organic compounds
8-Phenyl-16-thiapentacyclo[6.6.5.01,18.02,7.09,14]nonadeca-2,4,6,9,11,13,18-heptaene
aDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India, and bDepartment of Chemistry, Faculty of Science, Eastern University, Sri Lanka, Chenkalady, Sri Lanka
*Correspondence e-mail: eesans@yahoo.com
In the title compound, C24H18S, the dihedral angles between the phenyl ring and the two benzene rings of the anthracene moiety are 51.92 (9) and 68.24 (9)°, whereas the dihedral angle between the two anthracene benzene rings is 120.13 (9)°. The three non-aromatic six-membered rings are in boat conformations, while the five-membered ring has an on the S atom. In the crystal, there are three C—H⋯π interactions, which facilitate the packing of the molecules.
Related literature
For background to dibenzobarrelene dervatives and their applications, see: Khalil et al. (2010); Cox et al. (2013). For the synthesis of related compounds, see: Ciganek (1980); Vetter (1998). For puckering parameters, see: Cremer & Pople (1975).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 and publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536813017285/zl2554sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813017285/zl2554Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813017285/zl2554Isup3.cml
The title compound was prepared by adapting a reported procedure (Ciganek, 1980; Vetter, 1998). 10-phenyl-9-anthracenemethanol (1 mmol) obtained by reduction of the corresponding aldehyde (1 mmol) using sodium borohydride (3 mmol) and thiourea (2 mmol) were dissolved in acetone and stirred overnight with 10 ml of 5 N HCl to obtain10-phenyl-9-anthracenemethanethiol which was converted into 10-phenyl-9-anthracenemethyl propargyl sulfide through treatment with propargyl bromide. 10-Phenyl-9-anthracenemethyl propargyl sulfide was refluxed in p-xylene for 7 h (intramolecular Diels-Alder reaction) to get the title compound. Colourless crystals suitable for X-ray
were recrystallized from acetonitrile by slow evaporation over a few days (m.p: 218 °C).All H atoms on C were placed in calculated positions, guided by difference maps, with C–H bond distances of 0.93–0.97 Å. H atoms were assigned Uiso=1.2Ueq. Omitted owing to bad disagreement were the reflections (0 0 2), (2 0 0), and (1 0 2).
Thiazoles, thiophenes and their derivatives have attracted continuing interest over the years since they often exhibit various biological activities and have been investigated for the treatment of various diseases (Khalil et al., 2010). Dibenzobarrelene derivatives find application in the alignment of nematic liquid crystals. The strong coupling of the
directors to dibenzobarrelene groups is responsible for the alignment mechanism (Cox et al., 2013).The compound (Fig. 1) crystallizes in the monoclinic
Pbca. The dihedral angles between the phenyl ring and the other two benzene rings of the anthracene moiety are 51.92 (9) and 68.24 (9)°. The two aromatic rings of the anthracene moiety form a dihedral angle of 120.13 (9)° between themselves.The five-membered heterocyclic ring C14–17/S1 is in an φ = 3.9 (3)°] (Cremer & Pople, 1975). The ring C7/C8/C13/C14/C19/C24 of the three fused six-membered rings is in a boat conformation [φ = 180.31 (13)° and θ = 89.60 (12)°] with a total puckering amplitude QT of 0.8317 (18) Å. The second six-membered ring C7/C8/C13/C14/C17/C18 is also in a boat conformation [φ = 359.90 (13)° and θ = 89.16 (13)°] having a total puckering amplitude QT of 0.8160 (18) Å. The third six-membered ring C7/C14/C17/C18/C19/C24 also has the same conformation [φ = 358.83 (13)° and θ = 89.80 (13)°] and has a total puckering amplitude QT of 0.7856 (18) Å.
on S1 [There are three weak C–H···π interactions (Fig. 2) between the H atoms attached at the C2, C5 and C15 atoms and neighboring aromatic rings. The hydrogen atoms from the C2 and C5 atoms form C–H···π interactions with the C19—C24 ring of two adjacent molecules from opposite sides of the main molecule and the hydrogen attached at C15 atom has an interaction with the C8—C13 ring of a neighbouring molecule with H···π distances of 2.80, 2.76 and 2.98 Å, respectively (Table 1). The packing of molecules is dominated by these C–H···π interactions. Fig. 3 shows the packing diagram of the title compound along b axis.
