organic compounds
3-Ethylsulfanyl-2,5-diphenyl-1-benzofuran
aDepartment of Chemistry, Dongeui University, San 24 Kaya-dong Busanjin-gu, Busan 614-714, Republic of Korea, and bDepartment of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
*Correspondence e-mail: uklee@pknu.ac.kr
In the title compound, C22H18OS, the 2-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 29.18 (6)°. The dihedral angle between the 5-phenyl ring and the benzofuran plane is 20.42 (5)°. In the molecules are linked by weak intermolecular C—H⋯π interactions.
Related literature
For the crystal structures of similar 3-alkylsulfanyl-2,5-diaryl-1-benzofuran derivatives, see: Choi, et al. (2006, 2010). For the pharmacological activity of benzofuran compounds, see: Aslam et al. (2006); Galal et al. (2009); Khan et al. (2005). For natural products with benzofuran rings, see: Akgul & Anil (2003); Soekamto et al. (2003).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); 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 DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810028308/cs2130sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810028308/cs2130Isup2.hkl
Zinc chloride (300 mg, 2.2 mmol) was added to a stirred solution of 4-phenylphenol (375 mg, 2.2 mmol) and 2-chloro-2-(ethylsulfanyl)acetophenone (472 mg, 2.2 mmol) in dichloromethane (30 mL) at room temperature, and stirring was continued at the same temperature for 1hr. The reaction was quenched by the addition of water and the organic layer separated, dried over magnesium sulfate, filtered and concentrated at reduced pressure. The residue was purified by
(carbon tetrachloride) to afford the title compound as a colorless solid [yield 46%, m.p. 368–369 K; Rf = 0.51 (carbon tetrachloride)]. Single crystals suitable for X-ray diffraction were prepared by evaporation of a solution of the title compound in acetone at room temperature.All H atoms were positioned geometrically and refined using a riding model, with C—H = 0.95 Å for aryl, 0.95 Å for methylene and 0.99 Å for methyl H atoms. Uiso(H) = 1.2Ueq(C) for aryl and methylene, 1.5Ueq(C) for methyl H atoms.
The compounds containing benzofuran skeleton show interesting pharmacological properties such as antifungal (Aslam et al.., 2006), antitumor and antiviral (Galal et al.., 2009), antimicrobial (Khan et al.., 2005) activity. These compounds occur in nature (Akgul & Anil, 2003; Soekamto et al.., 2003). As a part of our ongoing studies of the effect of side chain substituents on the solid state structures of 3-alkylsulfanyl-2,5-diaryl-1-benzofuran analogues (Choi et al.., 2006, 2010), we report the
of the title compound (Fig. 1).The title compound crystallizes in the monoclinic π interactions; the first one between the 5-phenyl H atom and the 5-phenyl ring of an adjacent molecule, with a C10—H10···Cg1i, and the second one between the 5-phenyl H atom and the 2-phenyl ring of a neighbouring molecule, with a C14—H14···Cg2ii, respectively (Table 1, Cg1 and Cg2 are the centroids of the C9–C14 phenyl ring and the C15–C20 phenyl ring, respectively, for symmetry operators see Fig. 2 legend).
