Literature DB >> 25484818

Crystal structure of 2,5-dimethyl-3-(2-methyl-phenyl-sulfon-yl)-1-benzo-furan.

Hong Dae Choi1, Uk Lee2.   

Abstract

The title compound, C17H16O3S, crystallized with two independent mol-ecules (A and B) in the asymmetric unit. The dihedral angle between the benzo-furan ring system [r.m.s. deviation of 0.013 (1) for A and 0.009 (1) Å for B] and the 2-methyl-phenyl ring is 83.88 (5) for A and 86.94 (5)° for B. In the crystal, the B mol-ecules are linked into a chain along the b-axis direction by C-H⋯O hydrogen bonds. The A mol-ecules are connected on either side of this chain by further C-H⋯O hydrogen bonds. These chains are linked via C-H⋯π inter-actions, forming sheets parallel to (100). There are also very weak π-π inter-actions present [centroid-centroid distance = 3.925 (11) Å] involvingthe 2-methyl-phenyl rings of neighbouring A and B mol-ecules.

Entities:  

Keywords:  2-methyl­phen­yl; C—H⋯O hydrogen bonds; C—H⋯π inter­actions; benzo­furan; crystal structure; sulfon­yl; π–π inter­actions

Year:  2014        PMID: 25484818      PMCID: PMC4257330          DOI: 10.1107/S1600536814022788

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For a related structure and background to benzo­furan deriv­atives, see: Choi & Lee (2014 ▶). For further synthetic details, see: Choi et al. (1999 ▶).

Experimental

Crystal data

C17H16O3S M = 300.36 Monoclinic, a = 16.7338 (4) Å b = 8.0646 (2) Å c = 21.8195 (6) Å β = 95.296 (1)° V = 2932.00 (13) Å3 Z = 8 Mo Kα radiation μ = 0.23 mm−1 T = 173 K 0.58 × 0.37 × 0.23 mm

Data collection

Bruker SMART APEXII CCD diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.879, T max = 0.950 27259 measured reflections 6773 independent reflections 5313 reflections with I > 2σ(I) R int = 0.042

Refinement

R[F 2 > 2σ(F 2)] = 0.043 wR(F 2) = 0.118 S = 1.04 6773 reflections 385 parameters H-atom parameters constrained Δρmax = 0.34 e Å−3 Δρmin = −0.44 e Å−3

Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: 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. Crystal structure: contains datablock(s) I. DOI: 10.1107/S1600536814022788/su5004sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536814022788/su5004Isup2.hkl Click here for additional data file. Supporting information file. DOI: 10.1107/S1600536814022788/su5004Isup3.cml Click here for additional data file. . DOI: 10.1107/S1600536814022788/su5004fig1.tif 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. Click here for additional data file. x y z x y z x y z x y z . DOI: 10.1107/S1600536814022788/su5004fig2.tif A view of the C—H⋯O inter­actions (dashed lines) in the crystal structure 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 + , −z + ; (ii) x, y + 1, z; (iii) −x, y − , −z + ; (iv) x, y − 1, z]. Click here for additional data file. x y z x y z . DOI: 10.1107/S1600536814022788/su5004fig3.tif A view of the C—H⋯π and π–π inter­actions (dashed lines) in the crystal structure 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 + , z − ; (ii) x, −y + , z + ]. CCDC reference: 1029621 Additional supporting information: crystallographic information; 3D view; checkCIF report
C17H16O3SF(000) = 1264
Mr = 300.36Dx = 1.361 Mg m3
Monoclinic, P21/cMelting point = 386–385 K
Hall symbol: -P 2ybcMo Kα radiation, λ = 0.71073 Å
a = 16.7338 (4) ÅCell parameters from 5209 reflections
b = 8.0646 (2) Åθ = 2.3–26.6°
c = 21.8195 (6) ŵ = 0.23 mm1
β = 95.296 (1)°T = 173 K
V = 2932.00 (13) Å3Block, colourless
Z = 80.58 × 0.37 × 0.23 mm
Bruker SMART APEXII CCD diffractometer6773 independent reflections
Radiation source: rotating anode5313 reflections with I > 2σ(I)
Graphite multilayer monochromatorRint = 0.042
Detector resolution: 10.0 pixels mm-1θmax = 27.6°, θmin = 1.9°
φ and ω scansh = −21→21
Absorption correction: multi-scan (SADABS; Bruker, 2009)k = −9→10
Tmin = 0.879, Tmax = 0.950l = −23→28
27259 measured reflections
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.043Hydrogen site location: difference Fourier map
wR(F2) = 0.118H-atom parameters constrained
S = 1.04w = 1/[σ2(Fo2) + (0.056P)2 + 1.1004P] where P = (Fo2 + 2Fc2)/3
6773 reflections(Δ/σ)max = 0.001
385 parametersΔρmax = 0.34 e Å3
0 restraintsΔρmin = −0.44 e Å3
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.
xyzUiso*/Ueq
S10.29003 (3)0.10514 (6)0.48076 (2)0.02658 (12)
O30.28718 (8)−0.06396 (16)0.50124 (6)0.0361 (3)
O10.51121 (7)0.27240 (17)0.48421 (6)0.0336 (3)
O20.26309 (8)0.14295 (19)0.41824 (6)0.0388 (3)
C10.38848 (10)0.1730 (2)0.49575 (8)0.0257 (4)
C20.43612 (10)0.1551 (2)0.55426 (8)0.0245 (4)
C30.42259 (10)0.0982 (2)0.61259 (8)0.0261 (4)
H30.37180.05420.62010.031*
C40.48413 (11)0.1065 (2)0.65957 (9)0.0306 (4)
C50.55882 (11)0.1708 (3)0.64695 (9)0.0356 (4)
H50.60080.17570.67940.043*
C60.57388 (11)0.2272 (3)0.58951 (10)0.0355 (4)
H60.62490.26940.58150.043*
C70.51090 (10)0.2191 (2)0.54429 (8)0.0285 (4)
C80.43609 (11)0.2433 (2)0.45585 (8)0.0302 (4)
C90.47128 (13)0.0478 (3)0.72362 (9)0.0427 (5)
H9A0.41650.07460.73270.064*
H9B0.50970.10320.75350.064*
H9C0.4794−0.07240.72620.064*
C100.42443 (13)0.2938 (3)0.39015 (9)0.0404 (5)
