organic compounds
4-[4-(Heptyloxy)benzoyloxy]phenyl 2-oxo-7-trifluoromethyl-2H-chromene-3-carboxylate
aDepartment of Physics, Yuvaraja's College (Constituent College), University of Mysore Mysore, Karnataka 570 005, India, bDepartment of Chemistry Kuvempu University, Shankaraghatta Shimoga, Karnataka, India, cDepartment of Studies and Research in Chemistry, U.C.S, Tumkur University, Tumkur, Karnataka 572 103, India, and dDepartment of Studies and Research in Chemistry, Tumkur University, Tumkur, Karnataka 572 103, India
*Correspondence e-mail: palaksha.bspm@gmail.com
The title compound, C31H27F3O7, is a and exhibits enantiotropic SmA and transitions. In the crystal, the the 2H-chromene ring system makes dihedral angles of 54.46 (17) and 7.79 (16)°, respectively, with the central benzene ring and 4-(heptyloxy)benzene ring. The three F atoms of the –CF3 group are disordered over two sets of sites, with an occupancy ratio of 0.62 (3):0.38 (3). The crystal structre features two pairs of C—H⋯O hydrogen bonds, which form inversion dimers and generate R22(10) and R22(30) ring patterns. C—H⋯O interactions along [100] and C—H⋯π interactions futher consolidate the packing, leading to a three-dimensional network.
Related literature
For similar structures, see: Palakshamurthy, Sreenivasa et al. (2013), Palakshamurthy, Devarajegowda et al. (2013). For graph-set notation for hydrogen bonds, see: Bernstein et al. (1995).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell APEX2 and SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus and XPREP (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536813020679/kj2229sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813020679/kj2229Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813020679/kj2229Isup3.cml
A mixture of 7-(trifluoromethyl)-2-oxo-2H-chromene-3-carboxylic acid (258 mg, 0.01 mmol), 4-hydroxyphenyl 4-(heptyloxy)benzoate (358 mg, 0.01 mmol), N,N-dicyclohexylcarbodiimide (DCC) (210 mg, 0.012 mmol) and catalytic quantity of dimethylaminopyridimidine with anhydrous tetrahydrofuran (5 ml) was stirred for 24hrs at room temperature. The N,N-dicyclohexylurea formed was filtered off and the filtrate was diluted with dichloromethane (25 ml). This solution was washed successively with water (2 x 30 ml), 5% aqueous acetic acid (3 x 50 ml), water (3 x 50ml) and was then dried (Na2SO4). The residue obtained on removal of solvent was chromatographed on silica gel and eluted with chloroform as an
Removal of solvent from the afforded a white solid material which was crystallized repeatedly from ethanol to get colourless blocks.The H atoms bound to carbon were positioned with idealized geometry using a riding model with d(C–H) = 0.93- 0.97 Å. All C–H atoms were refined with isotropic displacement parameters set to 1.2–1.5 Ueq(C). The F1, F2, and F3 fluorine atoms of the –CF3 group were disordered over two sites and refined with site occupancy factors 0.62 (3):0.38 (3).
Data collection: APEX2 (Bruker, 2009); cell
