organic compounds
of 2,5-dimethyl-3-(2-methylphenylsulfonyl)-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
The title compound, C17H16O3S, crystallized with two independent molecules (A and B) in the The dihedral angle between the benzofuran ring system [r.m.s. deviation of 0.013 (1) for A and 0.009 (1) Å for B] and the 2-methylphenyl ring is 83.88 (5) for A and 86.94 (5)° for B. In the crystal, the B molecules are linked into a chain along the b-axis direction by C—H⋯O hydrogen bonds. The A molecules are connected on either side of this chain by further C—H⋯O hydrogen bonds. These chains are linked via C—H⋯π interactions, forming sheets parallel to (100). There are also very weak π–π interactions present [centroid–centroid distance = 3.925 (11) Å] involvingthe 2-methylphenyl rings of neighbouring A and B molecules.
Keywords: crystal structure; benzofuran; 2-methylphenyl; sulfonyl; C—H⋯O hydrogen bonds; C—H⋯π interactions; π–π interactions.
CCDC reference: 1029621
1. Related literature
For a related structure and background to benzofuran derivatives, see: Choi & Lee (2014). For further synthetic details, see: Choi et al. (1999).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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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 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
Supporting information
CCDC reference: 1029621
10.1107/S1600536814022788/su5004sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814022788/su5004Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814022788/su5004Isup3.cml
The starting material 2,5-dimethyl-3-(2-methylphenylsulfanyl)-1-benzofuran was prepared by the literature method (Choi et al., 1999). 3-chloroperoxybenzoic acid (77%, 515 mg, 2.3 mmol) was added in small portions to a stirred solution of 2,5-dimethyl-3-(2-methylphenylsulfanyl)-1-benzofuran (295 mg, 1.1 mmol) in dichloromethane (35 ml) at 273 K. After being stirred at room temperature for 8h, the mixture was washed with saturated sodium bicarbonate solution (2 × 10 ml) and the organic layer was separated, dried over magnesium sulfate, filtered and concentrated at reduced pressure. The residue was purified by
(hexane-ethyl acetate, 4:1 v/v) to afford the title compound as a colourless solid [yield 71%; 222 mg; m.p. 385–386 K; Rf = 0.54 (hexane-ethyl acetate, 4:1 v/v)]. Single crystals suitable for X-ray diffraction were prepared by slow evaporation of a solution of the title compound (23 mg) in ethyl acetate (20 ml) at room temperature.All H atoms were positioned geometrically and refined using a riding model, with C—H = 0.95 Å for aryl, and 0.98 Å for methyl H atoms and with Uiso(H) = 1.5Ueq(C) for methyl H atoms and = 1.2Ueq (C) for other H atoms.
