | −0.3069 | −0.6266 | 0.6351 | 0.042* | |
C26 | −0.23396 (17) | −0.43962 (11) | 0.63608 (9) | 0.0318 (3) | |
H26 | −0.2338 | −0.4202 | 0.7000 | 0.038* | |
C31 | −0.39190 (16) | −0.02834 (10) | 0.78062 (8) | 0.0279 (2) | |
C32 | −0.32771 (18) | 0.05884 (11) | 0.85792 (8) | 0.0351 (3) | |
H32 | −0.1872 | 0.1002 | 0.8720 | 0.042* | |
C33 | −0.4659 (2) | 0.08601 (13) | 0.91445 (9) | 0.0427 (3) | |
H33 | −0.4220 | 0.1466 | 0.9664 | 0.051* | |
C34 | −0.6676 (2) | 0.02359 (13) | 0.89374 (10) | 0.0425 (3) | |
C35 | −0.73750 (18) | −0.06496 (13) | 0.82011 (9) | 0.0395 (3) | |
H35 | −0.8780 | −0.1077 | 0.8081 | 0.047* | |
C36 | −0.59796 (16) | −0.09080 (11) | 0.76341 (8) | 0.0325 (3) | |
H36 | −0.6438 | −0.1521 | 0.7120 | 0.039* | |
C41 | 0.3765 (2) | 0.45038 (11) | 0.82446 (9) | 0.0373 (3) | |
C42 | 0.5431 (2) | 0.40945 (13) | 0.84736 (11) | 0.0496 (4) | |
H42 | 0.5346 | 0.3248 | 0.8328 | 0.059* | |
C43 | 0.7201 (2) | 0.49057 (13) | 0.89099 (11) | 0.0526 (4) | |
H43 | 0.8312 | 0.4604 | 0.9061 | 0.063* | |
C44 | 0.7401 (2) | 0.61507 (12) | 0.91337 (9) | 0.0456 (3) | |
C45 | 0.5773 (2) | 0.65663 (12) | 0.88825 (10) | 0.0477 (4) | |
H45 | 0.5884 | 0.7419 | 0.9011 | 0.057* | |
C46 | 0.3984 (2) | 0.57627 (12) | 0.84473 (10) | 0.0435 (3) | |
H46 | 0.2889 | 0.6073 | 0.8284 | 0.052* |
U11 | U22 | U33 | U12 | U13 | U23 | |
F1 | 0.0460 (4) | 0.0236 (4) | 0.0651 (6) | 0.0042 (3) | 0.0076 (4) | −0.0058 (3) |
F2 | 0.0647 (6) | 0.0905 (7) | 0.0592 (6) | 0.0438 (5) | 0.0305 (5) | 0.0092 (5) |
O1 | 0.0439 (5) | 0.0328 (5) | 0.0615 (7) | 0.0168 (4) | 0.0003 (4) | 0.0101 (4) |
O2 | 0.0357 (4) | 0.0264 (4) | 0.0418 (5) | 0.0010 (3) | 0.0141 (4) | 0.0051 (4) |
C1 | 0.0366 (6) | 0.0260 (6) | 0.0301 (6) | 0.0095 (5) | 0.0056 (5) | 0.0066 (5) |
C2 | 0.0384 (6) | 0.0270 (6) | 0.0340 (7) | 0.0075 (5) | 0.0025 (5) | 0.0041 (5) |
C3 | 0.0450 (7) | 0.0280 (6) | 0.0352 (7) | 0.0087 (5) | 0.0063 (5) | 0.0038 (5) |
C4 | 0.0288 (6) | 0.0398 (7) | 0.0415 (7) | 0.0032 (5) | 0.0100 (5) | 0.0085 (6) |
C5 | 0.0609 (9) | 0.0533 (10) | 0.0569 (10) | −0.0055 (7) | 0.0006 (8) | −0.0081 (8) |
C11 | 0.0274 (5) | 0.0243 (5) | 0.0264 (6) | 0.0067 (4) | −0.0007 (4) | 0.0039 (4) |
C12 | 0.0253 (5) | 0.0251 (5) | 0.0288 (6) | 0.0036 (4) | 0.0011 (4) | 0.0059 (4) |
C13 | 0.0249 (5) | 0.0274 (6) | 0.0294 (6) | 0.0071 (4) | 0.0036 (4) | 0.0030 (5) |
C14 | 0.0258 (5) | 0.0245 (5) | 0.0284 (6) | 0.0067 (4) | −0.0003 (4) | 0.0040 (4) |
C15 | 0.0247 (5) | 0.0255 (6) | 0.0301 (6) | 0.0039 (4) | 0.0029 (4) | 0.0059 (5) |