P21. The benzofuran unit is essentially planar, with a mean deviation of 0.020 (1) Å from the least-squares plane defined by the nine constituent atoms. In the molecule, the benzofuran plane makes dihedral angles of 29.18 (6) and 20.42 (5)° with the 2-phenyl ring and the 5-phenyl ring, respectively. The crystal packing (Fig. 2) is stabilized by weak intermolecular C—H···For the crystal structures of similar 3-alkylsulfanyl-2,5-diaryl-1-benzofuran derivatives, see: Choi, et al. (2006, 2010). For the pharmacological activity of benzofuran compounds, see: Aslam et al. (2006); Galal et al. (2009); Khan et al. (2005). For natural products with benzofuran rings, see: Akgul & Anil (2003); Soekamto et al. (2003).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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 DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C22H18OS | F(000) = 348 |
Mr = 330.42 | Dx = 1.300 Mg m−3 |
Monoclinic, P21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2yb | Cell parameters from 5754 reflections |
a = 10.4968 (3) Å | θ = 2.2–27.6° |
b = 7.2025 (2) Å | µ = 0.20 mm−1 |
c = 12.0783 (3) Å | T = 174 K |
β = 112.474 (1)° | Block, colourless |
V = 843.81 (4) Å3 | 0.24 × 0.20 × 0.18 mm |
Z = 2 |
Bruker SMART APEXII CCD diffractometer | 3380 independent reflections |
Radiation source: rotating anode | 3229 reflections with I > 2σ(I) |
Graphite multilayer monochromator | Rint = 0.028 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.6°, θmin = 1.8° |
φ and ω scans | h = −13→13 |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | k = −8→9 |
Tmin = 0.954, Tmax = 0.966 | l = −15→15 |
7930 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.031 | H-atom parameters constrained |
wR(F2) = 0.080 | w = 1/[σ2(Fo2) + (0.0418P)2 + 0.1018P] where P = (Fo2 + 2Fc2)/3 |
S = 1.06 | (Δ/σ)max < 0.001 |
3380 reflections | Δρmax = 0.20 e Å−3 |
218 parameters | Δρmin = −0.24 e Å−3 |
1 restraint | Absolute structure: Flack (1983), 1271 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.05 (6) |
C22H18OS | V = 843.81 (4) Å3 |
Mr = 330.42 | Z = 2 |
Monoclinic, P21 | Mo Kα radiation |
a = 10.4968 (3) Å | µ = 0.20 mm−1 |
b = 7.2025 (2) Å | T = 174 K |
c = 12.0783 (3) Å | 0.24 × 0.20 × 0.18 mm |
β = 112.474 (1)° |
Bruker SMART APEXII CCD diffractometer | 3380 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3229 reflections with I > 2σ(I) |
Tmin = 0.954, Tmax = 0.966 | Rint = 0.028 |
7930 measured reflections |
R[F2 > 2σ(F2)] = 0.031 | H-atom parameters constrained |
wR(F2) = 0.080 | Δρmax = 0.20 e Å−3 |
S = 1.06 | Δρmin = −0.24 e Å−3 |
3380 reflections | Absolute structure: Flack (1983), 1271 Friedel pairs |
218 parameters | Absolute structure parameter: 0.05 (6) |
1 restraint |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
S | 0.52254 (4) | 0.25661 (7) | 0.85171 (3) | 0.03269 (11) | |