APEX2 and SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus and XPREP (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. Molecular structure of the title compound, showing displacement ellipsoids drawn at the 50% probability level. Only the major component of the disordered CF3 group is shown. | |
Fig. 2. Crystal packing of the title compound with hydrogen bonds drawn as dashed lines. | |
Fig. 3. Packing of the title compound. C—H···π interactions are shown as dashed lines. |
C31H27F3O7 | F(000) = 592 |
Mr = 568.53 | Blocks |
Triclinic, P1 | Dx = 1.363 Mg m−3 |
Hall symbol: -P 1 | Melting point: 434 K |
a = 5.6810 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 16.036 (2) Å | Cell parameters from 2837 reflections |
c = 16.2954 (18) Å | θ = 2.5–25° |
α = 68.940 (12)° | µ = 0.11 mm−1 |
β = 88.914 (6)° | T = 296 K |
γ = 88.486 (7)° | Block, colourless |
V = 1384.8 (3) Å3 | 0.32 × 0.24 × 0.18 mm |
Z = 2 |
Bruker APEXII CCD area-detector diffractometer | 4876 independent reflections |
Radiation source: fine-focus sealed tube | 2837 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.079 |
Detector resolution: 1.03 pixels mm-1 | θmax = 25.0°, θmin = 2.5° |
phi and ω scans | h = −6→6 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | k = −19→18 |
Tmin = 0.966, Tmax = 0.981 | l = −19→17 |
8822 measured reflections |
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)] = 0.104 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.316 | H-atom parameters constrained |
S = 0.99 | w = 1/[σ2(Fo2) + (0.1918P)2] where P = (Fo2 + 2Fc2)/3 |
4876 reflections | (Δ/σ)max < 0.001 |
399 parameters | Δρmax = 0.40 e Å−3 |
0 restraints | Δρmin = −0.42 e Å−3 |
0 constraints |
C31H27F3O7 | γ = 88.486 (7)° |
Mr = 568.53 | V = 1384.8 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.6810 (3) Å | Mo Kα radiation |
b = 16.036 (2) Å | µ = 0.11 mm−1 |
c = 16.2954 (18) Å | T = 296 K |
α = 68.940 (12)° | 0.32 × 0.24 × 0.18 mm |
β = 88.914 (6)° |
Bruker APEXII CCD area-detector diffractometer | 4876 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | 2837 reflections with I > 2σ(I) |
Tmin = 0.966, Tmax = 0.981 | Rint = 0.079 |
8822 measured reflections |
R[F2 > 2σ(F2)] = 0.104 | 0 restraints |
wR(F2) = 0.316 | H-atom parameters constrained |
S = 0.99 | Δρmax = 0.40 e Å−3 |
4876 reflections | Δρmin = −0.42 e Å−3 |
399 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 | Occ. (<1) | |
C1 | 0.5018 (9) | 1.1195 (3) | 0.0428 (3) | 0.0728 (13) | |
C2 | 0.4321 (7) | 1.0781 (3) | 0.1360 (3) | 0.0538 (10) | |
C3 | 0.2160 (7) | 1.1040 (3) | 0.1631 (3) | 0.0580 (10) | |
H3 | 0.1172 | 1.1448 | 0.1225 | 0.070* | |
C4 | 0.1518 (6) | 1.0687 (2) | 0.2499 (3) | 0.0519 (10) | |
H4 | 0.0076 | 1.0854 | 0.2679 | 0.062* | |
C5 | 0.2991 (6) | 1.0080 (2) | 0.3119 (3) | 0.0459 (9) | |
C6 | 0.5150 (6) | 0.9843 (2) | 0.2825 (3) | 0.0470 (9) | |
C7 | 0.5806 (7) | 1.0184 (3) | 0.1946 (3) | 0.0566 (10) | |
H7 | 0.7228 | 1.0009 | 0.1758 | 0.068* | |