C16 | 0.0251 (5) | 0.0273 (6) | 0.0256 (6) | 0.0077 (4) | 0.0005 (4) | 0.0040 (4) |
C21 | 0.0222 (5) | 0.0240 (5) | 0.0335 (6) | 0.0059 (4) | 0.0029 (4) | 0.0033 (4) |
C22 | 0.0298 (5) | 0.0274 (6) | 0.0345 (7) | 0.0067 (4) | 0.0048 (5) | 0.0047 (5) |
C23 | 0.0296 (5) | 0.0320 (6) | 0.0359 (7) | 0.0068 (5) | 0.0035 (5) | −0.0015 (5) |
C24 | 0.0248 (5) | 0.0224 (6) | 0.0481 (8) | 0.0049 (4) | 0.0034 (5) | −0.0023 (5) |
C25 | 0.0339 (6) | 0.0248 (6) | 0.0479 (8) | 0.0067 (5) | 0.0060 (5) | 0.0099 (5) |
C26 | 0.0314 (5) | 0.0300 (6) | 0.0336 (6) | 0.0079 (4) | 0.0043 (5) | 0.0051 (5) |
C31 | 0.0298 (5) | 0.0287 (6) | 0.0283 (6) | 0.0116 (4) | 0.0044 (4) | 0.0078 (5) |
C32 | 0.0375 (6) | 0.0340 (7) | 0.0334 (7) | 0.0101 (5) | 0.0041 (5) | 0.0032 (5) |
C33 | 0.0552 (8) | 0.0406 (7) | 0.0353 (7) | 0.0188 (6) | 0.0097 (6) | 0.0017 (6) |
C34 | 0.0476 (7) | 0.0536 (8) | 0.0394 (8) | 0.0298 (6) | 0.0190 (6) | 0.0143 (6) |
C35 | 0.0302 (6) | 0.0520 (8) | 0.0424 (8) | 0.0173 (5) | 0.0078 (5) | 0.0164 (6) |
C36 | 0.0306 (5) | 0.0362 (6) | 0.0326 (6) | 0.0118 (5) | 0.0026 (5) | 0.0077 (5) |
C41 | 0.0484 (7) | 0.0263 (6) | 0.0334 (7) | 0.0046 (5) | 0.0065 (5) | 0.0020 (5) |
C42 | 0.0581 (8) | 0.0282 (7) | 0.0574 (9) | 0.0076 (6) | −0.0049 (7) | 0.0034 (6) |
C43 | 0.0541 (8) | 0.0412 (8) | 0.0570 (10) | 0.0079 (6) | −0.0068 (7) | 0.0056 (7) |
C44 | 0.0540 (8) | 0.0378 (8) | 0.0347 (7) | −0.0014 (6) | 0.0069 (6) | −0.0016 (6) |
C45 | 0.0619 (9) | 0.0286 (7) | 0.0445 (8) | 0.0027 (6) | 0.0124 (7) | −0.0061 (6) |
C46 | 0.0535 (8) | 0.0299 (7) | 0.0448 (8) | 0.0095 (6) | 0.0098 (6) | −0.0012 (6) |
F1—C24 | 1.3676 (13) | C21—C26 | 1.3946 (16) |
F2—C34 | 1.3610 (14) | C22—C23 | 1.3841 (16) |
O1—C1 | 1.2153 (14) | C22—H22 | 0.9500 |
O2—C12 | 1.3660 (12) | C23—C24 | 1.3678 (17) |
O2—C4 | 1.4310 (14) | C23—H23 | 0.9500 |
C1—C2 | 1.4770 (16) | C24—C25 | 1.3727 (19) |
C1—C11 | 1.5032 (15) | C25—C26 | 1.3861 (17) |
C2—C3 | 1.3288 (17) | C25—H25 | 0.9500 |
C2—H2 | 0.9500 | C26—H26 | 0.9500 |
C3—C41 | 1.4625 (18) | C31—C36 | 1.3927 (15) |
C3—H3 | 0.9500 | C31—C32 | 1.3945 (17) |
C4—H4A | 0.9800 | C32—C33 | 1.3837 (17) |
C4—H4B | 0.9800 | C32—H32 | 0.9500 |
C4—H4C | 0.9800 | C33—C34 | 1.371 (2) |
C5—C44 | 1.507 (2) | C33—H33 | 0.9500 |
C5—H5A | 0.9800 | C34—C35 | 1.367 (2) |
C5—H5B | 0.9800 | C35—C36 | 1.3873 (17) |
C5—H5C | 0.9800 | C35—H35 | 0.9500 |
C11—C12 | 1.4020 (16) | C36—H36 | 0.9500 |
C11—C16 | 1.4075 (15) | C41—C42 | 1.395 (2) |
C12—C13 | 1.3869 (16) | C41—C46 | 1.3967 (17) |