O | 0.64105 (10) | 0.32731 (17) | 0.57860 (9) | 0.0280 (2) | |
C1 | 0.54722 (15) | 0.2879 (2) | 0.71715 (13) | 0.0257 (3) | |
C2 | 0.43709 (15) | 0.2982 (2) | 0.60132 (13) | 0.0247 (3) | |
C3 | 0.29352 (15) | 0.2969 (2) | 0.55943 (13) | 0.0252 (3) | |
H3 | 0.2485 | 0.2815 | 0.6138 | 0.030* | |
C4 | 0.21667 (15) | 0.3182 (2) | 0.43754 (13) | 0.0247 (3) | |
C5 | 0.28644 (16) | 0.3366 (2) | 0.35838 (14) | 0.0278 (3) | |
H5 | 0.2336 | 0.3477 | 0.2749 | 0.033* | |
C6 | 0.42891 (16) | 0.3391 (3) | 0.39822 (14) | 0.0293 (3) | |
H6 | 0.4747 | 0.3519 | 0.3444 | 0.035* | |
C7 | 0.50068 (15) | 0.3221 (2) | 0.51984 (14) | 0.0259 (3) | |
C8 | 0.66776 (15) | 0.3084 (2) | 0.69972 (14) | 0.0266 (3) | |
C9 | 0.06340 (15) | 0.3277 (2) | 0.39132 (13) | 0.0242 (3) | |
C10 | −0.00910 (15) | 0.2388 (3) | 0.45240 (14) | 0.0275 (3) | |
H10 | 0.0395 | 0.1659 | 0.5212 | 0.033* | |
C11 | −0.15161 (15) | 0.2563 (3) | 0.41335 (15) | 0.0323 (3) | |
H11 | −0.1996 | 0.1959 | 0.4558 | 0.039* | |
C12 | −0.22321 (17) | 0.3606 (3) | 0.31357 (17) | 0.0350 (4) | |
H12 | −0.3203 | 0.3741 | 0.2879 | 0.042* | |
C13 | −0.15343 (18) | 0.4461 (3) | 0.25046 (16) | 0.0365 (4) | |
H13 | −0.2031 | 0.5160 | 0.1805 | 0.044* | |
C14 | −0.01146 (17) | 0.4299 (3) | 0.28911 (15) | 0.0301 (4) | |
H14 | 0.0354 | 0.4893 | 0.2454 | 0.036* | |
C15 | 0.81365 (15) | 0.3226 (2) | 0.77699 (14) | 0.0274 (3) | |
C16 | 0.86570 (16) | 0.2563 (3) | 0.89490 (15) | 0.0353 (4) | |
H16 | 0.8056 | 0.1992 | 0.9269 | 0.042* | |
C17 | 1.00454 (18) | 0.2741 (3) | 0.96477 (16) | 0.0404 (4) | |
H17 | 1.0393 | 0.2287 | 1.0447 | 0.048* | |
C18 | 1.09330 (19) | 0.3569 (3) | 0.91986 (19) | 0.0394 (4) | |
H18 | 1.1884 | 0.3690 | 0.9687 | 0.047* | |
C19 | 1.04281 (18) | 0.4221 (3) | 0.80334 (18) | 0.0374 (4) | |
H19 | 1.1037 | 0.4793 | 0.7723 | 0.045* | |
C20 | 0.90512 (17) | 0.4049 (2) | 0.73196 (16) | 0.0313 (4) | |
H20 | 0.8718 | 0.4491 | 0.6518 | 0.038* | |
C21 | 0.45785 (19) | 0.4872 (3) | 0.86615 (17) | 0.0391 (4) | |
H21A | 0.3815 | 0.5199 | 0.7900 | 0.047* | |
H21B | 0.4203 | 0.4841 | 0.9299 | 0.047* | |
C22 | 0.5674 (2) | 0.6348 (3) | 0.89573 (19) | 0.0489 (5) | |
H22A | 0.6086 | 0.6339 | 0.8354 | 0.073* | |
H22B | 0.6389 | 0.6100 | 0.9749 | 0.073* | |
H22C | 0.5260 | 0.7566 | 0.8962 | 0.073* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S | 0.0348 (2) | 0.0388 (2) | 0.02657 (19) | −0.00208 (19) | 0.01411 (16) | 0.00605 (19) |
O | 0.0247 (5) | 0.0343 (6) | 0.0265 (5) | −0.0002 (5) | 0.0113 (4) | −0.0006 (5) |
C1 | 0.0280 (7) | 0.0243 (9) | 0.0257 (7) | 0.0003 (6) | 0.0112 (6) | 0.0029 (6) |
C2 | 0.0298 (7) | 0.0220 (9) | 0.0242 (7) | −0.0011 (6) | 0.0124 (6) | −0.0006 (6) |
C3 | 0.0266 (7) | 0.0251 (9) | 0.0268 (7) | −0.0011 (6) | 0.0135 (6) | −0.0002 (6) |
C4 | 0.0264 (7) | 0.0222 (8) | 0.0275 (7) | −0.0027 (6) | 0.0124 (6) | −0.0017 (6) |