H10A0.45540.22020.36560.061*
H10B0.44280.40830.38600.061*
H10C0.36740.28630.37560.061*
C110.23229 (9)0.2235 (2)0.52923 (8)0.0232 (3)
C120.19580 (10)0.1353 (2)0.57375 (8)0.0283 (4)
H120.20520.01960.57840.034*
C130.14589 (11)0.2152 (3)0.61129 (9)0.0337 (4)
H130.12110.15530.64190.040*
C140.13262 (11)0.3823 (3)0.60383 (9)0.0351 (4)
H140.09780.43810.62900.042*
C150.16958 (11)0.4699 (2)0.55985 (9)0.0330 (4)
H150.15970.58560.55570.040*
C160.22088 (10)0.3944 (2)0.52148 (8)0.0265 (4)
C170.26127 (12)0.4981 (3)0.47580 (9)0.0373 (5)
H17A0.24460.61400.47900.056*
H17B0.24580.45750.43410.056*
H17C0.31960.49010.48460.056*
S20.22038 (3)0.67798 (6)0.26437 (2)0.02693 (12)
O40.00302 (8)0.83199 (19)0.28806 (7)0.0422 (4)
O50.22026 (8)0.51558 (16)0.23717 (7)0.0360 (3)
O60.25599 (8)0.69703 (19)0.32615 (6)0.0404 (4)
C290.27854 (10)0.9817 (2)0.22581 (8)0.0272 (4)
C180.12153 (10)0.7450 (2)0.26076 (8)0.0271 (4)
C190.06680 (10)0.7498 (2)0.20564 (8)0.0263 (4)
C200.07067 (10)0.7165 (2)0.14330 (8)0.0282 (4)
H200.11900.67670.12890.034*
C210.00326 (11)0.7420 (2)0.10269 (10)0.0365 (5)
C22−0.06806 (12)0.7977 (3)0.12514 (12)0.0471 (6)
H22−0.11410.81360.09690.057*
C23−0.07384 (12)0.8299 (3)0.18648 (12)0.0454 (6)
H23−0.12250.86690.20120.054*
C24−0.00521 (11)0.8056 (2)0.22530 (10)0.0352 (4)
C250.08057 (12)0.7949 (3)0.30844 (9)0.0365 (5)
C260.00614 (15)0.7143 (3)0.03466 (10)0.0534 (6)
H26A0.00720.82160.01370.080*
H26B−0.04140.65200.01840.080*
H26C0.05450.65140.02760.080*
C270.10147 (16)0.8167 (3)0.37561 (10)0.0534 (6)
H27A0.07720.72730.39800.080*
H27B0.08110.92380.38860.080*
H27C0.15990.81350.38460.080*
C280.26882 (10)0.8114 (2)0.21492 (8)0.0235 (4)
C300.32432 (11)1.0681 (2)0.18626 (9)0.0321 (4)
H300.33251.18370.19240.038*
C310.35822 (11)0.9915 (3)0.13847 (9)0.0339 (4)
H310.39031.05390.11310.041*
C320.34591 (11)0.8247 (3)0.12726 (9)0.0345 (4)
H320.36800.77250.09360.041*
C330.30100 (10)0.7347 (2)0.16561 (8)0.0290 (4)
H330.29200.61970.15830.035*
C340.24201 (15)1.0720 (3)0.27628 (10)0.0453 (5)
H34A0.25811.18890.27610.068*
H34B0.26061.02230.31600.068*
H34C0.18341.06410.26980.068*
U11U22U33U12U13U23
S10.0259 (2)0.0283 (2)0.0256 (2)−0.00190 (17)0.00290 (17)−0.00472 (18)
O30.0361 (7)0.0248 (7)0.0485 (8)−0.0034 (6)0.0094 (6)−0.0059 (6)
O10.0275 (6)0.0383 (8)0.0366 (7)−0.0025 (6)0.0121 (6)0.0011 (6)
O20.0379 (8)0.0539 (9)0.0241 (7)−0.0015 (7)0.0002 (6)−0.0076 (6)
C10.0246 (8)0.0262 (9)0.0268 (9)0.0009 (7)0.0055 (7)−0.0019 (7)
C20.0228 (8)0.0204 (8)0.0306 (9)0.0022 (7)0.0049 (7)−0.0040 (7)
C30.0249 (8)0.0248 (9)0.0288 (9)−0.0013 (7)0.0041 (7)0.0009 (7)
C40.0302 (9)0.0274 (9)0.0335 (10)0.0026 (7)−0.0015 (8)−0.0010 (8)
C50.0281 (9)0.0365 (11)0.0406 (11)0.0008 (8)−0.0059 (8)−0.0020 (9)
C60.0216 (9)0.0370 (11)0.0485 (12)−0.0022 (8)0.0055 (8)−0.0028 (9)
C70.0257 (9)0.0272 (9)0.0337 (10)0.0018 (7)0.0085 (7)−0.0020 (8)
C80.0308 (9)0.0299 (10)0.0309 (10)0.0026 (8)0.0086 (8)−0.0025 (8)
C90.0441 (12)0.0477 (13)0.0345 (11)−0.0005 (10)−0.0063 (9)0.0054 (10)
C100.0471 (12)0.0446 (12)0.0314 (11)−0.0004 (10)0.0138 (9)0.0041 (9)
C110.0192 (8)0.0286 (9)0.0216 (8)0.0003 (7)0.0001 (6)−0.0013 (7)
C120.0248 (9)0.0302 (10)0.0294 (9)0.0003 (7)0.0006 (7)0.0031 (8)