For background to dibenzobarrelene dervatives and their applications, see: Khalil et al. (2010); Cox et al. (2013). For the synthesis of related compounds, see: Ciganek (1980); Vetter (1998). For puckering parameters, see: Cremer & Pople (1975).
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).Fig. 1. ORTEP view of the title compound drawn with 50% probability displacement ellipsoids for the non-H atoms. | |
Fig. 2. C—H···π interactions found in the title compound. | |
Fig. 3. Packing diagram of the compound along b axis. |
C24H18S | F(000) = 1424 |
Mr = 338.44 | Dx = 1.306 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 5274 reflections |
a = 18.8842 (11) Å | θ = 2.4–27.6° |
b = 9.5339 (4) Å | µ = 0.19 mm−1 |
c = 19.1140 (9) Å | T = 296 K |
V = 3441.3 (3) Å3 | Block, colorless |
Z = 8 | 0.30 × 0.25 × 0.20 mm |
Bruker Kappa APEXII CCD diffractometer | 3757 independent reflections |
Radiation source: fine-focus sealed tube | 2765 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
Detector resolution: 8.33 pixels mm-1 | θmax = 27.0°, θmin = 2.6° |
ω and φ scan | h = −24→20 |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | k = −11→12 |
Tmin = 0.945, Tmax = 0.963 | l = −24→24 |
22858 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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.138 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0791P)2 + 0.6172P] where P = (Fo2 + 2Fc2)/3 |
3757 reflections | (Δ/σ)max = 0.006 |
226 parameters | Δρmax = 0.18 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C24H18S | V = 3441.3 (3) Å3 |
Mr = 338.44 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 18.8842 (11) Å | µ = 0.19 mm−1 |
b = 9.5339 (4) Å | T = 296 K |
c = 19.1140 (9) Å | 0.30 × 0.25 × 0.20 mm |
Bruker Kappa APEXII CCD diffractometer | 3757 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 2765 reflections with I > 2σ(I) |
Tmin = 0.945, Tmax = 0.963 | Rint = 0.032 |
22858 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.138 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.18 e Å−3 |
3757 reflections | Δρmin = −0.26 e Å−3 |
226 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 | ||
S1 | 0.77988 (3) | 1.09442 (6) | 1.01400 (3) | 0.0562 (2) | |
C21 | 0.47261 (12) | 1.2996 (2) | 0.87474 (10) | 0.0488 (5) | |
H21 | 0.4282 | 1.3379 | 0.8657 | 0.059* | |
C22 | 0.52896 (12) | 1.3863 (2) | 0.88829 (10) | 0.0506 (5) | |
H22 | 0.5226 | 1.4830 | 0.8876 | 0.061* | |
C23 | 0.59526 (11) | 1.33134 (19) | 0.90300 (10) | 0.0432 (4) | |
H23 | 0.6334 | 1.3905 | 0.9118 | 0.052* | |
C3 | 0.38780 (12) | 0.6768 (2) | 0.83907 (12) | 0.0552 (6) | |
H3 | 0.3499 | 0.6193 | 0.8271 | 0.066* | |