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 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).The molecular structure of the two independent molecules (A and B) of the title compound, with atom labelling. Displacement ellipsoids are drawn at the 50% probability level. A view of the C—H···O interactions (dashed lines) in the of the title compound - see Table 1 for details. H atoms not involved in hydrogen bonding have been omitted for clarity [Symmetry codes: (i) -x, y + 1/2 , -z + 1/2; (ii) x, y + 1, z; (iii) -x, y - 1/2, -z + 1/2; (iv) x, y - 1, z]. A view of the C—H···π and π–π interactions (dashed lines) in the of the title compound - see Table 1 for details. H atoms non-participating in hydrogen-bonding have been omitted for clarity [Symmetry codes: (i) x, -y + 3/2, z - 1/2; (ii) x, -y + 3/2, z + 1/2]. |
C17H16O3S | F(000) = 1264 |
Mr = 300.36 | Dx = 1.361 Mg m−3 |
Monoclinic, P21/c | Melting point = 386–385 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 16.7338 (4) Å | Cell parameters from 5209 reflections |
b = 8.0646 (2) Å | θ = 2.3–26.6° |
c = 21.8195 (6) Å | µ = 0.23 mm−1 |
β = 95.296 (1)° | T = 173 K |
V = 2932.00 (13) Å3 | Block, colourless |
Z = 8 | 0.58 × 0.37 × 0.23 mm |
Bruker SMART APEXII CCD diffractometer | 6773 independent reflections |
Radiation source: rotating anode | 5313 reflections with I > 2σ(I) |
Graphite multilayer monochromator | Rint = 0.042 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.6°, θmin = 1.9° |
ϕ and ω scans | h = −21→21 |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | k = −9→10 |
Tmin = 0.879, Tmax = 0.950 | l = −23→28 |
27259 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)] = 0.043 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.118 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.056P)2 + 1.1004P] where P = (Fo2 + 2Fc2)/3 |
6773 reflections | (Δ/σ)max = 0.001 |
385 parameters | Δρmax = 0.34 e Å−3 |
0 restraints | Δρmin = −0.44 e Å−3 |
C17H16O3S | V = 2932.00 (13) Å3 |
Mr = 300.36 | Z = 8 |
Monoclinic, P21/c | Mo Kα radiation |
a = 16.7338 (4) Å | µ = 0.23 mm−1 |
b = 8.0646 (2) Å | T = 173 K |
c = 21.8195 (6) Å | 0.58 × 0.37 × 0.23 mm |
β = 95.296 (1)° |
Bruker SMART APEXII CCD diffractometer | 6773 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 5313 reflections with I > 2σ(I) |
