organic compounds
Propane-2,2-diyl di-p-phenylene dibenzoate
aDepartment of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, PO Box 180, HR-10002 Zagreb, Croatia, and bDepartment of Chemistry, Laboratory of General and Inorganic Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
*Correspondence e-mail: judas@chem.pmf.hr
The V-shaped propeller-like molecule of the title compound, C29H24O4, does not exhibit crystallographic twofold symmetry as the two benzene rings are twisted asymmetrically with respect to both the central propyl plane and the benzoyloxy groups [4.6 (2), 43.6 (2)° and 45.07 (8), 69.50 (8)°]. In the centrosymmetrically related molecules form a dimer through C—H⋯π intermolecular interactions.
Related literature
For related literature, see: Perez & Scaringe (1987); Toda et al. (1988); Bocelli & Cantoni (1989); Casarini et al. (1995); Williams (1966). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: CrysAlis CCD (Oxford Diffraction, 2003); cell CrysAlis RED (Oxford Diffraction, 2003); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and POV-RAY (Persistence of Vision, 2004); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536807065531/ci2535sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807065531/ci2535Isup2.hkl
Bisphenol A (500 mg, 2.19 mmol) was dissolved in an aqueous solution (3.0 ml) of 2 M sodium hydroxide (6 mmol) and benzoyl chloride (508 µL, 616 mg, 4.38 mmol) was added to it. The reaction mixture was vigorously shaken for 20 min. The resulting white solid was filtered and rinsed with cold methanol and dried. Single crystals of the title compound were obtained by slow evaporation of a toluene solution.
H atoms were placed in calculated positions and included in the
using the riding-model approximation, with C—H distances of 0.93 Å for phenyl and 0.96 Å for methyl groups, and with Uiso(H) = 1.2Ueq(C) or 1.2Ueq(Cmethyl). A rotating group model was used for the methyl groups.The title compound was synthesized as a part of our work on organizing a workshop on parallel synthesis and combinatorial chemistry. The title compound belongs to the class of compounds that can be used for isomeric separation by crystalline inclusion or for studies on isomeric selectivity, host design and molecular recognition.
The molecular structure of the title compound is shown in Fig. 1. The V-shaped propeller-like molecule consists of several parts: central propyl part (C1—C3), two benzene rings (C4—C9 and C10—C15) and two benzoyloxy groups (O1/O2/C16—C22 and O3/O4/C23—C29). All bond lengths and angles fall within normal ranges (Allen et al., 1987).
The molecule does not exhibit twofold symmetry as there is a characteristic asymmetric twist of the two benzene rings with respect to the C1/C2/C3 plane, which is best described by the torsion angles C5—C4—C2—C1 and C1—C2—C10—C11 of -4.6 (2)° and 43.6 (2)°, respectively. Further, the benzoyloxy moieties are also twisted asymmetrically with respect to the attached benzene rings. The dihedral angle between the C4—C9 and C17—C22 planes is 45.07 (8)° and that between the C10—C15 and C24—C29 planes is 69.50 (8)°.
In the crystal, the centrosymmetrically related molecules form a dimeric pair through C—H···π intermolecular interactions involving the C26—H26 group and the C10—C15 benzene ring (centroid Cg1) (Table 1).