C8 | 0.2469 (6) | 0.9689 (2) | 0.4027 (2) | 0.0450 (9) | |
H8 | 0.1043 | 0.9838 | 0.4234 | 0.054* | |
C9 | 0.3928 (5) | 0.9114 (2) | 0.4601 (2) | 0.0442 (8) | |
C10 | 0.6252 (6) | 0.8895 (2) | 0.4300 (3) | 0.0485 (9) | |
C11 | 0.3301 (6) | 0.8718 (2) | 0.5537 (2) | 0.0446 (8) | |
C12 | 0.3494 (6) | 0.7435 (2) | 0.6811 (3) | 0.0465 (9) | |
C13 | 0.1534 (7) | 0.6919 (3) | 0.7119 (3) | 0.0547 (10) | |
H13 | 0.0419 | 0.6868 | 0.6730 | 0.066* | |
C14 | 0.1256 (6) | 0.6483 (3) | 0.8005 (3) | 0.0551 (10) | |
H14 | −0.0056 | 0.6133 | 0.8222 | 0.066* | |
C15 | 0.2911 (6) | 0.6561 (2) | 0.8575 (3) | 0.0506 (9) | |
C16 | 0.4882 (7) | 0.7071 (3) | 0.8258 (3) | 0.0566 (10) | |
H16 | 0.6005 | 0.7120 | 0.8645 | 0.068* | |
C17 | 0.5167 (6) | 0.7501 (3) | 0.7371 (3) | 0.0591 (11) | |
H17 | 0.6499 | 0.7838 | 0.7151 | 0.071* | |
C18 | 0.0998 (6) | 0.6353 (3) | 0.9943 (3) | 0.0527 (10) | |
C19 | 0.1256 (6) | 0.5916 (2) | 1.0887 (3) | 0.0481 (9) | |
C20 | −0.0520 (6) | 0.6051 (3) | 1.1441 (3) | 0.0552 (10) | |
H20 | −0.1829 | 0.6408 | 1.1195 | 0.066* | |
C21 | −0.0360 (6) | 0.5673 (3) | 1.2323 (3) | 0.0579 (10) | |
H21 | −0.1572 | 0.5764 | 1.2676 | 0.069* | |
C22 | 0.1589 (6) | 0.5149 (2) | 1.2712 (3) | 0.0482 (9) | |
C23 | 0.3373 (6) | 0.5008 (2) | 1.2179 (3) | 0.0521 (9) | |
H23 | 0.4680 | 0.4652 | 1.2430 | 0.062* | |
C24 | 0.3204 (6) | 0.5393 (2) | 1.1281 (2) | 0.0491 (9) | |
H24 | 0.4419 | 0.5303 | 1.0930 | 0.059* | |
C25 | 0.3583 (7) | 0.4275 (3) | 1.4026 (3) | 0.0586 (10) | |
H25A | 0.4969 | 0.4643 | 1.3873 | 0.070* | |
H25B | 0.3840 | 0.3777 | 1.3827 | 0.070* | |
C26 | 0.3225 (7) | 0.3932 (3) | 1.4994 (3) | 0.0633 (11) | |
H26A | 0.1929 | 0.3520 | 1.5147 | 0.076* | |
H26B | 0.2803 | 0.4427 | 1.5181 | 0.076* | |
C27 | 0.5406 (8) | 0.3461 (3) | 1.5475 (3) | 0.0638 (11) | |
H27A | 0.5867 | 0.2993 | 1.5254 | 0.077* | |
H27B | 0.6671 | 0.3886 | 1.5333 | 0.077* | |
C28 | 0.5177 (7) | 0.3050 (3) | 1.6459 (3) | 0.0624 (11) | |
H28A | 0.3880 | 0.2639 | 1.6609 | 0.075* | |
H28B | 0.4810 | 0.3517 | 1.6691 | 0.075* | |
C29 | 0.7420 (8) | 0.2550 (3) | 1.6890 (3) | 0.0666 (12) | |
H29A | 0.7791 | 0.2093 | 1.6645 | 0.080* | |
H29B | 0.8705 | 0.2966 | 1.6736 | 0.080* | |
C30 | 0.7303 (8) | 0.2118 (3) | 1.7865 (3) | 0.0759 (14) | |
H30A | 0.5981 | 0.1719 | 1.8024 | 0.091* | |
H30B | 0.7017 | 0.2576 | 1.8116 | 0.091* | |
C31 | 0.9507 (10) | 0.1598 (5) | 1.8258 (4) | 0.108 (2) | |
H31A | 0.9800 | 0.1141 | 1.8014 | 0.162* | |
H31B | 0.9312 | 0.1327 | 1.8884 | 0.162* | |
H31C | 1.0814 | 0.1994 | 1.8125 | 0.162* | |
O1 | 0.6675 (4) | 0.92522 (17) | 0.34057 (18) | 0.0549 (7) | |
O2 | 0.7777 (5) | 0.8451 (2) | 0.4762 (2) | 0.0744 (10) | |
O3 | 0.2319 (5) | 0.91399 (18) | 0.5935 (2) | 0.0646 (8) | |
O6 | −0.0516 (5) | 0.6888 (2) | 0.9571 (2) | 0.0797 (10) | |
F1 | 0.656 (4) | 1.0696 (9) | 0.0209 (8) | 0.130 (5) | 0.62 (3) |
F2 | 0.600 (4) | 1.1943 (10) | 0.0239 (8) | 0.120 (5) | 0.62 (3) |
F3 | 0.346 (2) | 1.1281 (18) | −0.0147 (10) | 0.139 (7) | 0.62 (3) |
F1A | 0.364 (7) | 1.091 (2) | −0.0042 (18) | 0.149 (11) | 0.38 (3) |