Tmin = 0.879, Tmax = 0.950 | Rint = 0.042 |
27259 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.118 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.34 e Å−3 |
6773 reflections | Δρmin = −0.44 e Å−3 |
385 parameters |
Experimental. 1H NMR (δ p.p.m., CDCl3, 400 Hz): 8.25 (d, J=7.52 Hz, 1H), 7.37-7.48 (m, 3H), 7.30 (d, J=8.52 Hz, 1H), 7.26 (d, J=7.52 Hz, 1H), 7.08 (d, J=8.56 Hz, 1H), 2.74 (s, 3H), 2.52 (s, 3H), 2.37 (s, 3H). |
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 | ||
S1 | 0.29003 (3) | 0.10514 (6) | 0.48076 (2) | 0.02658 (12) | |
O3 | 0.28718 (8) | −0.06396 (16) | 0.50124 (6) | 0.0361 (3) | |
O1 | 0.51121 (7) | 0.27240 (17) | 0.48421 (6) | 0.0336 (3) | |
O2 | 0.26309 (8) | 0.14295 (19) | 0.41824 (6) | 0.0388 (3) | |
C1 | 0.38848 (10) | 0.1730 (2) | 0.49575 (8) | 0.0257 (4) | |
C2 | 0.43612 (10) | 0.1551 (2) | 0.55426 (8) | 0.0245 (4) | |
C3 | 0.42259 (10) | 0.0982 (2) | 0.61259 (8) | 0.0261 (4) | |
H3 | 0.3718 | 0.0542 | 0.6201 | 0.031* | |
C4 | 0.48413 (11) | 0.1065 (2) | 0.65957 (9) | 0.0306 (4) | |
C5 | 0.55882 (11) | 0.1708 (3) | 0.64695 (9) | 0.0356 (4) | |
H5 | 0.6008 | 0.1757 | 0.6794 | 0.043* | |
C6 | 0.57388 (11) | 0.2272 (3) | 0.58951 (10) | 0.0355 (4) | |
H6 | 0.6249 | 0.2694 | 0.5815 | 0.043* | |
C7 | 0.51090 (10) | 0.2191 (2) | 0.54429 (8) | 0.0285 (4) | |
C8 | 0.43609 (11) | 0.2433 (2) | 0.45585 (8) | 0.0302 (4) | |
C9 | 0.47128 (13) | 0.0478 (3) | 0.72362 (9) | 0.0427 (5) | |
H9A | 0.4165 | 0.0746 | 0.7327 | 0.064* | |
H9B | 0.5097 | 0.1032 | 0.7535 | 0.064* | |
H9C | 0.4794 | −0.0724 | 0.7262 | 0.064* | |
C10 | 0.42443 (13) | 0.2938 (3) | 0.39015 (9) | 0.0404 (5) | |
H10A | 0.4554 | 0.2202 | 0.3656 | 0.061* | |
H10B | 0.4428 | 0.4083 | 0.3860 | 0.061* | |
H10C | 0.3674 | 0.2863 | 0.3756 | 0.061* | |
C11 | 0.23229 (9) | 0.2235 (2) | 0.52923 (8) | 0.0232 (3) | |
C12 | 0.19580 (10) | 0.1353 (2) | 0.57375 (8) | 0.0283 (4) | |
H12 | 0.2052 | 0.0196 | 0.5784 | 0.034* | |
C13 | 0.14589 (11) | 0.2152 (3) | 0.61129 (9) | 0.0337 (4) | |
H13 | 0.1211 | 0.1553 | 0.6419 | 0.040* | |
C14 | 0.13262 (11) | 0.3823 (3) | 0.60383 (9) | 0.0351 (4) | |
H14 | 0.0978 | 0.4381 | 0.6290 | 0.042* | |
C15 | 0.16958 (11) | 0.4699 (2) | 0.55985 (9) | 0.0330 (4) | |
H15 | 0.1597 | 0.5856 | 0.5557 | 0.040* | |
C16 | 0.22088 (10) | 0.3944 (2) | 0.52148 (8) | 0.0265 (4) | |
C17 | 0.26127 (12) | 0.4981 (3) | 0.47580 (9) | 0.0373 (5) | |
H17A | 0.2446 | 0.6140 | 0.4790 | 0.056* | |
H17B | 0.2458 | 0.4575 | 0.4341 | 0.056* | |
H17C | 0.3196 | 0.4901 | 0.4846 | 0.056* | |
S2 | 0.22038 (3) | 0.67798 (6) | 0.26437 (2) | 0.02693 (12) | |