C5 | 0.0306 (8) | 0.0316 (9) | 0.0221 (7) | −0.0020 (7) | 0.0110 (6) | −0.0007 (7) |
C6 | 0.0322 (8) | 0.0334 (9) | 0.0278 (8) | −0.0022 (7) | 0.0175 (7) | −0.0015 (7) |
C7 | 0.0237 (7) | 0.0268 (8) | 0.0288 (8) | −0.0006 (6) | 0.0120 (6) | −0.0013 (7) |
C8 | 0.0298 (7) | 0.0240 (8) | 0.0264 (7) | 0.0028 (6) | 0.0113 (6) | 0.0008 (6) |
C9 | 0.0268 (7) | 0.0211 (7) | 0.0244 (7) | −0.0009 (6) | 0.0096 (6) | −0.0038 (6) |
C10 | 0.0276 (7) | 0.0260 (8) | 0.0293 (7) | −0.0020 (7) | 0.0115 (6) | −0.0007 (7) |
C11 | 0.0306 (8) | 0.0299 (8) | 0.0402 (8) | −0.0039 (8) | 0.0177 (7) | −0.0030 (9) |
C12 | 0.0238 (8) | 0.0355 (10) | 0.0425 (10) | −0.0022 (7) | 0.0090 (7) | −0.0037 (8) |
C13 | 0.0309 (9) | 0.0362 (10) | 0.0352 (9) | 0.0012 (7) | 0.0047 (8) | 0.0045 (8) |
C14 | 0.0300 (9) | 0.0293 (9) | 0.0303 (8) | −0.0038 (7) | 0.0107 (7) | 0.0020 (7) |
C15 | 0.0261 (7) | 0.0229 (8) | 0.0331 (8) | 0.0021 (7) | 0.0112 (7) | −0.0017 (7) |
C16 | 0.0308 (8) | 0.0367 (9) | 0.0378 (8) | 0.0019 (8) | 0.0123 (7) | 0.0029 (9) |
C17 | 0.0362 (9) | 0.0421 (12) | 0.0347 (8) | 0.0047 (9) | 0.0046 (7) | 0.0023 (9) |
C18 | 0.0260 (8) | 0.0352 (10) | 0.0491 (11) | 0.0029 (7) | 0.0054 (8) | −0.0021 (9) |
C19 | 0.0300 (9) | 0.0327 (10) | 0.0504 (11) | 0.0002 (7) | 0.0163 (8) | 0.0014 (9) |
C20 | 0.0284 (8) | 0.0275 (9) | 0.0375 (9) | 0.0024 (7) | 0.0119 (7) | 0.0026 (7) |
C21 | 0.0408 (10) | 0.0484 (12) | 0.0320 (9) | 0.0039 (9) | 0.0181 (8) | −0.0019 (8) |
C22 | 0.0638 (13) | 0.0459 (12) | 0.0350 (10) | −0.0056 (10) | 0.0168 (10) | −0.0048 (9) |
S—C1 | 1.755 (1) | C12—C13 | 1.387 (3) |
S—C21 | 1.828 (2) | C12—H12 | 0.9500 |
O—C7 | 1.370 (2) | C13—C14 | 1.386 (2) |
O—C8 | 1.387 (2) | C13—H13 | 0.9500 |
C1—C8 | 1.368 (2) | C14—H14 | 0.9500 |
C1—C2 | 1.436 (2) | C15—C16 | 1.400 (2) |
C2—C3 | 1.394 (2) | C15—C20 | 1.403 (2) |
C2—C7 | 1.395 (2) | C16—C17 | 1.383 (2) |
C3—C4 | 1.391 (2) | C16—H16 | 0.9500 |
C3—H3 | 0.9500 | C17—C18 | 1.380 (3) |
C4—C5 | 1.416 (2) | C17—H17 | 0.9500 |
C4—C9 | 1.489 (2) | C18—C19 | 1.383 (3) |
C5—C6 | 1.385 (2) | C18—H18 | 0.9500 |
C5—H5 | 0.9500 | C19—C20 | 1.377 (2) |
C6—C7 | 1.376 (2) | C19—H19 | 0.9500 |
C6—H6 | 0.9500 | C20—H20 | 0.9500 |
C8—C15 | 1.461 (2) | C21—C22 | 1.505 (3) |
C9—C14 | 1.394 (2) | C21—H21A | 0.9900 |
C9—C10 | 1.401 (2) | C21—H21B | 0.9900 |
C10—C11 | 1.392 (2) | C22—H22A | 0.9800 |
C10—H10 | 0.9500 | C22—H22B | 0.9800 |
C11—C12 | 1.375 (3) | C22—H22C | 0.9800 |
C11—H11 | 0.9500 | ||
C1—S—C21 | 99.40 (8) | C13—C12—H12 | 120.1 |
C7—O—C8 | 106.70 (11) | C14—C13—C12 | 120.22 (17) |
C8—C1—C2 | 106.98 (13) | C14—C13—H13 | 119.9 |
C8—C1—S | 128.97 (12) | C12—C13—H13 | 119.9 |
C2—C1—S | 124.05 (11) | C13—C14—C9 | 120.83 (15) |
C3—C2—C7 | 119.15 (14) | C13—C14—H14 | 119.6 |
C3—C2—C1 | 135.14 (13) | C9—C14—H14 | 119.6 |
C7—C2—C1 | 105.64 (13) | C16—C15—C20 | 118.66 (15) |