C2 | 0.41860 (12) | 0.7624 (3) | 0.78966 (11) | 0.0562 (6) | |
H2 | 0.4012 | 0.7629 | 0.7441 | 0.067* | |
C1 | 0.47491 (11) | 0.8473 (2) | 0.80711 (10) | 0.0476 (5) | |
H1 | 0.4941 | 0.9065 | 0.7734 | 0.057* | |
C6 | 0.50367 (10) | 0.84613 (18) | 0.87452 (8) | 0.0352 (4) | |
C7 | 0.56618 (9) | 0.94019 (17) | 0.89155 (8) | 0.0325 (4) | |
C19 | 0.54721 (9) | 1.09806 (17) | 0.88904 (8) | 0.0324 (4) | |
C20 | 0.48144 (10) | 1.1551 (2) | 0.87441 (8) | 0.0394 (4) | |
H20 | 0.4433 | 1.0967 | 0.8644 | 0.047* | |
C16 | 0.69820 (11) | 1.0122 (2) | 1.04320 (10) | 0.0460 (5) | |
H16A | 0.7075 | 0.9194 | 1.0619 | 0.055* | |
H16B | 0.6757 | 1.0682 | 1.0792 | 0.055* | |
C17 | 0.65229 (10) | 1.00336 (17) | 0.97976 (8) | 0.0338 (4) | |
C14 | 0.67205 (10) | 1.10848 (17) | 0.92219 (9) | 0.0358 (4) | |
C24 | 0.60395 (9) | 1.18688 (18) | 0.90446 (8) | 0.0341 (4) | |
C4 | 0.41364 (11) | 0.6773 (2) | 0.90609 (12) | 0.0495 (5) | |
H4 | 0.3923 | 0.6216 | 0.9400 | 0.059* | |
C5 | 0.47154 (10) | 0.76063 (19) | 0.92374 (9) | 0.0398 (4) | |
H5 | 0.4889 | 0.7588 | 0.9693 | 0.048* | |
C18 | 0.59965 (9) | 0.91744 (17) | 0.96419 (8) | 0.0336 (4) | |
H18 | 0.5840 | 0.8483 | 0.9948 | 0.040* | |
C8 | 0.63048 (10) | 0.92721 (17) | 0.84115 (8) | 0.0342 (4) | |
C13 | 0.68638 (10) | 1.01795 (18) | 0.85762 (9) | 0.0367 (4) | |
C12 | 0.74681 (11) | 1.0184 (2) | 0.81727 (11) | 0.0492 (5) | |
H12 | 0.7839 | 1.0787 | 0.8282 | 0.059* | |
C11 | 0.75247 (13) | 0.9291 (2) | 0.76038 (11) | 0.0578 (6) | |
H11 | 0.7929 | 0.9312 | 0.7326 | 0.069* | |
C10 | 0.69867 (13) | 0.8378 (2) | 0.74485 (10) | 0.0564 (6) | |
H10 | 0.7032 | 0.7770 | 0.7071 | 0.068* | |
C9 | 0.63726 (11) | 0.8355 (2) | 0.78527 (9) | 0.0437 (5) | |
H9 | 0.6010 | 0.7728 | 0.7748 | 0.052* | |
C15 | 0.73314 (11) | 1.1988 (2) | 0.94933 (11) | 0.0493 (5) | |
H15A | 0.7151 | 1.2841 | 0.9704 | 0.059* | |
H15B | 0.7647 | 1.2240 | 0.9113 | 0.059* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0443 (3) | 0.0488 (3) | 0.0754 (4) | 0.0006 (2) | −0.0213 (3) | −0.0014 (2) |
C21 | 0.0489 (12) | 0.0560 (12) | 0.0415 (10) | 0.0226 (10) | −0.0013 (9) | 0.0015 (8) |
C22 | 0.0640 (14) | 0.0391 (10) | 0.0487 (11) | 0.0181 (10) | −0.0023 (10) | 0.0013 (8) |
C23 | 0.0525 (12) | 0.0339 (9) | 0.0432 (10) | 0.0031 (8) | −0.0014 (9) | 0.0015 (7) |
C3 | 0.0416 (12) | 0.0508 (12) | 0.0732 (14) | −0.0032 (9) | −0.0068 (10) | −0.0229 (11) |
C2 | 0.0496 (13) | 0.0706 (14) | 0.0483 (11) | 0.0040 (11) | −0.0110 (10) | −0.0191 (10) |
C1 | 0.0459 (12) | 0.0600 (12) | 0.0370 (9) | 0.0002 (10) | −0.0026 (8) | −0.0058 (8) |
C6 | 0.0364 (10) | 0.0358 (9) | 0.0335 (8) | 0.0028 (7) | 0.0006 (7) | −0.0054 (7) |