C130.0291 (9)0.0438 (12)0.0292 (10)−0.0006 (8)0.0076 (8)0.0038 (8)
C140.0286 (10)0.0431 (12)0.0341 (10)0.0044 (8)0.0048 (8)−0.0092 (9)
C150.0308 (9)0.0290 (10)0.0386 (11)0.0035 (8)0.0006 (8)−0.0033 (8)
C160.0235 (8)0.0279 (9)0.0275 (9)−0.0015 (7)−0.0018 (7)−0.0006 (7)
C170.0418 (11)0.0302 (10)0.0401 (11)−0.0007 (8)0.0053 (9)0.0076 (9)
S20.0236 (2)0.0282 (2)0.0292 (2)−0.00071 (17)0.00328 (17)0.00437 (18)
O40.0341 (8)0.0445 (9)0.0512 (9)0.0028 (6)0.0212 (7)−0.0050 (7)
O50.0304 (7)0.0246 (7)0.0543 (9)0.0007 (5)0.0106 (6)0.0034 (6)
O60.0377 (8)0.0534 (9)0.0292 (7)−0.0056 (7)−0.0015 (6)0.0109 (6)
C290.0284 (9)0.0278 (9)0.0249 (9)−0.0003 (7)−0.0010 (7)−0.0017 (7)
C180.0247 (8)0.0273 (9)0.0301 (9)−0.0007 (7)0.0074 (7)−0.0001 (7)
C190.0202 (8)0.0223 (9)0.0370 (10)−0.0015 (7)0.0059 (7)−0.0001 (7)
C200.0236 (8)0.0244 (9)0.0366 (10)−0.0011 (7)0.0020 (7)−0.0027 (8)
C210.0319 (10)0.0284 (10)0.0473 (12)−0.0030 (8)−0.0069 (9)−0.0045 (9)
C220.0265 (10)0.0380 (12)0.0736 (16)0.0032 (9)−0.0128 (10)−0.0057 (11)
C230.0207 (9)0.0381 (12)0.0781 (17)0.0032 (8)0.0084 (10)−0.0052 (11)
C240.0269 (9)0.0319 (10)0.0483 (12)−0.0003 (8)0.0118 (9)−0.0051 (9)
C250.0379 (11)0.0358 (11)0.0382 (11)−0.0013 (9)0.0157 (9)0.0000 (9)
C260.0538 (14)0.0554 (15)0.0465 (13)0.0008 (12)−0.0190 (11)−0.0091 (11)
C270.0671 (16)0.0598 (16)0.0365 (12)0.0019 (13)0.0226 (11)−0.0050 (11)
C280.0190 (8)0.0277 (9)0.0234 (8)−0.0006 (7)0.0003 (6)0.0015 (7)
C300.0334 (10)0.0281 (10)0.0339 (10)−0.0045 (8)−0.0009 (8)0.0032 (8)
C310.0286 (9)0.0390 (11)0.0344 (10)−0.0030 (8)0.0050 (8)0.0095 (8)
C320.0306 (10)0.0407 (11)0.0336 (10)0.0030 (8)0.0108 (8)−0.0004 (9)
C330.0247 (9)0.0280 (9)0.0348 (10)0.0019 (7)0.0061 (7)−0.0022 (8)
C340.0689 (15)0.0323 (11)0.0366 (11)−0.0067 (10)0.0157 (11)−0.0113 (9)
S1—O21.4295 (14)S2—O61.4309 (14)
S1—O31.4373 (14)S2—O51.4378 (14)
S1—C11.7379 (18)S2—C181.7351 (18)
S1—C111.7754 (17)S2—C281.7719 (17)
O1—C81.369 (2)O4—C251.366 (2)
O1—C71.380 (2)O4—C241.380 (2)
C1—C81.357 (2)C29—C301.392 (3)
C1—C21.449 (2)C29—C281.401 (2)
C2—C71.389 (2)C29—C341.497 (3)
C2—C31.391 (2)C18—C251.358 (3)
C3—C41.386 (2)C18—C191.443 (2)
C3—H30.9500C19—C241.391 (2)
C4—C51.404 (3)C19—C201.394 (2)
C4—C91.510 (3)C20—C211.384 (2)
C5—C61.378 (3)C20—H200.9500
C5—H50.9500C21—C221.405 (3)
C6—C71.377 (3)C21—C261.506 (3)
C6—H60.9500C22—C231.376 (3)
C8—C101.486 (3)C22—H220.9500
C9—H9A0.9800C23—C241.377 (3)
C9—H9B0.9800C23—H230.9500
C9—H9C0.9800C25—C271.485 (3)
C10—H10A0.9800C26—H26A0.9800
C10—H10B0.9800C26—H26B0.9800
C10—H10C0.9800C26—H26C0.9800
C11—C121.390 (2)C27—H27A0.9800
C11—C161.400 (3)C27—H27B0.9800
C12—C131.382 (3)C27—H27C0.9800
C12—H120.9500C28—C331.392 (2)
C13—C141.373 (3)C30—C311.378 (3)
C13—H130.9500C30—H300.9500
C14—C151.383 (3)C31—C321.379 (3)
C14—H140.9500C31—H310.9500
C15—C161.393 (3)C32—C331.382 (3)
C15—H150.9500C32—H320.9500
C16—C171.508 (3)C33—H330.9500
C17—H17A0.9800C34—H34A0.9800
C17—H17B0.9800C34—H34B0.9800
C17—H17C0.9800C34—H34C0.9800
O2—S1—O3118.85 (9)O6—S2—O5118.11 (9)
O2—S1—C1108.81 (9)O6—S2—C18108.77 (9)
O3—S1—C1107.34 (8)O5—S2—C18107.46 (8)
O2—S1—C11108.22 (8)O6—S2—C28109.53 (8)
O3—S1—C11106.82 (8)O5—S2—C28106.55 (8)