C4—C3—C2 | 119.50 (12) | C16—C15—C8 | 122.16 (14) |
C4—C3—H3 | 120.2 | C20—C15—C8 | 119.18 (15) |
C2—C3—H3 | 120.2 | C17—C16—C15 | 119.99 (16) |
C3—C4—C5 | 119.01 (13) | C17—C16—H16 | 120.0 |
C3—C4—C9 | 120.55 (12) | C15—C16—H16 | 120.0 |
C5—C4—C9 | 120.42 (14) | C18—C17—C16 | 120.83 (17) |
C6—C5—C4 | 122.36 (14) | C18—C17—H17 | 119.6 |
C6—C5—H5 | 118.8 | C16—C17—H17 | 119.6 |
C4—C5—H5 | 118.8 | C17—C18—C19 | 119.55 (17) |
C7—C6—C5 | 116.58 (13) | C17—C18—H18 | 120.2 |
C7—C6—H6 | 121.7 | C19—C18—H18 | 120.2 |
C5—C6—H6 | 121.7 | C20—C19—C18 | 120.60 (16) |
O—C7—C6 | 126.30 (13) | C20—C19—H19 | 119.7 |
O—C7—C2 | 110.36 (13) | C18—C19—H19 | 119.7 |
C6—C7—C2 | 123.34 (14) | C19—C20—C15 | 120.36 (16) |
C1—C8—O | 110.31 (13) | C19—C20—H20 | 119.8 |
C1—C8—C15 | 135.63 (14) | C15—C20—H20 | 119.8 |
O—C8—C15 | 114.01 (12) | C22—C21—S | 112.73 (14) |
C14—C9—C10 | 118.17 (14) | C22—C21—H21A | 109.0 |
C14—C9—C4 | 121.24 (13) | S—C21—H21A | 109.0 |
C10—C9—C4 | 120.55 (14) | C22—C21—H21B | 109.0 |
C11—C10—C9 | 120.68 (16) | S—C21—H21B | 109.0 |
C11—C10—H10 | 119.7 | H21A—C21—H21B | 107.8 |
C9—C10—H10 | 119.7 | C21—C22—H22A | 109.5 |
C12—C11—C10 | 120.21 (15) | C21—C22—H22B | 109.5 |
C12—C11—H11 | 119.9 | H22A—C22—H22B | 109.5 |
C10—C11—H11 | 119.9 | C21—C22—H22C | 109.5 |
C11—C12—C13 | 119.87 (15) | H22A—C22—H22C | 109.5 |
C11—C12—H12 | 120.1 | H22B—C22—H22C | 109.5 |
C21—S—C1—C8 | 106.15 (17) | C7—O—C8—C15 | −176.39 (13) |
C21—S—C1—C2 | −73.27 (15) | C3—C4—C9—C14 | 149.59 (16) |
C8—C1—C2—C3 | −176.13 (17) | C5—C4—C9—C14 | −28.4 (2) |
S—C1—C2—C3 | 3.4 (3) | C3—C4—C9—C10 | −28.1 (2) |
C8—C1—C2—C7 | 0.84 (18) | C5—C4—C9—C10 | 153.88 (17) |
S—C1—C2—C7 | −179.64 (12) | C14—C9—C10—C11 | −1.5 (2) |
C7—C2—C3—C4 | 0.4 (2) | C4—C9—C10—C11 | 176.25 (16) |
C1—C2—C3—C4 | 177.06 (16) | C9—C10—C11—C12 | 0.3 (3) |
C2—C3—C4—C5 | 1.4 (2) | C10—C11—C12—C13 | 1.1 (3) |
C2—C3—C4—C9 | −176.65 (14) | C11—C12—C13—C14 | −1.3 (3) |
C3—C4—C5—C6 | −1.8 (3) | C12—C13—C14—C9 | 0.2 (3) |
C9—C4—C5—C6 | 176.31 (15) | C10—C9—C14—C13 | 1.2 (3) |
C4—C5—C6—C7 | 0.2 (3) | C4—C9—C14—C13 | −176.49 (16) |
C8—O—C7—C6 | 178.86 (16) | C1—C8—C15—C16 | 21.8 (3) |
C8—O—C7—C2 | −0.62 (18) | O—C8—C15—C16 | −161.40 (16) |
C5—C6—C7—O | −177.68 (15) | C1—C8—C15—C20 | −158.25 (19) |
C5—C6—C7—C2 | 1.7 (3) | O—C8—C15—C20 | 18.5 (2) |
C3—C2—C7—O | 177.43 (13) | C20—C15—C16—C17 | 0.5 (3) |
C1—C2—C7—O | −0.13 (18) | C8—C15—C16—C17 | −179.59 (17) |
C3—C2—C7—C6 | −2.1 (3) | C15—C16—C17—C18 | 0.1 (3) |
C1—C2—C7—C6 | −179.63 (16) | C16—C17—C18—C19 | −0.3 (3) |
C2—C1—C8—O | −1.26 (18) | C17—C18—C19—C20 | −0.1 (3) |
S—C1—C8—O | 179.25 (12) | C18—C19—C20—C15 | 0.7 (3) |
C2—C1—C8—C15 | 175.57 (17) | C16—C15—C20—C19 | −0.9 (3) |
S—C1—C8—C15 | −3.9 (3) | C8—C15—C20—C19 | 179.21 (16) |
C7—O—C8—C1 | 1.18 (17) | C1—S—C21—C22 | −70.50 (15) |
