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The title compound, C
10H
9ClO
2S, was prepared by the oxidation of 5-chloro-2-methyl-3-methylsulfanyl-1-benzofuran using 3-chloroperbenzoic acid. The benzofuran ring system is almost planar. No π–π or —CH
2—H
π interactions were observed.
Supporting information
CCDC reference: 636826
Key indicators
- Single-crystal X-ray study
- T = 173 K
- Mean (C-C)= 0.004 Å
- R factor = 0.053
- wR factor = 0.112
- Data-to-parameter ratio = 17.7
checkCIF/PLATON results
No syntax errors found
No errors found in this datablock
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
5-Chloro-2-methyl-3-methylsulfinyl-1-benzofuran
top
Crystal data top
C10H9ClO2S | F(000) = 472 |
Mr = 228.68 | Dx = 1.456 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -p_2yn | Cell parameters from 3496 reflections |
a = 5.1413 (3) Å | θ = 2.5–28.2° |
b = 16.589 (1) Å | µ = 0.54 mm−1 |
c = 12.2756 (7) Å | T = 173 K |
β = 94.689 (1)° | Block, colorless |
V = 1043.47 (11) Å3 | 0.52 × 0.43 × 0.12 mm |
Z = 4 | |
Data collection top
Bruker SMART CCD diffractometer | 2269 independent reflections |
Radiation source: fine-focus sealed tube | 1999 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.020 |
Detector resolution: 10.00 pixels mm-1 | θmax = 27.0°, θmin = 2.5° |
φ and ω scans | h = −6→6 |
Absorption correction: multi-scan (SADABS; Sheldrick, 1999) | k = −17→21 |
Tmin = 0.762, Tmax = 0.945 | l = −15→11 |
6206 measured reflections | |
Refinement top
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)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.112 | H-atom parameters constrained |
S = 1.20 | w = 1/[σ2(Fo2) + (0.0334P)2 + 1.1659P] where P = (Fo2 + 2Fc2)/3 |
2269 reflections | (Δ/σ)max < 0.001 |
128 parameters | Δρmax = 0.34 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
Special details top
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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
Cl | −0.45775 (15) | 0.60576 (5) | 0.60414 (6) | 0.0468 (2) | |
S | 0.10989 (13) | 0.93017 (4) | 0.66595 (5) | 0.02954 (18) | |
O1 | 0.3573 (3) | 0.76547 (11) | 0.88122 (14) | 0.0318 (4) | |
O2 | −0.1802 (4) | 0.93436 (12) | 0.63874 (17) | 0.0389 (5) | |
C1 | −0.2097 (5) | 0.65217 (17) | 0.6879 (2) | 0.0315 (6) | |
C2 | −0.1484 (5) | 0.73138 (16) | 0.6676 (2) | 0.0287 (5) | |
H2 | −0.2349 | 0.7603 | 0.6107 | 0.034* | |
C3 | 0.0503 (5) | 0.76605 (15) | 0.73673 (19) | 0.0253 (5) | |
C4 | 0.1728 (5) | 0.84407 (15) | 0.7477 (2) | 0.0258 (5) | |
C5 | 0.3502 (5) | 0.84101 (16) | 0.8352 (2) | 0.0291 (5) | |
C6 | 0.1724 (5) | 0.71995 (16) | 0.8206 (2) | 0.0282 (5) | |
C7 | 0.1116 (5) | 0.64081 (17) | 0.8405 (2) | 0.0344 (6) | |
H7 | 0.1985 | 0.6117 | 0.8971 | 0.041* | |
C8 | −0.0849 (5) | 0.60683 (17) | 0.7722 (2) | 0.0345 (6) | |
H8 | −0.1340 | 0.5536 | 0.7824 | 0.041* | |
C9 | 0.5341 (6) | 0.90107 (19) | 0.8883 (2) | 0.0399 (7) | |
H9A | 0.7093 | 0.8876 | 0.8734 | 0.060* | |
H9B | 0.5203 | 0.9006 | 0.9658 | 0.060* | |
H9C | 0.4914 | 0.9538 | 0.8599 | 0.060* | |
C10 | 0.2426 (5) | 0.89403 (19) | 0.5453 (2) | 0.0365 (6) | |
H10A | 0.4289 | 0.8900 | 0.5580 | 0.044* | |
H10B | 0.1993 | 0.9308 | 0.4862 | 0.044* | |
H10C | 0.1711 | 0.8419 | 0.5269 | 0.044* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