C13—C14 | 1.3949 (15) | C42—C43 | 1.380 (2) |
C13—H13 | 0.9500 | C42—H42 | 0.9500 |
C14—C15 | 1.3923 (15) | C43—C44 | 1.387 (2) |
C14—C21 | 1.4840 (15) | C43—H43 | 0.9500 |
C15—C16 | 1.3938 (15) | C44—C45 | 1.384 (2) |
C15—H15 | 0.9500 | C45—C46 | 1.3850 (19) |
C16—C31 | 1.4891 (15) | C45—H45 | 0.9500 |
C21—C22 | 1.3900 (17) | C46—H46 | 0.9500 |
C12—O2—C4 | 117.89 (9) | C24—C23—H23 | 120.9 |
O1—C1—C2 | 122.43 (11) | C22—C23—H23 | 120.9 |
O1—C1—C11 | 120.40 (10) | F1—C24—C23 | 118.13 (11) |
C2—C1—C11 | 117.16 (10) | F1—C24—C25 | 118.60 (11) |
C3—C2—C1 | 122.25 (11) | C23—C24—C25 | 123.27 (11) |
C3—C2—H2 | 118.9 | C24—C25—C26 | 117.94 (11) |
C1—C2—H2 | 118.9 | C24—C25—H25 | 121.0 |
C2—C3—C41 | 126.60 (12) | C26—C25—H25 | 121.0 |
C2—C3—H3 | 116.7 | C25—C26—C21 | 120.86 (12) |
C41—C3—H3 | 116.7 | C25—C26—H26 | 119.6 |
O2—C4—H4A | 109.5 | C21—C26—H26 | 119.6 |
O2—C4—H4B | 109.5 | C36—C31—C32 | 118.37 (11) |
H4A—C4—H4B | 109.5 | C36—C31—C16 | 119.36 (10) |
O2—C4—H4C | 109.5 | C32—C31—C16 | 122.27 (10) |
H4A—C4—H4C | 109.5 | C33—C32—C31 | 120.91 (11) |
H4B—C4—H4C | 109.5 | C33—C32—H32 | 119.5 |
C44—C5—H5A | 109.5 | C31—C32—H32 | 119.5 |
C44—C5—H5B | 109.5 | C34—C33—C32 | 118.51 (13) |
H5A—C5—H5B | 109.5 | C34—C33—H33 | 120.7 |
C44—C5—H5C | 109.5 | C32—C33—H33 | 120.7 |
H5A—C5—H5C | 109.5 | F2—C34—C35 | 118.54 (12) |
H5B—C5—H5C | 109.5 | F2—C34—C33 | 118.68 (13) |
C12—C11—C16 | 118.99 (10) | C35—C34—C33 | 122.78 (12) |
C12—C11—C1 | 118.59 (9) | C34—C35—C36 | 118.27 (11) |
C16—C11—C1 | 122.31 (10) | C34—C35—H35 | 120.9 |
O2—C12—C13 | 123.56 (10) | C36—C35—H35 | 120.9 |
O2—C12—C11 | 115.00 (10) | C35—C36—C31 | 121.12 (12) |
C13—C12—C11 | 121.37 (9) | C35—C36—H36 | 119.4 |
C12—C13—C14 | 119.73 (10) | C31—C36—H36 | 119.4 |
C12—C13—H13 | 120.1 | C42—C41—C46 | 117.55 (12) |
C14—C13—H13 | 120.1 | C42—C41—C3 | 122.68 (12) |
C15—C14—C13 | 119.07 (10) | C46—C41—C3 | 119.77 (12) |
C15—C14—C21 | 120.41 (9) | C43—C42—C41 | 120.74 (13) |
C13—C14—C21 | 120.48 (10) | C43—C42—H42 | 119.6 |
C14—C15—C16 | 121.90 (10) | C41—C42—H42 | 119.6 |
C14—C15—H15 | 119.1 | C42—C43—C44 | 121.73 (15) |
C16—C15—H15 | 119.1 | C42—C43—H43 | 119.1 |
C15—C16—C11 | 118.83 (10) | C44—C43—H43 | 119.1 |
C15—C16—C31 | 118.77 (9) | C45—C44—C43 | 117.65 (13) |
C11—C16—C31 | 122.40 (10) | C45—C44—C5 | 121.74 (14) |
C22—C21—C26 | 118.81 (11) | C43—C44—C5 | 120.61 (15) |
C22—C21—C14 | 120.14 (10) | C44—C45—C46 | 121.26 (13) |
C26—C21—C14 | 121.01 (11) | C44—C45—H45 | 119.4 |
C23—C22—C21 | 120.93 (11) | C46—C45—H45 | 119.4 |