C7 | 0.0353 (9) | 0.0361 (9) | 0.0261 (8) | 0.0015 (7) | 0.0006 (6) | 0.0000 (6) |
C19 | 0.0368 (9) | 0.0366 (9) | 0.0237 (7) | 0.0056 (7) | 0.0029 (6) | 0.0011 (6) |
C20 | 0.0385 (10) | 0.0484 (10) | 0.0315 (8) | 0.0065 (8) | 0.0000 (7) | −0.0006 (7) |
C16 | 0.0518 (12) | 0.0429 (10) | 0.0433 (10) | 0.0047 (9) | −0.0123 (9) | −0.0045 (8) |
C17 | 0.0386 (10) | 0.0306 (8) | 0.0321 (8) | 0.0069 (7) | −0.0042 (7) | 0.0003 (6) |
C14 | 0.0341 (9) | 0.0302 (8) | 0.0430 (9) | 0.0024 (7) | −0.0021 (7) | 0.0024 (7) |
C24 | 0.0371 (10) | 0.0335 (9) | 0.0316 (8) | 0.0055 (7) | 0.0007 (7) | 0.0025 (6) |
C4 | 0.0443 (12) | 0.0400 (10) | 0.0641 (13) | −0.0044 (9) | 0.0030 (10) | −0.0043 (9) |
C5 | 0.0415 (11) | 0.0364 (9) | 0.0415 (9) | −0.0004 (8) | −0.0001 (8) | −0.0038 (7) |
C18 | 0.0392 (10) | 0.0326 (9) | 0.0290 (8) | 0.0021 (7) | −0.0001 (7) | 0.0023 (6) |
C8 | 0.0381 (10) | 0.0342 (9) | 0.0303 (8) | 0.0076 (7) | 0.0021 (7) | 0.0050 (7) |
C13 | 0.0375 (10) | 0.0344 (9) | 0.0384 (9) | 0.0078 (7) | 0.0020 (7) | 0.0090 (7) |
C12 | 0.0396 (11) | 0.0506 (12) | 0.0576 (12) | 0.0073 (9) | 0.0084 (9) | 0.0158 (9) |
C11 | 0.0531 (14) | 0.0686 (15) | 0.0518 (12) | 0.0231 (12) | 0.0216 (10) | 0.0156 (11) |
C10 | 0.0692 (16) | 0.0607 (13) | 0.0394 (10) | 0.0273 (12) | 0.0119 (10) | −0.0001 (9) |
C9 | 0.0518 (12) | 0.0446 (10) | 0.0349 (9) | 0.0134 (9) | −0.0005 (8) | −0.0005 (7) |
C15 | 0.0429 (12) | 0.0375 (10) | 0.0675 (13) | −0.0027 (8) | −0.0104 (10) | 0.0032 (9) |
S1—C15 | 1.816 (2) | C16—C17 | 1.493 (2) |
S1—C16 | 1.818 (2) | C16—H16A | 0.9700 |
C21—C22 | 1.372 (3) | C16—H16B | 0.9700 |
C21—C20 | 1.388 (3) | C17—C18 | 1.322 (2) |
C21—H21 | 0.9300 | C17—C14 | 1.534 (2) |
C22—C23 | 1.386 (3) | C14—C24 | 1.526 (2) |
C22—H22 | 0.9300 | C14—C15 | 1.530 (3) |
C23—C24 | 1.387 (2) | C14—C13 | 1.530 (2) |
C23—H23 | 0.9300 | C4—C5 | 1.393 (3) |
C3—C4 | 1.371 (3) | C4—H4 | 0.9300 |
C3—C2 | 1.377 (3) | C5—H5 | 0.9300 |
C3—H3 | 0.9300 | C18—H18 | 0.9300 |
C2—C1 | 1.377 (3) | C8—C9 | 1.386 (2) |
C2—H2 | 0.9300 | C8—C13 | 1.401 (3) |
C1—C6 | 1.398 (2) | C13—C12 | 1.377 (3) |
C1—H1 | 0.9300 | C12—C11 | 1.385 (3) |
C6—C5 | 1.385 (3) | C12—H12 | 0.9300 |
C6—C7 | 1.518 (2) | C11—C10 | 1.370 (3) |
C7—C18 | 1.541 (2) | C11—H11 | 0.9300 |
C7—C19 | 1.548 (2) | C10—C9 | 1.394 (3) |
C7—C8 | 1.555 (2) | C10—H10 | 0.9300 |
C19—C20 | 1.384 (2) | C9—H9 | 0.9300 |
C19—C24 | 1.397 (2) | C15—H15A | 0.9700 |
C20—H20 | 0.9300 | C15—H15B | 0.9700 |
C15—S1—C16 | 91.89 (9) | C24—C14—C15 | 115.81 (14) |
C22—C21—C20 | 120.39 (18) | C24—C14—C13 | 104.26 (14) |
C22—C21—H21 | 119.8 | C15—C14—C13 | 117.22 (16) |
C20—C21—H21 | 119.8 | C24—C14—C17 | 105.92 (14) |