For related literature, see: Perez & Scaringe (1987); Toda et al. (1988); Bocelli & Cantoni (1989); Casarini et al. (1995); Williams (1966). For bond-length data, see: Allen et al. (1987)
Data collection: CrysAlis CCD (Oxford Diffraction, 2003); cell
CrysAlis RED (Oxford Diffraction, 2003); data reduction: CrysAlis RED (Oxford Diffraction, 2003); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and POVRay (Persistence of Vision, 2004); software used to prepare material for publication: WinGX (Farrugia, 1999).C29H24O4 | F(000) = 920 |
Mr = 436.48 | Dx = 1.263 Mg m−3 |
Monoclinic, P21/c | Melting point: 435 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 8.7298 (2) Å | Cell parameters from 238 reflections |
b = 21.4202 (4) Å | θ = 8.4–23.2° |
c = 12.6693 (3) Å | µ = 0.08 mm−1 |
β = 104.291 (2)° | T = 293 K |
V = 2295.77 (9) Å3 | Prism, colourless |
Z = 4 | 0.68 × 0.46 × 0.23 mm |
Oxford Diffraction Xcalibur CCD diffractometer | 2427 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.023 |
Graphite monochromator | θmax = 25.0°, θmin = 3.7° |
ω scans | h = −10→10 |
23733 measured reflections | k = −25→25 |
4033 independent reflections | l = −15→15 |
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 = 1.03 | w = 1/[σ2(Fo2) + (0.0623P)2] where P = (Fo2 + 2Fc2)/3 |
4033 reflections | (Δ/σ)max = 0.001 |
300 parameters | Δρmax = 0.14 e Å−3 |
0 restraints | Δρmin = −0.15 e Å−3 |
C29H24O4 | V = 2295.77 (9) Å3 |
Mr = 436.48 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 8.7298 (2) Å | µ = 0.08 mm−1 |
b = 21.4202 (4) Å | T = 293 K |
c = 12.6693 (3) Å | 0.68 × 0.46 × 0.23 mm |
β = 104.291 (2)° |
Oxford Diffraction Xcalibur CCD diffractometer | 2427 reflections with I > 2σ(I) |
23733 measured reflections | Rint = 0.023 |
4033 independent reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.109 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.14 e Å−3 |
4033 reflections | Δρmin = −0.15 e Å−3 |
300 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 | ||
O1 | −0.25033 (15) | 0.50560 (5) | 0.89440 (10) | 0.0753 (4) | |
O2 | −0.13081 (17) | 0.42428 (6) | 0.83756 (12) | 0.0937 (5) | |
O3 | 0.41160 (13) | 0.59632 (5) | 0.44375 (9) | 0.0644 (3) | |
O4 | 0.41701 (15) | 0.68081 (6) | 0.34023 (10) | 0.0768 (4) | |
C1 | 0.0091 (2) | 0.75543 (7) | 0.71258 (14) | 0.0723 (5) | |
H1A | 0.1022 | 0.7438 | 0.7670 | 0.108* | |
H1B | −0.0694 | 0.7708 | 0.7474 | 0.108* | |
H1C | 0.0352 | 0.7875 | 0.6670 | 0.108* | |
C2 | −0.05579 (18) | 0.69840 (7) | 0.64295 (12) | 0.0530 (4) | |
C3 | −0.2072 (2) | 0.71965 (8) | 0.56017 (15) | 0.0752 (5) | |
H3A | −0.1815 | 0.7516 | 0.5142 | 0.113* | |
H3B | −0.2809 | 0.7359 | 0.5983 | 0.113* | |
H3C | −0.2538 | 0.6847 | 0.5163 | 0.113* | |
C4 | −0.09977 (17) | 0.64530 (7) | 0.71197 (12) | 0.0503 (4) | |
C5 | −0.0719 (2) | 0.64800 (8) | 0.82398 (14) | 0.0681 (5) | |