F2A | 0.731 (3) | 1.100 (2) | 0.0245 (10) | 0.143 (11) | 0.38 (3) |
F3A | 0.471 (6) | 1.2076 (13) | 0.0083 (16) | 0.140 (10) | 0.38 (3) |
O4 | 0.3862 (5) | 0.78518 (16) | 0.59002 (17) | 0.0557 (7) | |
O7 | 0.1577 (5) | 0.47897 (19) | 1.35995 (19) | 0.0611 (8) | |
O5 | 0.2751 (4) | 0.61051 (18) | 0.94774 (17) | 0.0576 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.088 (3) | 0.074 (3) | 0.056 (3) | −0.002 (3) | 0.008 (3) | −0.023 (2) |
C2 | 0.063 (2) | 0.059 (2) | 0.038 (2) | −0.0074 (18) | 0.0065 (17) | −0.0160 (18) |
C3 | 0.057 (2) | 0.058 (2) | 0.051 (3) | −0.0010 (18) | −0.0035 (18) | −0.0096 (19) |
C4 | 0.0464 (19) | 0.052 (2) | 0.051 (2) | 0.0005 (16) | 0.0053 (16) | −0.0110 (17) |
C5 | 0.0412 (17) | 0.0395 (18) | 0.054 (2) | −0.0005 (14) | 0.0032 (15) | −0.0130 (16) |
C6 | 0.0469 (19) | 0.0453 (18) | 0.047 (2) | 0.0002 (15) | 0.0064 (16) | −0.0154 (17) |
C7 | 0.052 (2) | 0.061 (2) | 0.056 (3) | −0.0052 (18) | 0.0122 (18) | −0.021 (2) |
C8 | 0.0376 (17) | 0.0443 (18) | 0.050 (2) | 0.0004 (14) | 0.0087 (15) | −0.0137 (17) |
C9 | 0.0366 (17) | 0.0465 (19) | 0.049 (2) | 0.0017 (14) | 0.0058 (15) | −0.0177 (16) |
C10 | 0.0400 (18) | 0.0465 (19) | 0.051 (2) | 0.0026 (15) | 0.0101 (16) | −0.0080 (16) |
C11 | 0.0453 (18) | 0.0428 (18) | 0.045 (2) | 0.0025 (14) | 0.0046 (15) | −0.0157 (16) |
C12 | 0.052 (2) | 0.0383 (17) | 0.047 (2) | 0.0065 (15) | 0.0048 (16) | −0.0134 (16) |
C13 | 0.056 (2) | 0.057 (2) | 0.048 (2) | −0.0072 (17) | −0.0036 (17) | −0.0152 (18) |
C14 | 0.051 (2) | 0.061 (2) | 0.047 (2) | −0.0108 (17) | 0.0033 (17) | −0.0123 (18) |
C15 | 0.052 (2) | 0.049 (2) | 0.041 (2) | 0.0089 (16) | 0.0031 (16) | −0.0065 (16) |
C16 | 0.050 (2) | 0.063 (2) | 0.055 (3) | 0.0000 (17) | −0.0044 (17) | −0.0198 (19) |
C17 | 0.053 (2) | 0.052 (2) | 0.069 (3) | −0.0066 (17) | 0.0071 (19) | −0.018 (2) |
C18 | 0.050 (2) | 0.056 (2) | 0.048 (2) | 0.0028 (17) | 0.0021 (17) | −0.0138 (18) |
C19 | 0.0479 (19) | 0.0474 (19) | 0.043 (2) | 0.0010 (15) | 0.0024 (16) | −0.0100 (16) |
C20 | 0.0459 (19) | 0.062 (2) | 0.053 (2) | 0.0130 (17) | −0.0005 (17) | −0.0158 (19) |
C21 | 0.050 (2) | 0.071 (2) | 0.050 (2) | 0.0088 (18) | 0.0098 (17) | −0.020 (2) |
C22 | 0.0475 (19) | 0.0475 (19) | 0.046 (2) | −0.0013 (15) | 0.0033 (16) | −0.0129 (16) |
C23 | 0.0414 (18) | 0.055 (2) | 0.055 (3) | 0.0092 (15) | −0.0008 (16) | −0.0157 (18) |
C24 | 0.0448 (18) | 0.058 (2) | 0.041 (2) | 0.0042 (15) | 0.0044 (15) | −0.0146 (17) |
C25 | 0.062 (2) | 0.064 (2) | 0.049 (3) | 0.0108 (18) | 0.0024 (18) | −0.0188 (19) |
C26 | 0.073 (3) | 0.069 (3) | 0.045 (3) | 0.003 (2) | 0.004 (2) | −0.017 (2) |
C27 | 0.072 (3) | 0.062 (2) | 0.056 (3) | 0.007 (2) | 0.000 (2) | −0.021 (2) |
C28 | 0.074 (3) | 0.066 (2) | 0.044 (2) | 0.008 (2) | 0.002 (2) | −0.0174 (19) |
C29 | 0.077 (3) | 0.068 (3) | 0.052 (3) | 0.010 (2) | 0.000 (2) | −0.021 (2) |
C30 | 0.076 (3) | 0.084 (3) | 0.056 (3) | 0.006 (2) | −0.003 (2) | −0.013 (2) |
C31 | 0.088 (3) | 0.150 (5) | 0.066 (4) | 0.036 (3) | −0.003 (3) | −0.017 (4) |