O4 | 0.00302 (8) | 0.83199 (19) | 0.28806 (7) | 0.0422 (4) | |
O5 | 0.22026 (8) | 0.51558 (16) | 0.23717 (7) | 0.0360 (3) | |
O6 | 0.25599 (8) | 0.69703 (19) | 0.32615 (6) | 0.0404 (4) | |
C29 | 0.27854 (10) | 0.9817 (2) | 0.22581 (8) | 0.0272 (4) | |
C18 | 0.12153 (10) | 0.7450 (2) | 0.26076 (8) | 0.0271 (4) | |
C19 | 0.06680 (10) | 0.7498 (2) | 0.20564 (8) | 0.0263 (4) | |
C20 | 0.07067 (10) | 0.7165 (2) | 0.14330 (8) | 0.0282 (4) | |
H20 | 0.1190 | 0.6767 | 0.1289 | 0.034* | |
C21 | 0.00326 (11) | 0.7420 (2) | 0.10269 (10) | 0.0365 (5) | |
C22 | −0.06806 (12) | 0.7977 (3) | 0.12514 (12) | 0.0471 (6) | |
H22 | −0.1141 | 0.8136 | 0.0969 | 0.057* | |
C23 | −0.07384 (12) | 0.8299 (3) | 0.18648 (12) | 0.0454 (6) | |
H23 | −0.1225 | 0.8669 | 0.2012 | 0.054* | |
C24 | −0.00521 (11) | 0.8056 (2) | 0.22530 (10) | 0.0352 (4) | |
C25 | 0.08057 (12) | 0.7949 (3) | 0.30844 (9) | 0.0365 (5) | |
C26 | 0.00614 (15) | 0.7143 (3) | 0.03466 (10) | 0.0534 (6) | |
H26A | 0.0072 | 0.8216 | 0.0137 | 0.080* | |
H26B | −0.0414 | 0.6520 | 0.0184 | 0.080* | |
H26C | 0.0545 | 0.6514 | 0.0276 | 0.080* | |
C27 | 0.10147 (16) | 0.8167 (3) | 0.37561 (10) | 0.0534 (6) | |
H27A | 0.0772 | 0.7273 | 0.3980 | 0.080* | |
H27B | 0.0811 | 0.9238 | 0.3886 | 0.080* | |
H27C | 0.1599 | 0.8135 | 0.3846 | 0.080* | |
C28 | 0.26882 (10) | 0.8114 (2) | 0.21492 (8) | 0.0235 (4) | |
C30 | 0.32432 (11) | 1.0681 (2) | 0.18626 (9) | 0.0321 (4) | |
H30 | 0.3325 | 1.1837 | 0.1924 | 0.038* | |
C31 | 0.35822 (11) | 0.9915 (3) | 0.13847 (9) | 0.0339 (4) | |
H31 | 0.3903 | 1.0539 | 0.1131 | 0.041* | |
C32 | 0.34591 (11) | 0.8247 (3) | 0.12726 (9) | 0.0345 (4) | |
H32 | 0.3680 | 0.7725 | 0.0936 | 0.041* | |
C33 | 0.30100 (10) | 0.7347 (2) | 0.16561 (8) | 0.0290 (4) | |
H33 | 0.2920 | 0.6197 | 0.1583 | 0.035* | |
C34 | 0.24201 (15) | 1.0720 (3) | 0.27628 (10) | 0.0453 (5) | |
H34A | 0.2581 | 1.1889 | 0.2761 | 0.068* | |
H34B | 0.2606 | 1.0223 | 0.3160 | 0.068* | |
H34C | 0.1834 | 1.0641 | 0.2698 | 0.068* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0259 (2) | 0.0283 (2) | 0.0256 (2) | −0.00190 (17) | 0.00290 (17) | −0.00472 (18) |
O3 | 0.0361 (7) | 0.0248 (7) | 0.0485 (8) | −0.0034 (6) | 0.0094 (6) | −0.0059 (6) |
O1 | 0.0275 (6) | 0.0383 (8) | 0.0366 (7) | −0.0025 (6) | 0.0121 (6) | 0.0011 (6) |
O2 | 0.0379 (8) | 0.0539 (9) | 0.0241 (7) | −0.0015 (7) | 0.0002 (6) | −0.0076 (6) |
C1 | 0.0246 (8) | 0.0262 (9) | 0.0268 (9) | 0.0009 (7) | 0.0055 (7) | −0.0019 (7) |
C2 | 0.0228 (8) | 0.0204 (8) | 0.0306 (9) | 0.0022 (7) | 0.0049 (7) | −0.0040 (7) |