H5 | −0.0208 | 0.6827 | 0.8605 | 0.082* | |
C6 | −0.1179 (2) | 0.60034 (8) | 0.88348 (15) | 0.0730 (5) | |
H6 | −0.0981 | 0.6033 | 0.9589 | 0.088* | |
C7 | −0.1922 (2) | 0.54922 (7) | 0.83096 (15) | 0.0594 (4) | |
C8 | −0.2206 (2) | 0.54453 (8) | 0.72020 (15) | 0.0696 (5) | |
H8 | −0.2717 | 0.5096 | 0.6842 | 0.084* | |
C9 | −0.1726 (2) | 0.59194 (8) | 0.66261 (14) | 0.0648 (5) | |
H9 | −0.1900 | 0.5879 | 0.5875 | 0.078* | |
C10 | 0.06761 (19) | 0.67327 (6) | 0.58543 (12) | 0.0492 (4) | |
C11 | 0.2245 (2) | 0.66805 (7) | 0.64163 (13) | 0.0611 (5) | |
H11 | 0.2542 | 0.6811 | 0.7138 | 0.073* | |
C12 | 0.3385 (2) | 0.64411 (7) | 0.59432 (14) | 0.0625 (5) | |
H12 | 0.4432 | 0.6414 | 0.6340 | 0.075* | |
C13 | 0.2961 (2) | 0.62455 (7) | 0.48917 (13) | 0.0528 (4) | |
C14 | 0.1429 (2) | 0.62839 (8) | 0.43036 (14) | 0.0664 (5) | |
H14 | 0.1144 | 0.6146 | 0.3585 | 0.080* | |
C15 | 0.0302 (2) | 0.65297 (8) | 0.47874 (14) | 0.0652 (5) | |
H15 | −0.0739 | 0.6559 | 0.4380 | 0.078* | |
C16 | −0.2158 (2) | 0.44437 (8) | 0.89067 (14) | 0.0623 (5) | |
C17 | −0.29534 (18) | 0.40654 (7) | 0.95880 (12) | 0.0529 (4) | |
C18 | −0.37050 (19) | 0.43330 (8) | 1.03155 (13) | 0.0603 (4) | |
H18 | −0.3700 | 0.4764 | 1.0401 | 0.072* | |
C19 | −0.4462 (2) | 0.39608 (9) | 1.09129 (15) | 0.0706 (5) | |
H19 | −0.4965 | 0.4141 | 1.1405 | 0.085* | |
C20 | −0.4477 (2) | 0.33262 (9) | 1.07866 (15) | 0.0704 (5) | |
H20 | −0.5011 | 0.3077 | 1.1180 | 0.084* | |
C21 | −0.3711 (2) | 0.30582 (8) | 1.00863 (15) | 0.0745 (5) | |
H21 | −0.3699 | 0.2626 | 1.0017 | 0.089* | |
C22 | −0.2957 (2) | 0.34237 (8) | 0.94838 (15) | 0.0692 (5) | |
H22 | −0.2445 | 0.3239 | 0.9002 | 0.083* | |
C23 | 0.46431 (19) | 0.62946 (8) | 0.36846 (13) | 0.0545 (4) | |
C24 | 0.58527 (18) | 0.59521 (7) | 0.32854 (13) | 0.0533 (4) | |
C25 | 0.6445 (2) | 0.53766 (8) | 0.36993 (15) | 0.0678 (5) | |
H25 | 0.6056 | 0.5185 | 0.4239 | 0.081* | |
C26 | 0.7605 (2) | 0.50891 (8) | 0.33132 (19) | 0.0839 (6) | |
H26 | 0.8003 | 0.4705 | 0.3596 | 0.101* | |
C27 | 0.8177 (2) | 0.53652 (9) | 0.25142 (18) | 0.0800 (6) | |
H27 | 0.8959 | 0.5167 | 0.2256 | 0.096* | |
C28 | 0.7604 (2) | 0.59323 (10) | 0.20925 (15) | 0.0748 (5) | |
H28 | 0.7989 | 0.6116 | 0.1545 | 0.090* | |
C29 | 0.6450 (2) | 0.62308 (8) | 0.24852 (14) | 0.0643 (5) | |
H29 | 0.6075 | 0.6619 | 0.2211 | 0.077* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0976 (10) | 0.0520 (7) | 0.0952 (9) | 0.0053 (6) | 0.0600 (8) | 0.0114 (6) |
O2 | 0.1152 (11) | 0.0755 (8) | 0.1173 (11) | 0.0196 (7) | 0.0800 (10) | 0.0121 (8) |
O3 | 0.0735 (8) | 0.0576 (7) | 0.0742 (8) | 0.0104 (5) | 0.0414 (6) | 0.0063 (6) |
O4 | 0.0900 (9) | 0.0587 (8) | 0.0953 (9) | 0.0110 (6) | 0.0489 (8) | 0.0088 (7) |
C1 | 0.0843 (14) | 0.0539 (10) | 0.0911 (13) | −0.0044 (9) | 0.0453 (11) | −0.0076 (9) |
C2 | 0.0567 (10) | 0.0476 (9) | 0.0599 (10) | 0.0015 (7) | 0.0243 (8) | 0.0020 (8) |