O1 | 0.0460 (13) | 0.0605 (16) | 0.0526 (17) | 0.0086 (11) | 0.0122 (12) | −0.0149 (13) |
O2 | 0.0458 (15) | 0.082 (2) | 0.072 (2) | 0.0167 (14) | 0.0041 (14) | −0.0008 (17) |
O3 | 0.0740 (18) | 0.0595 (16) | 0.0583 (19) | 0.0182 (13) | 0.0114 (14) | −0.0206 (14) |
O6 | 0.0733 (19) | 0.097 (2) | 0.059 (2) | 0.0362 (17) | −0.0088 (15) | −0.0179 (17) |
F1 | 0.161 (12) | 0.120 (7) | 0.103 (7) | 0.017 (7) | 0.066 (7) | −0.040 (5) |
F2 | 0.191 (13) | 0.085 (7) | 0.077 (5) | −0.064 (8) | 0.047 (7) | −0.018 (5) |
F3 | 0.124 (7) | 0.211 (18) | 0.049 (4) | −0.048 (8) | −0.016 (4) | −0.002 (8) |
F1A | 0.26 (3) | 0.142 (16) | 0.059 (12) | −0.055 (13) | 0.000 (11) | −0.048 (12) |
F2A | 0.077 (7) | 0.23 (3) | 0.047 (6) | 0.004 (10) | 0.025 (5) | 0.041 (10) |
F3A | 0.194 (19) | 0.086 (8) | 0.089 (10) | 0.059 (13) | 0.059 (12) | 0.026 (7) |
O4 | 0.0720 (17) | 0.0430 (14) | 0.0482 (17) | 0.0063 (12) | 0.0114 (13) | −0.0126 (12) |
O7 | 0.0623 (16) | 0.0725 (18) | 0.0451 (17) | 0.0126 (13) | 0.0021 (12) | −0.0179 (14) |
O5 | 0.0637 (16) | 0.0617 (16) | 0.0388 (15) | 0.0136 (12) | 0.0025 (12) | −0.0089 (12) |
C1—F2 | 1.268 (9) | C17—H17 | 0.9300 |
C1—F3 | 1.268 (14) | C18—O6 | 1.204 (4) |
C1—F1 | 1.302 (12) | C18—O5 | 1.376 (5) |
C1—F1A | 1.31 (3) | C18—O5 | 1.376 (5) |
C1—F3A | 1.328 (17) | C18—C19 | 1.451 (5) |
C1—F2A | 1.379 (18) | C19—C24 | 1.390 (5) |
C1—C2 | 1.473 (6) | C19—C20 | 1.405 (6) |
C2—C7 | 1.368 (5) | C20—C21 | 1.349 (5) |
C2—C3 | 1.399 (6) | C20—H20 | 0.9300 |
C3—C4 | 1.367 (6) | C21—C22 | 1.389 (5) |
C3—H3 | 0.9300 | C21—H21 | 0.9300 |
C4—C5 | 1.397 (5) | C22—O7 | 1.351 (5) |
C4—H4 | 0.9300 | C22—C23 | 1.389 (6) |
C5—C6 | 1.401 (5) | C23—C24 | 1.373 (5) |
C5—C8 | 1.412 (5) | C23—H23 | 0.9300 |
C6—O1 | 1.373 (4) | C24—H24 | 0.9300 |
C6—C7 | 1.385 (5) | C25—O7 | 1.425 (4) |
C7—H7 | 0.9300 | C25—C26 | 1.484 (5) |
C8—C9 | 1.334 (5) | C25—H25A | 0.9700 |
C8—H8 | 0.9300 | C25—H25B | 0.9700 |
C9—C11 | 1.467 (5) | C26—C27 | 1.512 (6) |
C9—C10 | 1.477 (5) | C26—H26A | 0.9700 |
C10—O2 | 1.197 (4) | C26—H26B | 0.9700 |
C10—O1 | 1.379 (5) | C27—C28 | 1.503 (6) |
C11—O3 | 1.212 (5) | C27—H27A | 0.9700 |
C11—O4 | 1.332 (4) | C27—H27B | 0.9700 |
C12—C17 | 1.362 (5) | C28—C29 | 1.528 (6) |
C12—C13 | 1.381 (5) | C28—H28A | 0.9700 |
C12—O4 | 1.405 (4) | C28—H28B | 0.9700 |
C13—C14 | 1.368 (5) | C29—C30 | 1.488 (6) |
C13—H13 | 0.9300 | C29—H29A | 0.9700 |
C14—C15 | 1.372 (5) | C29—H29B | 0.9700 |
C14—H14 | 0.9300 | C30—C31 | 1.505 (7) |
C15—C16 | 1.383 (5) | C30—H30A | 0.9700 |
C15—O5 | 1.390 (4) | C30—H30B | 0.9700 |
C15—O5 | 1.390 (4) | C31—H31A | 0.9600 |
C16—C17 | 1.368 (6) | C31—H31B | 0.9600 |
C16—H16 | 0.9300 | C31—H31C | 0.9600 |
F2—C1—F3 | 107.6 (10) | O6—C18—O5 | 121.0 (4) |
F2—C1—F1 | 104.7 (8) | O6—C18—C19 | 126.5 (4) |
F3—C1—F1 | 100.0 (12) | O5—C18—C19 | 112.5 (3) |
F2—C1—F1A | 130.1 (13) | O5—C18—C19 | 112.5 (3) |
F1—C1—F1A | 82.3 (17) | C24—C19—C20 | 117.6 (4) |
F3—C1—F3A | 77.9 (13) | C24—C19—C18 | 123.9 (4) |