C3 | 0.0249 (8) | 0.0248 (9) | 0.0288 (9) | −0.0013 (7) | 0.0041 (7) | 0.0009 (7) |
C4 | 0.0302 (9) | 0.0274 (9) | 0.0335 (10) | 0.0026 (7) | −0.0015 (8) | −0.0010 (8) |
C5 | 0.0281 (9) | 0.0365 (11) | 0.0406 (11) | 0.0008 (8) | −0.0059 (8) | −0.0020 (9) |
C6 | 0.0216 (9) | 0.0370 (11) | 0.0485 (12) | −0.0022 (8) | 0.0055 (8) | −0.0028 (9) |
C7 | 0.0257 (9) | 0.0272 (9) | 0.0337 (10) | 0.0018 (7) | 0.0085 (7) | −0.0020 (8) |
C8 | 0.0308 (9) | 0.0299 (10) | 0.0309 (10) | 0.0026 (8) | 0.0086 (8) | −0.0025 (8) |
C9 | 0.0441 (12) | 0.0477 (13) | 0.0345 (11) | −0.0005 (10) | −0.0063 (9) | 0.0054 (10) |
C10 | 0.0471 (12) | 0.0446 (12) | 0.0314 (11) | −0.0004 (10) | 0.0138 (9) | 0.0041 (9) |
C11 | 0.0192 (8) | 0.0286 (9) | 0.0216 (8) | 0.0003 (7) | 0.0001 (6) | −0.0013 (7) |
C12 | 0.0248 (9) | 0.0302 (10) | 0.0294 (9) | 0.0003 (7) | 0.0006 (7) | 0.0031 (8) |
C13 | 0.0291 (9) | 0.0438 (12) | 0.0292 (10) | −0.0006 (8) | 0.0076 (8) | 0.0038 (8) |
C14 | 0.0286 (10) | 0.0431 (12) | 0.0341 (10) | 0.0044 (8) | 0.0048 (8) | −0.0092 (9) |
C15 | 0.0308 (9) | 0.0290 (10) | 0.0386 (11) | 0.0035 (8) | 0.0006 (8) | −0.0033 (8) |
C16 | 0.0235 (8) | 0.0279 (9) | 0.0275 (9) | −0.0015 (7) | −0.0018 (7) | −0.0006 (7) |
C17 | 0.0418 (11) | 0.0302 (10) | 0.0401 (11) | −0.0007 (8) | 0.0053 (9) | 0.0076 (9) |
S2 | 0.0236 (2) | 0.0282 (2) | 0.0292 (2) | −0.00071 (17) | 0.00328 (17) | 0.00437 (18) |
O4 | 0.0341 (8) | 0.0445 (9) | 0.0512 (9) | 0.0028 (6) | 0.0212 (7) | −0.0050 (7) |
O5 | 0.0304 (7) | 0.0246 (7) | 0.0543 (9) | 0.0007 (5) | 0.0106 (6) | 0.0034 (6) |
O6 | 0.0377 (8) | 0.0534 (9) | 0.0292 (7) | −0.0056 (7) | −0.0015 (6) | 0.0109 (6) |
C29 | 0.0284 (9) | 0.0278 (9) | 0.0249 (9) | −0.0003 (7) | −0.0010 (7) | −0.0017 (7) |
C18 | 0.0247 (8) | 0.0273 (9) | 0.0301 (9) | −0.0007 (7) | 0.0074 (7) | −0.0001 (7) |
C19 | 0.0202 (8) | 0.0223 (9) | 0.0370 (10) | −0.0015 (7) | 0.0059 (7) | −0.0001 (7) |
C20 | 0.0236 (8) | 0.0244 (9) | 0.0366 (10) | −0.0011 (7) | 0.0020 (7) | −0.0027 (8) |
C21 | 0.0319 (10) | 0.0284 (10) | 0.0473 (12) | −0.0030 (8) | −0.0069 (9) | −0.0045 (9) |
C22 | 0.0265 (10) | 0.0380 (12) | 0.0736 (16) | 0.0032 (9) | −0.0128 (10) | −0.0057 (11) |
C23 | 0.0207 (9) | 0.0381 (12) | 0.0781 (17) | 0.0032 (8) | 0.0084 (10) | −0.0052 (11) |
C24 | 0.0269 (9) | 0.0319 (10) | 0.0483 (12) | −0.0003 (8) | 0.0118 (9) | −0.0051 (9) |
C25 | 0.0379 (11) | 0.0358 (11) | 0.0382 (11) | −0.0013 (9) | 0.0157 (9) | 0.0000 (9) |
C26 | 0.0538 (14) | 0.0554 (15) | 0.0465 (13) | 0.0008 (12) | −0.0190 (11) | −0.0091 (11) |