C23—C22—H22 | 119.5 | C45—C46—C41 | 121.02 (14) |
C21—C22—H22 | 119.5 | C45—C46—H46 | 119.5 |
C24—C23—C22 | 118.18 (12) | C41—C46—H46 | 119.5 |
O1—C1—C2—C3 | −5.67 (19) | C22—C23—C24—C25 | 0.43 (17) |
C11—C1—C2—C3 | 175.54 (11) | F1—C24—C25—C26 | −179.95 (10) |
C1—C2—C3—C41 | 179.52 (11) | C23—C24—C25—C26 | 0.38 (17) |
O1—C1—C11—C12 | 123.37 (12) | C24—C25—C26—C21 | −0.90 (17) |
C2—C1—C11—C12 | −57.82 (14) | C22—C21—C26—C25 | 0.60 (16) |
O1—C1—C11—C16 | −52.71 (16) | C14—C21—C26—C25 | 178.12 (10) |
C2—C1—C11—C16 | 126.10 (11) | C15—C16—C31—C36 | −42.03 (15) |
C4—O2—C12—C13 | −12.40 (16) | C11—C16—C31—C36 | 137.58 (11) |
C4—O2—C12—C11 | 170.52 (10) | C15—C16—C31—C32 | 137.28 (12) |
C16—C11—C12—O2 | −179.66 (10) | C11—C16—C31—C32 | −43.11 (16) |
C1—C11—C12—O2 | 4.12 (15) | C36—C31—C32—C33 | −2.31 (18) |
C16—C11—C12—C13 | 3.19 (16) | C16—C31—C32—C33 | 178.38 (11) |
C1—C11—C12—C13 | −173.03 (10) | C31—C32—C33—C34 | 1.19 (19) |
O2—C12—C13—C14 | −179.30 (10) | C32—C33—C34—F2 | −179.71 (12) |
C11—C12—C13—C14 | −2.40 (17) | C32—C33—C34—C35 | 0.6 (2) |
C12—C13—C14—C15 | −0.65 (16) | F2—C34—C35—C36 | 179.17 (11) |
C12—C13—C14—C21 | 176.85 (10) | C33—C34—C35—C36 | −1.1 (2) |
C13—C14—C15—C16 | 2.93 (16) | C34—C35—C36—C31 | −0.09 (18) |
C21—C14—C15—C16 | −174.57 (10) | C32—C31—C36—C35 | 1.75 (17) |
C14—C15—C16—C11 | −2.12 (16) | C16—C31—C36—C35 | −178.91 (11) |
C14—C15—C16—C31 | 177.50 (10) | C2—C3—C41—C42 | 2.5 (2) |
C12—C11—C16—C15 | −0.93 (15) | C2—C3—C41—C46 | −177.86 (12) |
C1—C11—C16—C15 | 175.14 (10) | C46—C41—C42—C43 | 2.0 (2) |
C12—C11—C16—C31 | 179.47 (10) | C3—C41—C42—C43 | −178.37 (13) |
C1—C11—C16—C31 | −4.47 (16) | C41—C42—C43—C44 | −0.3 (2) |
C15—C14—C21—C22 | 131.87 (11) | C42—C43—C44—C45 | −1.7 (2) |
C13—C14—C21—C22 | −45.60 (15) | C42—C43—C44—C5 | 178.37 (15) |
C15—C14—C21—C26 | −45.62 (15) | C43—C44—C45—C46 | 1.9 (2) |
C13—C14—C21—C26 | 136.91 (11) | C5—C44—C45—C46 | −178.15 (13) |
C26—C21—C22—C23 | 0.24 (16) | C44—C45—C46—C41 | −0.2 (2) |
C14—C21—C22—C23 | −177.31 (10) | C42—C41—C46—C45 | −1.7 (2) |
C21—C22—C23—C24 | −0.74 (16) | C3—C41—C46—C45 | 178.59 (12) |
C22—C23—C24—F1 | −179.24 (10) |
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4B···F1i | 0.98 | 2.46 | 3.3756 (14) | 156 |
C25—H25···O1ii | 0.95 | 2.43 | 3.2812 (15) | 149 |
Symmetry codes: (i) x+1, y+1, z; (ii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C29H22F2O2 |
Mr | 440.47 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 200 |
a, b, c (Å) | 6.9020 (3), 11.3965 (6), 14.8362 (8) |