C3 | 0.0714 (13) | 0.0776 (12) | 0.0822 (13) | 0.0196 (9) | 0.0294 (10) | 0.0175 (10) |
C4 | 0.0482 (9) | 0.0530 (9) | 0.0547 (10) | −0.0010 (7) | 0.0219 (8) | −0.0030 (7) |
C5 | 0.0836 (13) | 0.0649 (11) | 0.0604 (11) | −0.0192 (9) | 0.0263 (10) | −0.0095 (9) |
C6 | 0.0971 (15) | 0.0724 (12) | 0.0570 (11) | −0.0095 (10) | 0.0332 (10) | −0.0013 (10) |
C7 | 0.0646 (11) | 0.0518 (10) | 0.0726 (12) | 0.0009 (8) | 0.0375 (9) | 0.0051 (9) |
C8 | 0.0824 (13) | 0.0571 (10) | 0.0730 (13) | −0.0190 (9) | 0.0265 (10) | −0.0072 (9) |
C9 | 0.0796 (13) | 0.0633 (11) | 0.0544 (10) | −0.0125 (9) | 0.0219 (9) | −0.0053 (9) |
C10 | 0.0541 (10) | 0.0454 (9) | 0.0523 (9) | 0.0001 (7) | 0.0211 (8) | 0.0036 (7) |
C11 | 0.0635 (12) | 0.0717 (11) | 0.0493 (9) | 0.0095 (9) | 0.0163 (9) | −0.0046 (8) |
C12 | 0.0528 (10) | 0.0734 (11) | 0.0609 (11) | 0.0091 (8) | 0.0135 (9) | 0.0005 (9) |
C13 | 0.0570 (11) | 0.0495 (9) | 0.0586 (11) | 0.0047 (8) | 0.0268 (9) | 0.0025 (8) |
C14 | 0.0669 (13) | 0.0831 (12) | 0.0537 (10) | −0.0057 (9) | 0.0239 (10) | −0.0145 (9) |
C15 | 0.0529 (11) | 0.0858 (12) | 0.0585 (11) | −0.0013 (9) | 0.0166 (9) | −0.0089 (9) |
C16 | 0.0648 (12) | 0.0567 (11) | 0.0724 (12) | 0.0062 (9) | 0.0305 (10) | 0.0038 (9) |
C17 | 0.0521 (10) | 0.0501 (9) | 0.0593 (10) | 0.0030 (7) | 0.0191 (8) | 0.0036 (8) |
C18 | 0.0692 (11) | 0.0515 (9) | 0.0652 (11) | 0.0057 (8) | 0.0263 (9) | 0.0034 (8) |
C19 | 0.0756 (13) | 0.0744 (13) | 0.0702 (12) | 0.0073 (10) | 0.0339 (10) | 0.0103 (10) |
C20 | 0.0711 (13) | 0.0700 (13) | 0.0709 (12) | −0.0083 (9) | 0.0192 (10) | 0.0171 (10) |
C21 | 0.0941 (14) | 0.0502 (10) | 0.0807 (13) | −0.0034 (9) | 0.0246 (12) | 0.0034 (9) |
C22 | 0.0837 (13) | 0.0558 (11) | 0.0751 (12) | 0.0070 (9) | 0.0328 (10) | −0.0006 (9) |
C23 | 0.0582 (10) | 0.0507 (10) | 0.0582 (10) | −0.0061 (8) | 0.0208 (8) | −0.0047 (8) |
C24 | 0.0506 (10) | 0.0542 (10) | 0.0594 (10) | −0.0057 (7) | 0.0219 (8) | −0.0098 (8) |
C25 | 0.0724 (12) | 0.0564 (11) | 0.0862 (13) | −0.0029 (9) | 0.0415 (10) | −0.0033 (9) |
C26 | 0.0813 (14) | 0.0607 (11) | 0.1244 (17) | 0.0049 (10) | 0.0533 (13) | −0.0052 (11) |
C27 | 0.0685 (13) | 0.0770 (13) | 0.1078 (16) | −0.0086 (10) | 0.0469 (12) | −0.0285 (12) |
C28 | 0.0671 (13) | 0.0954 (15) | 0.0715 (12) | −0.0142 (11) | 0.0355 (10) | −0.0119 (11) |
C29 | 0.0612 (11) | 0.0725 (11) | 0.0636 (11) | −0.0043 (9) | 0.0239 (9) | −0.0004 (9) |
O1—C16 | 1.3492 (19) | C12—C13 | 1.358 (2) |
O1—C7 | 1.4064 (18) | C12—H12 | 0.93 |
O2—C16 | 1.1981 (18) | C13—C14 | 1.363 (2) |
O3—C23 | 1.3574 (18) | C14—C15 | 1.385 (2) |
O3—C13 | 1.4144 (17) | C14—H14 | 0.93 |
O4—C23 | 1.1980 (18) | C15—H15 | 0.93 |
C1—C2 | 1.531 (2) | C16—C17 | 1.476 (2) |
C1—H1A | 0.96 | C17—C18 | 1.381 (2) |
C1—H1B | 0.96 | C17—C22 | 1.381 (2) |
C1—H1C | 0.96 | C18—C19 | 1.375 (2) |
C2—C10 | 1.539 (2) | C18—H18 | 0.93 |
C2—C4 | 1.540 (2) | C19—C20 | 1.368 (2) |