C27 | 0.0671 (16) | 0.0598 (16) | 0.0365 (12) | 0.0019 (13) | 0.0226 (11) | −0.0050 (11) |
C28 | 0.0190 (8) | 0.0277 (9) | 0.0234 (8) | −0.0006 (7) | 0.0003 (6) | 0.0015 (7) |
C30 | 0.0334 (10) | 0.0281 (10) | 0.0339 (10) | −0.0045 (8) | −0.0009 (8) | 0.0032 (8) |
C31 | 0.0286 (9) | 0.0390 (11) | 0.0344 (10) | −0.0030 (8) | 0.0050 (8) | 0.0095 (8) |
C32 | 0.0306 (10) | 0.0407 (11) | 0.0336 (10) | 0.0030 (8) | 0.0108 (8) | −0.0004 (9) |
C33 | 0.0247 (9) | 0.0280 (9) | 0.0348 (10) | 0.0019 (7) | 0.0061 (7) | −0.0022 (8) |
C34 | 0.0689 (15) | 0.0323 (11) | 0.0366 (11) | −0.0067 (10) | 0.0157 (11) | −0.0113 (9) |
S1—O2 | 1.4295 (14) | S2—O6 | 1.4309 (14) |
S1—O3 | 1.4373 (14) | S2—O5 | 1.4378 (14) |
S1—C1 | 1.7379 (18) | S2—C18 | 1.7351 (18) |
S1—C11 | 1.7754 (17) | S2—C28 | 1.7719 (17) |
O1—C8 | 1.369 (2) | O4—C25 | 1.366 (2) |
O1—C7 | 1.380 (2) | O4—C24 | 1.380 (2) |
C1—C8 | 1.357 (2) | C29—C30 | 1.392 (3) |
C1—C2 | 1.449 (2) | C29—C28 | 1.401 (2) |
C2—C7 | 1.389 (2) | C29—C34 | 1.497 (3) |
C2—C3 | 1.391 (2) | C18—C25 | 1.358 (3) |
C3—C4 | 1.386 (2) | C18—C19 | 1.443 (2) |
C3—H3 | 0.9500 | C19—C24 | 1.391 (2) |
C4—C5 | 1.404 (3) | C19—C20 | 1.394 (2) |
C4—C9 | 1.510 (3) | C20—C21 | 1.384 (2) |
C5—C6 | 1.378 (3) | C20—H20 | 0.9500 |
C5—H5 | 0.9500 | C21—C22 | 1.405 (3) |
C6—C7 | 1.377 (3) | C21—C26 | 1.506 (3) |
C6—H6 | 0.9500 | C22—C23 | 1.376 (3) |
C8—C10 | 1.486 (3) | C22—H22 | 0.9500 |
C9—H9A | 0.9800 | C23—C24 | 1.377 (3) |
C9—H9B | 0.9800 | C23—H23 | 0.9500 |
C9—H9C | 0.9800 | C25—C27 | 1.485 (3) |
C10—H10A | 0.9800 | C26—H26A | 0.9800 |
C10—H10B | 0.9800 | C26—H26B | 0.9800 |
C10—H10C | 0.9800 | C26—H26C | 0.9800 |
C11—C12 | 1.390 (2) | C27—H27A | 0.9800 |
C11—C16 | 1.400 (3) | C27—H27B | 0.9800 |
C12—C13 | 1.382 (3) | C27—H27C | 0.9800 |
C12—H12 | 0.9500 | C28—C33 | 1.392 (2) |
C13—C14 | 1.373 (3) | C30—C31 | 1.378 (3) |
C13—H13 | 0.9500 | C30—H30 | 0.9500 |
C14—C15 | 1.383 (3) | C31—C32 | 1.379 (3) |
C14—H14 | 0.9500 | C31—H31 | 0.9500 |
C15—C16 | 1.393 (3) | C32—C33 | 1.382 (3) |
C15—H15 | 0.9500 | C32—H32 | 0.9500 |
C16—C17 | 1.508 (3) | C33—H33 | 0.9500 |
C17—H17A | 0.9800 | C34—H34A | 0.9800 |
C17—H17B | 0.9800 | C34—H34B | 0.9800 |
C17—H17C | 0.9800 | C34—H34C | 0.9800 |
O2—S1—O3 | 118.85 (9) | O6—S2—O5 | 118.11 (9) |
O2—S1—C1 | 108.81 (9) | O6—S2—C18 | 108.77 (9) |
O3—S1—C1 | 107.34 (8) | O5—S2—C18 | 107.46 (8) |
O2—S1—C11 | 108.22 (8) | O6—S2—C28 | 109.53 (8) |
O3—S1—C11 | 106.82 (8) | O5—S2—C28 | 106.55 (8) |
C1—S1—C11 | 106.09 (8) | C18—S2—C28 | 105.72 (8) |
C8—O1—C7 | 106.99 (13) | C25—O4—C24 | 107.11 (14) |