C21—C22—C23 | 120.73 (18) | C15—C14—C17 | 107.92 (15) |
C21—C22—H22 | 119.6 | C13—C14—C17 | 104.65 (13) |
C23—C22—H22 | 119.6 | C23—C24—C19 | 120.46 (17) |
C24—C23—C22 | 119.09 (19) | C23—C24—C14 | 126.19 (16) |
C24—C23—H23 | 120.5 | C19—C24—C14 | 113.35 (14) |
C22—C23—H23 | 120.5 | C3—C4—C5 | 120.5 (2) |
C4—C3—C2 | 119.25 (19) | C3—C4—H4 | 119.7 |
C4—C3—H3 | 120.4 | C5—C4—H4 | 119.7 |
C2—C3—H3 | 120.4 | C6—C5—C4 | 121.00 (18) |
C3—C2—C1 | 120.55 (19) | C6—C5—H5 | 119.5 |
C3—C2—H2 | 119.7 | C4—C5—H5 | 119.5 |
C1—C2—H2 | 119.7 | C17—C18—C7 | 115.09 (15) |
C2—C1—C6 | 121.21 (19) | C17—C18—H18 | 122.5 |
C2—C1—H1 | 119.4 | C7—C18—H18 | 122.5 |
C6—C1—H1 | 119.4 | C9—C8—C13 | 119.54 (17) |
C5—C6—C1 | 117.42 (17) | C9—C8—C7 | 126.85 (17) |
C5—C6—C7 | 122.88 (15) | C13—C8—C7 | 113.58 (14) |
C1—C6—C7 | 119.66 (16) | C12—C13—C8 | 120.02 (17) |
C6—C7—C18 | 115.41 (14) | C12—C13—C14 | 126.63 (18) |
C6—C7—C19 | 112.82 (14) | C8—C13—C14 | 113.35 (15) |
C18—C7—C19 | 105.06 (13) | C13—C12—C11 | 120.1 (2) |
C6—C7—C8 | 115.31 (13) | C13—C12—H12 | 119.9 |
C18—C7—C8 | 103.10 (13) | C11—C12—H12 | 119.9 |
C19—C7—C8 | 103.83 (13) | C10—C11—C12 | 120.2 (2) |
C20—C19—C24 | 119.52 (16) | C10—C11—H11 | 119.9 |
C20—C19—C7 | 126.56 (16) | C12—C11—H11 | 119.9 |
C24—C19—C7 | 113.91 (15) | C11—C10—C9 | 120.46 (19) |
C19—C20—C21 | 119.77 (19) | C11—C10—H10 | 119.8 |
C19—C20—H20 | 120.1 | C9—C10—H10 | 119.8 |
C21—C20—H20 | 120.1 | C8—C9—C10 | 119.6 (2) |
C17—C16—S1 | 105.52 (13) | C8—C9—H9 | 120.2 |
C17—C16—H16A | 110.6 | C10—C9—H9 | 120.2 |
S1—C16—H16A | 110.6 | C14—C15—S1 | 106.81 (13) |
C17—C16—H16B | 110.6 | C14—C15—H15A | 110.4 |
S1—C16—H16B | 110.6 | S1—C15—H15A | 110.4 |
H16A—C16—H16B | 108.8 | C14—C15—H15B | 110.4 |
C18—C17—C16 | 130.86 (16) | S1—C15—H15B | 110.4 |
C18—C17—C14 | 115.23 (15) | H15A—C15—H15B | 108.6 |
C16—C17—C14 | 113.86 (15) | ||
C20—C21—C22—C23 | −1.1 (3) | C15—C14—C24—C19 | −171.86 (15) |
C21—C22—C23—C24 | −0.5 (3) | C13—C14—C24—C19 | 57.81 (17) |
C4—C3—C2—C1 | 0.2 (3) | C17—C14—C24—C19 | −52.30 (18) |
C3—C2—C1—C6 | 1.9 (3) | C2—C3—C4—C5 | −1.6 (3) |
C2—C1—C6—C5 | −2.6 (3) | C1—C6—C5—C4 | 1.2 (3) |
C2—C1—C6—C7 | 179.40 (18) | C7—C6—C5—C4 | 179.12 (17) |
C5—C6—C7—C18 | 9.5 (2) | C3—C4—C5—C6 | 0.9 (3) |
C1—C6—C7—C18 | −172.62 (16) | C16—C17—C18—C7 | −178.55 (17) |
C5—C6—C7—C19 | −111.32 (18) | C14—C17—C18—C7 | −1.4 (2) |
C1—C6—C7—C19 | 66.6 (2) | C6—C7—C18—C17 | −177.47 (15) |
C5—C6—C7—C8 | 129.62 (17) | C19—C7—C18—C17 | −52.56 (19) |
C1—C6—C7—C8 | −52.5 (2) | C8—C7—C18—C17 | 55.91 (18) |
C6—C7—C19—C20 | 1.0 (2) | C6—C7—C8—C9 | −3.1 (2) |
C18—C7—C19—C20 | −125.52 (17) | C18—C7—C8—C9 | 123.63 (17) |