F1—C1—F3A | 128.4 (10) | C20—C19—C18 | 118.5 (3) |
F1A—C1—F3A | 103.1 (17) | C21—C20—C19 | 121.2 (3) |
F2—C1—F2A | 77.5 (10) | C21—C20—H20 | 119.4 |
F3—C1—F2A | 118.2 (12) | C19—C20—H20 | 119.4 |
F1A—C1—F2A | 107.4 (19) | C20—C21—C22 | 120.9 (4) |
F3A—C1—F2A | 107.3 (12) | C20—C21—H21 | 119.6 |
F2—C1—C2 | 114.1 (6) | C22—C21—H21 | 119.6 |
F3—C1—C2 | 117.8 (8) | O7—C22—C23 | 124.3 (3) |
F1—C1—C2 | 111.0 (6) | O7—C22—C21 | 116.5 (3) |
F1A—C1—C2 | 108.6 (14) | C23—C22—C21 | 119.1 (4) |
F3A—C1—C2 | 115.2 (10) | C24—C23—C22 | 119.9 (3) |
F2A—C1—C2 | 114.4 (7) | C24—C23—H23 | 120.1 |
C7—C2—C3 | 121.3 (4) | C22—C23—H23 | 120.1 |
C7—C2—C1 | 120.2 (4) | C23—C24—C19 | 121.4 (4) |
C3—C2—C1 | 118.4 (4) | C23—C24—H24 | 119.3 |
C4—C3—C2 | 119.3 (3) | C19—C24—H24 | 119.3 |
C4—C3—H3 | 120.3 | O7—C25—C26 | 110.2 (3) |
C2—C3—H3 | 120.3 | O7—C25—H25A | 109.6 |
C3—C4—C5 | 121.1 (4) | C26—C25—H25A | 109.6 |
C3—C4—H4 | 119.4 | O7—C25—H25B | 109.6 |
C5—C4—H4 | 119.4 | C26—C25—H25B | 109.6 |
C4—C5—C6 | 118.0 (4) | H25A—C25—H25B | 108.1 |
C4—C5—C8 | 124.7 (3) | C25—C26—C27 | 111.9 (4) |
C6—C5—C8 | 117.3 (3) | C25—C26—H26A | 109.2 |
O1—C6—C7 | 117.9 (3) | C27—C26—H26A | 109.2 |
O1—C6—C5 | 120.6 (3) | C25—C26—H26B | 109.2 |
C7—C6—C5 | 121.5 (3) | C27—C26—H26B | 109.2 |
C2—C7—C6 | 118.7 (4) | H26A—C26—H26B | 107.9 |
C2—C7—H7 | 120.7 | C28—C27—C26 | 115.8 (4) |
C6—C7—H7 | 120.7 | C28—C27—H27A | 108.3 |
C9—C8—C5 | 123.0 (3) | C26—C27—H27A | 108.3 |
C9—C8—H8 | 118.5 | C28—C27—H27B | 108.3 |
C5—C8—H8 | 118.5 | C26—C27—H27B | 108.3 |
C8—C9—C11 | 121.1 (3) | H27A—C27—H27B | 107.4 |
C8—C9—C10 | 119.8 (3) | C27—C28—C29 | 112.5 (4) |
C11—C9—C10 | 119.1 (3) | C27—C28—H28A | 109.1 |
O2—C10—O1 | 118.2 (3) | C29—C28—H28A | 109.1 |
O2—C10—C9 | 125.7 (4) | C27—C28—H28B | 109.1 |
O1—C10—C9 | 116.0 (3) | C29—C28—H28B | 109.1 |
O3—C11—O4 | 123.4 (4) | H28A—C28—H28B | 107.8 |
O3—C11—C9 | 122.8 (3) | C30—C29—C28 | 115.2 (4) |
O4—C11—C9 | 113.7 (3) | C30—C29—H29A | 108.5 |
C17—C12—C13 | 121.2 (4) | C28—C29—H29A | 108.5 |
C17—C12—O4 | 119.0 (3) | C30—C29—H29B | 108.5 |
C13—C12—O4 | 119.7 (3) | C28—C29—H29B | 108.5 |
C14—C13—C12 | 119.1 (3) | H29A—C29—H29B | 107.5 |
C14—C13—H13 | 120.5 | C29—C30—C31 | 113.4 (5) |
C12—C13—H13 | 120.5 | C29—C30—H30A | 108.9 |
C13—C14—C15 | 120.1 (3) | C31—C30—H30A | 108.9 |
C13—C14—H14 | 120.0 | C29—C30—H30B | 108.9 |
C15—C14—H14 | 120.0 | C31—C30—H30B | 108.9 |
C14—C15—C16 | 120.4 (4) | H30A—C30—H30B | 107.7 |
C14—C15—O5 | 122.2 (3) | C30—C31—H31A | 109.5 |
C16—C15—O5 | 117.3 (3) | C30—C31—H31B | 109.5 |
C14—C15—O5 | 122.2 (3) | H31A—C31—H31B | 109.5 |
C16—C15—O5 | 117.3 (3) | C30—C31—H31C | 109.5 |
C17—C16—C15 | 119.5 (4) | H31A—C31—H31C | 109.5 |
C17—C16—H16 | 120.3 | H31B—C31—H31C | 109.5 |
C15—C16—H16 | 120.3 | C6—O1—C10 | 123.1 (3) |
C12—C17—C16 | 119.8 (3) | C11—O4—C12 | 117.5 (3) |
C12—C17—H17 | 120.1 | C22—O7—C25 | 118.3 (3) |
C16—C17—H17 | 120.1 | C18—O5—C15 | 118.6 (3) |
O6—C18—O5 | 121.0 (4) | ||
F2—C1—C2—C7 | −93.5 (14) | O5—C15—C16—C17 | 177.2 (3) |