C2—C3 | 1.540 (2) | C19—H19 | 0.93 |
C3—H3A | 0.96 | C20—C21 | 1.363 (2) |
C3—H3B | 0.96 | C20—H20 | 0.93 |
C3—H3C | 0.96 | C21—C22 | 1.370 (2) |
C4—C9 | 1.381 (2) | C21—H21 | 0.93 |
C4—C5 | 1.380 (2) | C22—H22 | 0.93 |
C5—C6 | 1.386 (2) | C23—C24 | 1.474 (2) |
C5—H5 | 0.93 | C24—C29 | 1.384 (2) |
C6—C7 | 1.360 (2) | C24—C25 | 1.389 (2) |
C6—H6 | 0.93 | C25—C26 | 1.374 (2) |
C7—C8 | 1.367 (2) | C25—H25 | 0.93 |
C8—C9 | 1.375 (2) | C26—C27 | 1.368 (3) |
C8—H8 | 0.93 | C26—H26 | 0.93 |
C9—H9 | 0.93 | C27—C28 | 1.371 (2) |
C10—C15 | 1.380 (2) | C27—H27 | 0.93 |
C10—C11 | 1.383 (2) | C28—C29 | 1.385 (2) |
C11—C12 | 1.381 (2) | C28—H28 | 0.93 |
C11—H11 | 0.93 | C29—H29 | 0.93 |
C16—O1—C7 | 120.72 (12) | C14—C13—O3 | 120.34 (15) |
C23—O3—C13 | 117.50 (12) | C13—C14—C15 | 119.28 (16) |
C2—C1—H1A | 109.5 | C13—C14—H14 | 120.4 |
C2—C1—H1B | 109.5 | C15—C14—H14 | 120.4 |
H1A—C1—H1B | 109.5 | C10—C15—C14 | 122.06 (17) |
C2—C1—H1C | 109.5 | C10—C15—H15 | 119.0 |
H1A—C1—H1C | 109.5 | C14—C15—H15 | 119.0 |
H1B—C1—H1C | 109.5 | O2—C16—O1 | 122.91 (15) |
C1—C2—C10 | 110.44 (13) | O2—C16—C17 | 125.26 (15) |
C1—C2—C4 | 111.76 (12) | O1—C16—C17 | 111.84 (14) |
C10—C2—C4 | 108.21 (11) | C18—C17—C22 | 119.12 (15) |
C1—C2—C3 | 106.85 (13) | C18—C17—C16 | 122.13 (14) |
C10—C2—C3 | 111.38 (13) | C22—C17—C16 | 118.74 (14) |
C4—C2—C3 | 108.22 (13) | C19—C18—C17 | 119.90 (15) |
C2—C3—H3A | 109.5 | C19—C18—H18 | 120.0 |
C2—C3—H3B | 109.5 | C17—C18—H18 | 120.0 |
H3A—C3—H3B | 109.5 | C20—C19—C18 | 120.24 (16) |
C2—C3—H3C | 109.5 | C20—C19—H19 | 119.9 |
H3A—C3—H3C | 109.5 | C18—C19—H19 | 119.9 |
H3B—C3—H3C | 109.5 | C21—C20—C19 | 120.16 (16) |
C9—C4—C5 | 116.42 (14) | C21—C20—H20 | 119.9 |
C9—C4—C2 | 120.38 (14) | C19—C20—H20 | 119.9 |
C5—C4—C2 | 123.19 (14) | C20—C21—C22 | 120.16 (16) |
C4—C5—C6 | 121.80 (16) | C20—C21—H21 | 119.9 |
C4—C5—H5 | 119.1 | C22—C21—H21 | 119.9 |
C6—C5—H5 | 119.1 | C21—C22—C17 | 120.39 (16) |
C7—C6—C5 | 119.62 (16) | C21—C22—H22 | 119.8 |
C7—C6—H6 | 120.2 | C17—C22—H22 | 119.8 |
C5—C6—H6 | 120.2 | O4—C23—O3 | 122.57 (14) |
C6—C7—C8 | 120.34 (15) | O4—C23—C24 | 125.30 (15) |
C6—C7—O1 | 116.81 (15) | O3—C23—C24 | 112.12 (14) |
C8—C7—O1 | 122.56 (16) | C29—C24—C25 | 119.14 (15) |
C7—C8—C9 | 119.25 (16) | C29—C24—C23 | 117.88 (15) |
C7—C8—H8 | 120.4 | C25—C24—C23 | 122.95 (15) |
C9—C8—H8 | 120.4 | C26—C25—C24 | 120.12 (16) |
C8—C9—C4 | 122.53 (16) | C26—C25—H25 | 119.9 |
C8—C9—H9 | 118.7 | C24—C25—H25 | 119.9 |
C4—C9—H9 | 118.7 | C27—C26—C25 | 120.34 (19) |
C15—C10—C11 | 116.33 (14) | C27—C26—H26 | 119.8 |
C15—C10—C2 | 123.36 (15) | C25—C26—H26 | 119.8 |
C11—C10—C2 | 120.28 (14) | C26—C27—C28 | 120.43 (17) |
C12—C11—C10 | 122.32 (15) | C26—C27—H27 | 119.8 |
C12—C11—H11 | 118.8 | C28—C27—H27 | 119.8 |
C10—C11—H11 | 118.8 | C27—C28—C29 | 119.79 (17) |
C13—C12—C11 | 119.27 (16) | C27—C28—H28 | 120.1 |