C8—C7—C19—C20 | 126.54 (17) | C19—C7—C8—C9 | −126.98 (17) |
C6—C7—C19—C24 | −179.93 (13) | C6—C7—C8—C13 | 178.59 (14) |
C18—C7—C19—C24 | 53.54 (17) | C18—C7—C8—C13 | −54.73 (17) |
C8—C7—C19—C24 | −54.39 (17) | C19—C7—C8—C13 | 54.66 (17) |
C24—C19—C20—C21 | 0.4 (2) | C9—C8—C13—C12 | 1.7 (2) |
C7—C19—C20—C21 | 179.44 (16) | C7—C8—C13—C12 | −179.77 (15) |
C22—C21—C20—C19 | 1.1 (3) | C9—C8—C13—C14 | −177.77 (15) |
C15—S1—C16—C17 | 32.38 (13) | C7—C8—C13—C14 | 0.72 (19) |
S1—C16—C17—C18 | 155.10 (17) | C24—C14—C13—C12 | 123.19 (18) |
S1—C16—C17—C14 | −22.11 (18) | C15—C14—C13—C12 | −6.3 (3) |
C18—C17—C14—C24 | 55.15 (19) | C17—C14—C13—C12 | −125.78 (18) |
C16—C17—C14—C24 | −127.18 (15) | C24—C14—C13—C8 | −57.34 (17) |
C18—C17—C14—C15 | 179.77 (16) | C15—C14—C13—C8 | 173.18 (15) |
C16—C17—C14—C15 | −2.6 (2) | C17—C14—C13—C8 | 53.70 (18) |
C18—C17—C14—C13 | −54.68 (19) | C8—C13—C12—C11 | 0.0 (3) |
C16—C17—C14—C13 | 122.99 (16) | C14—C13—C12—C11 | 179.43 (17) |
C22—C23—C24—C19 | 2.1 (3) | C13—C12—C11—C10 | −1.4 (3) |
C22—C23—C24—C14 | −177.67 (17) | C12—C11—C10—C9 | 1.2 (3) |
C20—C19—C24—C23 | −2.0 (2) | C13—C8—C9—C10 | −2.0 (3) |
C7—C19—C24—C23 | 178.83 (15) | C7—C8—C9—C10 | 179.71 (16) |
C20—C19—C24—C14 | 177.74 (14) | C11—C10—C9—C8 | 0.6 (3) |
C7—C19—C24—C14 | −1.39 (19) | C24—C14—C15—S1 | 144.72 (13) |
C15—C14—C24—C23 | 7.9 (3) | C13—C14—C15—S1 | −91.47 (17) |
C13—C14—C24—C23 | −122.42 (18) | C17—C14—C15—S1 | 26.26 (18) |
C17—C14—C24—C23 | 127.46 (18) | C16—S1—C15—C14 | −34.57 (15) |
Cg1 and Cg2 are the centroids of the C19–C2 and C8–C13 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···Cg1i | 0.93 | 2.80 | 3.516 (2) | 135 |
C5—H5···Cg1ii | 0.93 | 2.76 | 3.5844 (19) | 149 |
C15—H15B···Cg2iii | 0.97 | 2.98 | 3.845 (2) | 149 |
Symmetry codes: (i) −x+3/2, −y−1, z+3/2; (ii) −x+1, −y+2, −z+2; (iii) x+1, −y−1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C24H18S |
Mr | 338.44 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 296 |
a, b, c (Å) | 18.8842 (11), 9.5339 (4), 19.1140 (9) |
V (Å3) | 3441.3 (3) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.19 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2004) |
Tmin, Tmax | 0.945, 0.963 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22858, 3757, 2765 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.138, 1.02 |
No. of reflections | 3757 |
No. of parameters | 226 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.18, −0.26 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT (Bruker, 2004), SAINT and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010), SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).