C1—S1—C11106.09 (8)C18—S2—C28105.72 (8)
C8—O1—C7106.99 (13)C25—O4—C24107.11 (14)
C8—C1—C2107.39 (15)C30—C29—C28116.58 (17)
C8—C1—S1127.81 (14)C30—C29—C34119.84 (17)
C2—C1—S1124.73 (13)C28—C29—C34123.57 (17)
C7—C2—C3119.39 (16)C25—C18—C19107.70 (16)
C7—C2—C1104.81 (16)C25—C18—S2127.13 (15)
C3—C2—C1135.76 (16)C19—C18—S2125.11 (13)
C4—C3—C2119.23 (17)C24—C19—C20118.89 (17)
C4—C3—H3120.4C24—C19—C18104.65 (16)
C2—C3—H3120.4C20—C19—C18136.46 (16)
C3—C4—C5119.14 (18)C21—C20—C19119.18 (17)
C3—C4—C9120.67 (17)C21—C20—H20120.4
C5—C4—C9120.19 (17)C19—C20—H20120.4
C6—C5—C4122.77 (18)C20—C21—C22119.5 (2)
C6—C5—H5118.6C20—C21—C26120.71 (19)
C4—C5—H5118.6C22—C21—C26119.77 (19)
C7—C6—C5116.35 (17)C23—C22—C21122.55 (19)
C7—C6—H6121.8C23—C22—H22118.7
C5—C6—H6121.8C21—C22—H22118.7
C6—C7—O1126.59 (16)C22—C23—C24116.24 (19)
C6—C7—C2123.11 (18)C22—C23—H23121.9
O1—C7—C2110.30 (16)C24—C23—H23121.9
C1—C8—O1110.52 (16)C23—C24—O4126.14 (18)
C1—C8—C10134.49 (18)C23—C24—C19123.6 (2)
O1—C8—C10114.99 (16)O4—C24—C19110.24 (17)
C4—C9—H9A109.5C18—C25—O4110.29 (17)
C4—C9—H9B109.5C18—C25—C27134.5 (2)
H9A—C9—H9B109.5O4—C25—C27115.18 (17)
C4—C9—H9C109.5C21—C26—H26A109.5
H9A—C9—H9C109.5C21—C26—H26B109.5
H9B—C9—H9C109.5H26A—C26—H26B109.5
C8—C10—H10A109.5C21—C26—H26C109.5
C8—C10—H10B109.5H26A—C26—H26C109.5
H10A—C10—H10B109.5H26B—C26—H26C109.5
C8—C10—H10C109.5C25—C27—H27A109.5
H10A—C10—H10C109.5C25—C27—H27B109.5
H10B—C10—H10C109.5H27A—C27—H27B109.5
C12—C11—C16121.63 (16)C25—C27—H27C109.5
C12—C11—S1116.08 (14)H27A—C27—H27C109.5
C16—C11—S1122.22 (13)H27B—C27—H27C109.5
C13—C12—C11120.27 (18)C33—C28—C29121.31 (16)
C13—C12—H12119.9C33—C28—S2115.62 (14)
C11—C12—H12119.9C29—C28—S2122.98 (14)
C14—C13—C12119.17 (18)C31—C30—C29122.19 (18)
C14—C13—H13120.4C31—C30—H30118.9
C12—C13—H13120.4C29—C30—H30118.9
C13—C14—C15120.40 (18)C30—C31—C32120.42 (18)
C13—C14—H14119.8C30—C31—H31119.8
C15—C14—H14119.8C32—C31—H31119.8
C14—C15—C16122.23 (18)C31—C32—C33119.08 (18)
C14—C15—H15118.9C31—C32—H32120.5
C16—C15—H15118.9C33—C32—H32120.5
C15—C16—C11116.27 (17)C32—C33—C28120.36 (18)
C15—C16—C17119.56 (17)C32—C33—H33119.8
C11—C16—C17124.15 (16)C28—C33—H33119.8
C16—C17—H17A109.5C29—C34—H34A109.5
C16—C17—H17B109.5C29—C34—H34B109.5
H17A—C17—H17B109.5H34A—C34—H34B109.5
C16—C17—H17C109.5C29—C34—H34C109.5
H17A—C17—H17C109.5H34A—C34—H34C109.5
H17B—C17—H17C109.5H34B—C34—H34C109.5
D—H···AD—HH···AD···AD—H···A
C23—H23···O5i0.952.523.431 (3)162
C34—H34B···O2ii0.982.433.137 (2)129
C31—H31···Cg1ii0.952.933.773 (3)148
C14—H14···Cg2i0.953.003.876 (3)154
Table 1

Hydrogen-bond geometry (, )

Cg1 and Cg2 are the centroids of benzene rings C2C7 and C19C24, respectively.

DHA DHHA D A DHA
C23H23O5i 0.952.523.431(3)162
C34H34BO2ii 0.982.433.137(2)129
C31H31Cg1ii 0.952.933.773(3)148
C14H14Cg2i 0.953.003.876(3)154

Symmetry codes: (i) ; (ii) .

  2 in total

1.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

2.  Crystal structure of 2,5-dimethyl-3-(3-methyl-phenyl-sulfon-yl)-1-benzo-furan.

Authors:  Hong Dae Choi; Uk Lee
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2014-08-30
  2 in total

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