C13—C12—H12 | 120.4 | C29—C28—H28 | 120.1 |
C11—C12—H12 | 120.4 | C24—C29—C28 | 120.17 (17) |
C12—C13—C14 | 120.73 (15) | C24—C29—H29 | 119.9 |
C12—C13—O3 | 118.80 (15) | C28—C29—H29 | 119.9 |
D—H···A | D—H | H···A | D···A | D—H···A |
C26—H26···Cg2i | 0.93 | 2.86 | 3.743 (2) | 160 |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C29H24O4 |
Mr | 436.48 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 8.7298 (2), 21.4202 (4), 12.6693 (3) |
β (°) | 104.291 (2) |
V (Å3) | 2295.77 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.68 × 0.46 × 0.23 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur CCD diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 23733, 4033, 2427 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.109, 1.03 |
No. of reflections | 4033 |
No. of parameters | 300 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.14, −0.15 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2003), CrysAlis RED (Oxford Diffraction, 2003), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 for Windows (Farrugia, 1997) and POVRay (Persistence of Vision, 2004), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
C26—H26···Cg2i | 0.93 | 2.86 | 3.743 (2) | 160 |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Acknowledgements
The financial support by the Ministry of Science, Education and Sport of the Republic of Croatia is gratefully acknowledged (grant Nos. 098-0982914-2935 and 119-1193079-1084).
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.
The title compound was synthesized as a part of our work on organizing a workshop on parallel synthesis and combinatorial chemistry. The title compound belongs to the class of compounds that can be used for isomeric separation by crystalline inclusion or for studies on isomeric selectivity, host design and molecular recognition.
The molecular structure of the title compound is shown in Fig. 1. The V-shaped propeller-like molecule consists of several parts: central propyl part (C1—C3), two benzene rings (C4—C9 and C10—C15) and two benzoyloxy groups (O1/O2/C16—C22 and O3/O4/C23—C29). All bond lengths and angles fall within normal ranges (Allen et al., 1987).
The molecule does not exhibit twofold symmetry as there is a characteristic asymmetric twist of the two benzene rings with respect to the C1/C2/C3 plane, which is best described by the torsion angles C5—C4—C2—C1 and C1—C2—C10—C11 of -4.6 (2)° and 43.6 (2)°, respectively. Further, the benzoyloxy moieties are also twisted asymmetrically with respect to the attached benzene rings. The dihedral angle between the C4—C9 and C17—C22 planes is 45.07 (8)° and that between the C10—C15 and C24—C29 planes is 69.50 (8)°.
In the crystal, the centrosymmetrically related molecules form a dimeric pair through C—H···π intermolecular interactions involving the C26—H26 group and the C10—C15 benzene ring (centroid Cg1) (Table 1).