Cg1 and Cg2 are the centroids of the C19–C2 and C8–C13 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···Cg1i | 0.93 | 2.80 | 3.516 (2) | 135 |
C5—H5···Cg1ii | 0.93 | 2.76 | 3.5844 (19) | 149 |
C15—H15B···Cg2iii | 0.97 | 2.98 | 3.845 (2) | 149 |
Symmetry codes: (i) −x+3/2, −y−1, z+3/2; (ii) −x+1, −y+2, −z+2; (iii) x+1, −y−1/2, z−1/2. |
Acknowledgements
EMM is thankful to the Council of Scientific and Industrial Research, New Delhi, India, for financial support in the form of a Senior Research Fellowship. The authors are grateful to the Sophisticated Analytical Instruments Facility, Cochin University of Science and Technology, Kochi-22, India, for the single-crystal X-ray diffraction measurements.
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.
Thiazoles, thiophenes and their derivatives have attracted continuing interest over the years since they often exhibit various biological activities and have been investigated for the treatment of various diseases (Khalil et al., 2010). Dibenzobarrelene derivatives find application in the alignment of nematic liquid crystals. The strong coupling of the liquid crystal directors to dibenzobarrelene groups is responsible for the alignment mechanism (Cox et al., 2013).
The compound (Fig. 1) crystallizes in the monoclinic space group Pbca. The dihedral angles between the phenyl ring and the other two benzene rings of the anthracene moiety are 51.92 (9) and 68.24 (9)°. The two aromatic rings of the anthracene moiety form a dihedral angle of 120.13 (9)° between themselves.
The five-membered heterocyclic ring C14–17/S1 is in an envelope conformation on S1 [φ = 3.9 (3)°] (Cremer & Pople, 1975). The ring C7/C8/C13/C14/C19/C24 of the three fused six-membered rings is in a boat conformation [φ = 180.31 (13)° and θ = 89.60 (12)°] with a total puckering amplitude QT of 0.8317 (18) Å. The second six-membered ring C7/C8/C13/C14/C17/C18 is also in a boat conformation [φ = 359.90 (13)° and θ = 89.16 (13)°] having a total puckering amplitude QT of 0.8160 (18) Å. The third six-membered ring C7/C14/C17/C18/C19/C24 also has the same conformation [φ = 358.83 (13)° and θ = 89.80 (13)°] and has a total puckering amplitude QT of 0.7856 (18) Å.
There are three weak C–H···π interactions (Fig. 2) between the H atoms attached at the C2, C5 and C15 atoms and neighboring aromatic rings. The hydrogen atoms from the C2 and C5 atoms form C–H···π interactions with the C19—C24 ring of two adjacent molecules from opposite sides of the main molecule and the hydrogen attached at C15 atom has an interaction with the C8—C13 ring of a neighbouring molecule with H···π distances of 2.80, 2.76 and 2.98 Å, respectively (Table 1). The packing of molecules is dominated by these C–H···π interactions. Fig. 3 shows the packing diagram of the title compound along b axis.