C8—C1—C2 | 107.39 (15) | C30—C29—C28 | 116.58 (17) |
C8—C1—S1 | 127.81 (14) | C30—C29—C34 | 119.84 (17) |
C2—C1—S1 | 124.73 (13) | C28—C29—C34 | 123.57 (17) |
C7—C2—C3 | 119.39 (16) | C25—C18—C19 | 107.70 (16) |
C7—C2—C1 | 104.81 (16) | C25—C18—S2 | 127.13 (15) |
C3—C2—C1 | 135.76 (16) | C19—C18—S2 | 125.11 (13) |
C4—C3—C2 | 119.23 (17) | C24—C19—C20 | 118.89 (17) |
C4—C3—H3 | 120.4 | C24—C19—C18 | 104.65 (16) |
C2—C3—H3 | 120.4 | C20—C19—C18 | 136.46 (16) |
C3—C4—C5 | 119.14 (18) | C21—C20—C19 | 119.18 (17) |
C3—C4—C9 | 120.67 (17) | C21—C20—H20 | 120.4 |
C5—C4—C9 | 120.19 (17) | C19—C20—H20 | 120.4 |
C6—C5—C4 | 122.77 (18) | C20—C21—C22 | 119.5 (2) |
C6—C5—H5 | 118.6 | C20—C21—C26 | 120.71 (19) |
C4—C5—H5 | 118.6 | C22—C21—C26 | 119.77 (19) |
C7—C6—C5 | 116.35 (17) | C23—C22—C21 | 122.55 (19) |
C7—C6—H6 | 121.8 | C23—C22—H22 | 118.7 |
C5—C6—H6 | 121.8 | C21—C22—H22 | 118.7 |
C6—C7—O1 | 126.59 (16) | C22—C23—C24 | 116.24 (19) |
C6—C7—C2 | 123.11 (18) | C22—C23—H23 | 121.9 |
O1—C7—C2 | 110.30 (16) | C24—C23—H23 | 121.9 |
C1—C8—O1 | 110.52 (16) | C23—C24—O4 | 126.14 (18) |
C1—C8—C10 | 134.49 (18) | C23—C24—C19 | 123.6 (2) |
O1—C8—C10 | 114.99 (16) | O4—C24—C19 | 110.24 (17) |
C4—C9—H9A | 109.5 | C18—C25—O4 | 110.29 (17) |
C4—C9—H9B | 109.5 | C18—C25—C27 | 134.5 (2) |
H9A—C9—H9B | 109.5 | O4—C25—C27 | 115.18 (17) |
C4—C9—H9C | 109.5 | C21—C26—H26A | 109.5 |
H9A—C9—H9C | 109.5 | C21—C26—H26B | 109.5 |
H9B—C9—H9C | 109.5 | H26A—C26—H26B | 109.5 |
C8—C10—H10A | 109.5 | C21—C26—H26C | 109.5 |
C8—C10—H10B | 109.5 | H26A—C26—H26C | 109.5 |
H10A—C10—H10B | 109.5 | H26B—C26—H26C | 109.5 |
C8—C10—H10C | 109.5 | C25—C27—H27A | 109.5 |
H10A—C10—H10C | 109.5 | C25—C27—H27B | 109.5 |
H10B—C10—H10C | 109.5 | H27A—C27—H27B | 109.5 |
C12—C11—C16 | 121.63 (16) | C25—C27—H27C | 109.5 |
C12—C11—S1 | 116.08 (14) | H27A—C27—H27C | 109.5 |
C16—C11—S1 | 122.22 (13) | H27B—C27—H27C | 109.5 |
C13—C12—C11 | 120.27 (18) | C33—C28—C29 | 121.31 (16) |
C13—C12—H12 | 119.9 | C33—C28—S2 | 115.62 (14) |
C11—C12—H12 | 119.9 | C29—C28—S2 | 122.98 (14) |
C14—C13—C12 | 119.17 (18) | C31—C30—C29 | 122.19 (18) |
C14—C13—H13 | 120.4 | C31—C30—H30 | 118.9 |
C12—C13—H13 | 120.4 | C29—C30—H30 | 118.9 |
C13—C14—C15 | 120.40 (18) | C30—C31—C32 | 120.42 (18) |
C13—C14—H14 | 119.8 | C30—C31—H31 | 119.8 |
C15—C14—H14 | 119.8 | C32—C31—H31 | 119.8 |
C14—C15—C16 | 122.23 (18) | C31—C32—C33 | 119.08 (18) |
C14—C15—H15 | 118.9 | C31—C32—H32 | 120.5 |
C16—C15—H15 | 118.9 | C33—C32—H32 | 120.5 |
C15—C16—C11 | 116.27 (17) | C32—C33—C28 | 120.36 (18) |