Cg1 and Cg2 are the centroids of the C9–C14 (5-phenyl) and C15–C20 (2-phenyl) rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10···Cg1i | 0.95 | 2.73 | 3.592 (3) | 152 |
C14—H14···Cg2ii | 0.95 | 2.79 | 3.549 (3) | 138 |
Symmetry codes: (i) −x, y−1/2, −z+1; (ii) −x+1, y+1/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C22H18OS |
Mr | 330.42 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 174 |
a, b, c (Å) | 10.4968 (3), 7.2025 (2), 12.0783 (3) |
β (°) | 112.474 (1) |
V (Å3) | 843.81 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.20 |
Crystal size (mm) | 0.24 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.954, 0.966 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7930, 3380, 3229 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.651 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.031, 0.080, 1.06 |
No. of reflections | 3380 |
No. of parameters | 218 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.24 |
Absolute structure | Flack (1983), 1271 Friedel pairs |
Absolute structure parameter | 0.05 (6) |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998).
Cg1 and Cg2 are the centroids of the C9–C14 (5-phenyl) and C15–C20 (2-phenyl) rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10···Cg1i | 0.95 | 2.73 | 3.592 (3) | 151.7 |
C14—H14···Cg2ii | 0.95 | 2.79 | 3.549 (3) | 138.1 |
Symmetry codes: (i) −x, y−1/2, −z+1; (ii) −x+1, y+1/2, −z+1. |
References
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The compounds containing benzofuran skeleton show interesting pharmacological properties such as antifungal (Aslam et al.., 2006), antitumor and antiviral (Galal et al.., 2009), antimicrobial (Khan et al.., 2005) activity. These compounds occur in nature (Akgul & Anil, 2003; Soekamto et al.., 2003). As a part of our ongoing studies of the effect of side chain substituents on the solid state structures of 3-alkylsulfanyl-2,5-diaryl-1-benzofuran analogues (Choi et al.., 2006, 2010), we report the crystal structure of the title compound (Fig. 1).
The title compound crystallizes in the monoclinic space group P21. The benzofuran unit is essentially planar, with a mean deviation of 0.020 (1) Å from the least-squares plane defined by the nine constituent atoms. In the molecule, the benzofuran plane makes dihedral angles of 29.18 (6) and 20.42 (5)° with the 2-phenyl ring and the 5-phenyl ring, respectively. The crystal packing (Fig. 2) is stabilized by weak intermolecular C—H···π interactions; the first one between the 5-phenyl H atom and the 5-phenyl ring of an adjacent molecule, with a C10—H10···Cg1i, and the second one between the 5-phenyl H atom and the 2-phenyl ring of a neighbouring molecule, with a C14—H14···Cg2ii, respectively (Table 1, Cg1 and Cg2 are the centroids of the C9–C14 phenyl ring and the C15–C20 phenyl ring, respectively, for symmetry operators see Fig. 2 legend).