F3—C1—C2—C7 | 139.0 (15) | C13—C12—C17—C16 | −1.9 (6) |
F1—C1—C2—C7 | 24.5 (13) | O4—C12—C17—C16 | −177.4 (3) |
F1A—C1—C2—C7 | 113 (2) | C15—C16—C17—C12 | 1.0 (6) |
F3A—C1—C2—C7 | −132 (2) | O6—C18—C19—C24 | −171.3 (4) |
F2A—C1—C2—C7 | −6.8 (19) | O5—C18—C19—C24 | 7.5 (5) |
F2—C1—C2—C3 | 84.1 (14) | O5—C18—C19—C24 | 7.5 (5) |
F3—C1—C2—C3 | −43.4 (16) | O6—C18—C19—C20 | 6.4 (6) |
F1—C1—C2—C3 | −157.9 (12) | O5—C18—C19—C20 | −174.8 (3) |
F1A—C1—C2—C3 | −69 (2) | O5—C18—C19—C20 | −174.8 (3) |
F3A—C1—C2—C3 | 46 (2) | C24—C19—C20—C21 | −1.3 (6) |
F2A—C1—C2—C3 | 170.8 (19) | C18—C19—C20—C21 | −179.1 (3) |
C7—C2—C3—C4 | −0.2 (6) | C19—C20—C21—C22 | 1.1 (6) |
C1—C2—C3—C4 | −177.7 (4) | C20—C21—C22—O7 | −179.2 (3) |
C2—C3—C4—C5 | 0.6 (6) | C20—C21—C22—C23 | −0.9 (6) |
C3—C4—C5—C6 | 0.0 (5) | O7—C22—C23—C24 | 179.1 (3) |
C3—C4—C5—C8 | 179.7 (3) | C21—C22—C23—C24 | 0.8 (6) |
C4—C5—C6—O1 | 179.7 (3) | C22—C23—C24—C19 | −1.1 (6) |
C8—C5—C6—O1 | 0.0 (5) | C20—C19—C24—C23 | 1.3 (5) |
C4—C5—C6—C7 | −1.1 (5) | C18—C19—C24—C23 | 178.9 (3) |
C8—C5—C6—C7 | 179.2 (3) | O7—C25—C26—C27 | −174.3 (3) |
C3—C2—C7—C6 | −0.9 (6) | C25—C26—C27—C28 | −177.1 (3) |
C1—C2—C7—C6 | 176.6 (4) | C26—C27—C28—C29 | 177.3 (4) |
O1—C6—C7—C2 | −179.3 (3) | C27—C28—C29—C30 | −179.4 (4) |
C5—C6—C7—C2 | 1.6 (6) | C28—C29—C30—C31 | 177.3 (5) |
C4—C5—C8—C9 | −179.7 (3) | C7—C6—O1—C10 | 177.5 (3) |
C6—C5—C8—C9 | 0.0 (5) | C5—C6—O1—C10 | −3.3 (5) |
C5—C8—C9—C11 | −179.5 (3) | O2—C10—O1—C6 | −173.3 (3) |
C5—C8—C9—C10 | 2.8 (5) | C9—C10—O1—C6 | 5.9 (5) |
C8—C9—C10—O2 | 173.4 (4) | O3—C11—O4—C12 | −6.4 (5) |
C11—C9—C10—O2 | −4.3 (6) | C9—C11—O4—C12 | 175.1 (3) |
C8—C9—C10—O1 | −5.6 (5) | C17—C12—O4—C11 | −83.4 (4) |
C11—C9—C10—O1 | 176.7 (3) | C13—C12—O4—C11 | 101.0 (4) |
C8—C9—C11—O3 | −40.1 (5) | C23—C22—O7—C25 | 4.0 (5) |
C10—C9—C11—O3 | 137.6 (4) | C21—C22—O7—C25 | −177.7 (3) |
C8—C9—C11—O4 | 138.4 (3) | C26—C25—O7—C22 | −179.4 (3) |
C10—C9—C11—O4 | −43.9 (4) | O6—C18—O5—O5 | 0.0 (10) |
C17—C12—C13—C14 | 1.4 (6) | C19—C18—O5—O5 | 0.0 (9) |
O4—C12—C13—C14 | 176.9 (3) | O6—C18—O5—C15 | 7.6 (6) |
C12—C13—C14—C15 | 0.0 (6) | O5—C18—O5—C15 | 0 (100) |
C13—C14—C15—C16 | −0.8 (6) | C19—C18—O5—C15 | −171.3 (3) |
C13—C14—C15—O5 | −177.5 (4) | C16—C15—O5—O5 | 0.0 (8) |
C13—C14—C15—O5 | −177.5 (4) | C14—C15—O5—C18 | −69.4 (5) |
C14—C15—C16—C17 | 0.4 (6) | C16—C15—O5—C18 | 113.8 (4) |
O5—C15—C16—C17 | 177.2 (3) | O5—C15—O5—C18 | 0 (100) |
Cg1 and Cg2 are the centroids of the C12–C17 and C19–C24 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···O6i | 0.93 | 2.53 | 3.313 (5) | 142 |
C8—H8···O3i | 0.93 | 2.44 | 3.277 (4) | 150 |
C16—H16···O6ii | 0.93 | 2.45 | 3.350 (5) | 163 |
C24—H24···O5 | 0.93 | 2.45 | 2.759 (5) | 100 |
C14—H14···Cg2iii | 0.93 | 2.81 | 3.517 (5) | 133 |
C23—H23···Cg1iv | 0.93 | 2.94 | 3.650 (5) | 134 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) x+1, y, z; (iii) −x+2, −y+1, −z; (iv) −x+1, −y+1, −z. |
Cg1 and Cg2 are the centroids of the C12–C17 and C19–C24 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···O6i | 0.93 | 2.53 | 3.313 (5) | 141.6 |