α, β, γ (°) | 96.177 (2), 93.381 (2), 106.446 (2) |
V (Å3) | 1107.85 (10) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.36 × 0.24 × 0.11 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 20122, 5516, 4020 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.669 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.109, 1.06 |
No. of reflections | 5516 |
No. of parameters | 300 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.24 |
Computer programs: APEX2 (Bruker, 2010), SAINT (Bruker, 2010), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4B···F1i | 0.98 | 2.46 | 3.3756 (14) | 156.1 |
C25—H25···O1ii | 0.95 | 2.43 | 3.2812 (15) | 148.7 |
Symmetry codes: (i) x+1, y+1, z; (ii) x, y−1, z. |
Acknowledgements
BN thanks the UGC for financial assistance through the SAP and a BSR one-time grants for the purchase of chemicals. SS thanks Mangalore University for access to 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 view of pharmacological importance of terphenyls (Liu, 2006) and chalcones, and in continuation of our works on the synthesis of various derivatives of 4,4'-difluoro chalcone (Samshuddin et al., 2011a,b; Fun et al., 2010a,b; Jasinski et al., 2010a,b; Baktir et al., 2011a,b), the molecular and crystal structure of the title compound (I) is reported.
In (I) (Fig. 1), the C=C double of the Michael system is (E)-configured. The least-squares planes defined by the carbon atoms of the para-fluoro phenyl rings of the terphenyl moiety and its central phenyl ring enclose angles of 41.70 (6)° and 46.72 (6)°, respectively.
In the crystal structure, intermolecular C–H···O and C–H···F contacts are present (Table 1). While the C–H···O contacts are apparent between the ketonic oxygen atom and one of the phenyl-bonded hydrogen atoms, the C–H···F contacts are supported by one of the hydrogen atoms of the methoxy substituent on the terphenyl's central phenyl group. In terms of graph-set analysis (Etter et al., 1990; Bernstein et al., 1995), the C–H···O contacts necessitate a C11(10) descriptor on the unitary level and the C–H···F contacts necessitate a C11(11) descriptor on the same level. These two antidromic chains connect the molecules to planes perpendicular to the crystallographic c axis. The shortest intercentroid distance between two aromatic systems was found at 3.6364 (7) Å and is apparent between one of the para-fluoro phenyl moieties and its symmetry-generated equivalent. The packing of the title compound in the crystal structure is shown in Figure 2.