C15—C16—C17 | 119.56 (17) | C32—C33—H33 | 119.8 |
C11—C16—C17 | 124.15 (16) | C28—C33—H33 | 119.8 |
C16—C17—H17A | 109.5 | C29—C34—H34A | 109.5 |
C16—C17—H17B | 109.5 | C29—C34—H34B | 109.5 |
H17A—C17—H17B | 109.5 | H34A—C34—H34B | 109.5 |
C16—C17—H17C | 109.5 | C29—C34—H34C | 109.5 |
H17A—C17—H17C | 109.5 | H34A—C34—H34C | 109.5 |
H17B—C17—H17C | 109.5 | H34B—C34—H34C | 109.5 |
Cg1 and Cg2 are the centroids of benzene rings C2–C7 and C19–C24, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C23—H23···O5i | 0.95 | 2.52 | 3.431 (3) | 162 |
C34—H34B···O2ii | 0.98 | 2.43 | 3.137 (2) | 129 |
C31—H31···Cg1ii | 0.95 | 2.93 | 3.773 (3) | 148 |
C14—H14···Cg2i | 0.95 | 3.00 | 3.876 (3) | 154 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) x, y+1, z. |
Cg1 and Cg2 are the centroids of benzene rings C2–C7 and C19–C24, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C23—H23···O5i | 0.95 | 2.52 | 3.431 (3) | 162 |
C34—H34B···O2ii | 0.98 | 2.43 | 3.137 (2) | 129 |
C31—H31···Cg1ii | 0.95 | 2.93 | 3.773 (3) | 148 |
C14—H14···Cg2i | 0.95 | 3.00 | 3.876 (3) | 154 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) x, y+1, z. |
Acknowledgements
The X-ray centre of Gyeongsang National University is acknowledged for providing access to the single-crystal diffractometer.
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.
As part of our continuing program on benzofuran derivatives (Choi & Lee, 2014), we report herein on the crystal structure of the title compound which crystallizes with two symmetrically independent molecules (A and B) in the asymmetric unit.
In the title molecules (A and B; Fig. 1), the benzofuran units are essentially planar, with mean deviations of 0.013 (1) and 0.009 (1) Å for A and B, respectively, from the mean planes defined by the nine constituent non-H atoms. The dihedral angles formed by the benzofuran ring systems and the 2-methylphenyl rings are 83.88 (5) and 86.94 (5)° for A and B, respectively.
In the crystal, the B molecules are linked into a chain along the b axis direction by C—H···O hydrogen bonds (Table 1 and Fig. 2). The A molecules are connected on either side of this chain by further C-H···O hydrogen bonds (Table 1). These chains are linked via C—H···π interactions forming sheets parallel to (100); see Table 1. There are also very weak π···π interactions present (Fig. 3) involving 2-methylphenyl rings of neighbouring A and B molecules [Cg3···Cg7i = 3.925 (11) Å, where Cg3 and Cg7 are the centroids of rings C11-C16 and C28-C33; symmetry code: (i) = x, -y+3/2, z+1/2].