C8—H8···O3i | 0.93 | 2.44 | 3.277 (4) | 150.2 |
C16—H16···O6ii | 0.93 | 2.45 | 3.350 (5) | 163.4 |
C24—H24···O5 | 0.93 | 2.45 | 2.759 (5) | 99.6 |
C14—H14···Cg2iii | 0.93 | 2.81 | 3.517 (5) | 133 |
C23—H23···Cg1iv | 0.93 | 2.94 | 3.650 (5) | 134 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) x+1, y, z; (iii) −x+2, −y+1, −z; (iv) −x+1, −y+1, −z. |
Acknowledgements
The authors thank Professor T. N. Guru Row and Vijithkumar, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, for the data collection. BSPM thanks H. T. Srinivasa, Raman Research Institute, Bangalore, for his help with the characterization.
References
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555–1573. CrossRef CAS Web of Science Google Scholar
Bruker (2009). APEX2, SADABS, SAINT-Plus and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J. & Wood, P. A. (2008). J. Appl. Cryst. 41, 466–470. Web of Science CrossRef CAS IUCr Journals Google Scholar
Palakshamurthy, B. S., Devarajegowda, H. C., Srinivasa, H. T., Sreenivasa, S. & Vijithkumar, (2013). Acta Cryst. E69, o621–o622. Google Scholar
Palakshamurthy, B. S., Sreenivasa, S., Srinivasa, H. T., Roopashree, K. R. & Devarajegowda, H. C. (2013). Acta Cryst. E69, o212. CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2007). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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As a part of our continued efforts to study the structure of coumarin based liquid crystals (LC), we report herein the crystal structure of 4-(4-(heptyloxy)benzoyloxy)phenyl 7-(trifluoromethyl)-2-oxo-2H-chromene-3-carboxylate (I), and its comparision with 4-(decyloxy)phenyl 7-(trifluoromethyl)- 2-oxo-2H-chromene-3-carboxylate (II), 4-(octyloxy)phenyl 2-oxo-2H-chromene-3 –carboxylate (III) (Palakshamurthy, Sreenivasa et al., 2013; Palakshamurthy, Devarajegowda et al., 2013). The title compound, C31H27F3O7, is a liquid crystal (LC) exhibiting enantiotropic SmA, nematic phase transitions at 520.2(2.0), 522.7(2.7) on heating and at 519.6(2.0), 522.1(2.9) on cooling [The transition temperature in K and the associated enthalpy values in kJ mol-1 (in italics)] The asymmetric unit of 4-(4-(heptyloxy)benzoyloxy)phenyl 7-(trifluoromethyl)-2-oxo-2H-chromene-3-carboxylate is shown in Fig.1.The three F atoms of the –CF3 group are disordered over two sets of sites with occupancy factors 0.62 (3):0.38 (3).The dihedral angle between the 2H-chromene ring and the benzene ring A in the compound I is 54.46 (17)°, compared to the observed values of 62.97 (2)°, 21.11 (1)° in compounds II and III respectively. The crystal structre is stabilized by two pairs of C8—H8···O3 and C3—H3···O6 hydrogen bonds form inversion dimers and generate R22(10) and R22(30) ring patterns respectivly (Bernstein et al., 1995). The C16—H16···O6 contact and C—H···Cg1 (centroid of C12—C17) and C—H···Cg2 (centroid of C19—C24) interactions further strengthen the packing (Fig. 2, Fig.3).