Cl | 0.0416 (4) | 0.0501 (5) | 0.0479 (4) | −0.0178 (3) | −0.0013 (3) | −0.0097 (4) |
S | 0.0325 (3) | 0.0233 (3) | 0.0320 (3) | −0.0010 (3) | −0.0024 (2) | 0.0035 (3) |
O1 | 0.0326 (10) | 0.0369 (10) | 0.0248 (9) | −0.0016 (8) | −0.0042 (7) | 0.0049 (8) |
O2 | 0.0314 (10) | 0.0341 (11) | 0.0508 (12) | 0.0094 (8) | 0.0020 (9) | 0.0062 (9) |
C1 | 0.0282 (12) | 0.0356 (15) | 0.0310 (13) | −0.0049 (11) | 0.0046 (10) | −0.0064 (11) |
C2 | 0.0274 (12) | 0.0321 (14) | 0.0258 (12) | 0.0010 (11) | −0.0016 (10) | 0.0007 (11) |
C3 | 0.0261 (12) | 0.0260 (13) | 0.0241 (12) | 0.0014 (10) | 0.0037 (9) | 0.0011 (10) |
C4 | 0.0273 (12) | 0.0258 (12) | 0.0241 (12) | −0.0002 (10) | 0.0009 (9) | 0.0014 (10) |
C5 | 0.0299 (13) | 0.0331 (14) | 0.0243 (12) | −0.0023 (11) | 0.0021 (10) | 0.0012 (11) |
C6 | 0.0271 (12) | 0.0323 (14) | 0.0251 (12) | 0.0011 (11) | 0.0008 (10) | 0.0016 (10) |
C7 | 0.0391 (15) | 0.0316 (15) | 0.0326 (14) | 0.0046 (12) | 0.0028 (11) | 0.0080 (11) |
C8 | 0.0409 (15) | 0.0264 (13) | 0.0372 (15) | −0.0035 (12) | 0.0099 (12) | 0.0021 (12) |
C9 | 0.0400 (15) | 0.0491 (18) | 0.0294 (14) | −0.0120 (13) | −0.0054 (12) | −0.0001 (13) |
C10 | 0.0323 (14) | 0.0483 (17) | 0.0288 (13) | 0.0037 (12) | 0.0026 (11) | 0.0102 (13) |
Geometric parameters (Å, º) top
Cl—C1 | 1.750 (3) | C4—C5 | 1.352 (3) |
S—O2 | 1.503 (2) | C5—C9 | 1.487 (4) |
S—C4 | 1.760 (3) | C6—C7 | 1.376 (4) |
S—C10 | 1.784 (3) | C7—C8 | 1.379 (4) |
O1—C5 | 1.374 (3) | C7—H7 | 0.9300 |
O1—C6 | 1.383 (3) | C8—H8 | 0.9300 |
C1—C2 | 1.379 (4) | C9—H9A | 0.9600 |
C1—C8 | 1.393 (4) | C9—H9B | 0.9600 |
C2—C3 | 1.397 (3) | C9—H9C | 0.9600 |
C2—H2 | 0.9300 | C10—H10A | 0.9600 |
C3—C6 | 1.391 (3) | C10—H10B | 0.9600 |
C3—C4 | 1.441 (4) | C10—H10C | 0.9600 |
| | | |
O2—S—C4 | 107.27 (12) | C7—C6—C3 | 124.1 (2) |
O2—S—C10 | 105.72 (13) | O1—C6—C3 | 110.3 (2) |
C4—S—C10 | 97.78 (13) | C6—C7—C8 | 116.6 (2) |
C5—O1—C6 | 106.44 (19) | C6—C7—H7 | 121.7 |
C2—C1—C8 | 123.4 (2) | C8—C7—H7 | 121.7 |
C2—C1—Cl | 118.7 (2) | C7—C8—C1 | 120.1 (3) |
C8—C1—Cl | 117.9 (2) | C7—C8—H8 | 120.0 |
C1—C2—C3 | 116.7 (2) | C1—C8—H8 | 120.0 |
C1—C2—H2 | 121.6 | C5—C9—H9A | 109.5 |
C3—C2—H2 | 121.6 | C5—C9—H9B | 109.5 |
C6—C3—C2 | 119.1 (2) | H9A—C9—H9B | 109.5 |
C6—C3—C4 | 104.9 (2) | C5—C9—H9C | 109.5 |
C2—C3—C4 | 135.9 (2) | H9A—C9—H9C | 109.5 |
C5—C4—C3 | 107.6 (2) | H9B—C9—H9C | 109.5 |
C5—C4—S | 124.3 (2) | S—C10—H10A | 109.5 |
C3—C4—S | 128.11 (18) | S—C10—H10B | 109.5 |
C4—C5—O1 | 110.8 (2) | H10A—C10—H10B | 109.5 |
C4—C5—C9 | 133.4 (3) | S—C10—H10C | 109.5 |
O1—C5—C9 | 115.9 (2) | H10A—C10—H10C | 109.5 |
C7—C6—O1 | 125.6 (2) | H10B—C10—H10C | 109.5 |
| | | |
C8—C1—C2—C3 | 0.0 (4) | S—C4—C5—C9 | 0.0 (4) |
Cl—C1—C2—C3 | 179.80 (19) | C6—O1—C5—C4 | −1.1 (3) |
C1—C2—C3—C6 | −0.2 (4) | C6—O1—C5—C9 | 179.6 (2) |
C1—C2—C3—C4 | −178.7 (3) | C5—O1—C6—C7 | −178.5 (3) |
C6—C3—C4—C5 | −1.2 (3) | C5—O1—C6—C3 | 0.3 (3) |
C2—C3—C4—C5 | 177.5 (3) | C2—C3—C6—C7 | 0.4 (4) |
C6—C3—C4—S | 179.4 (2) | C4—C3—C6—C7 | 179.4 (3) |
C2—C3—C4—S | −1.9 (5) | C2—C3—C6—O1 | −178.4 (2) |
O2—S—C4—C5 | −139.9 (2) | C4—C3—C6—O1 | 0.6 (3) |
C10—S—C4—C5 | 110.9 (2) | O1—C6—C7—C8 | 178.1 (2) |
O2—S—C4—C3 | 39.4 (3) | C3—C6—C7—C8 | −0.5 (4) |
C10—S—C4—C3 | −69.8 (2) | C6—C7—C8—C1 | 0.3 (4) |
C3—C4—C5—O1 | 1.4 (3) | C2—C1—C8—C7 | −0.1 (4) |
S—C4—C5—O1 | −179.14 (17) | Cl—C1—C8—C7 | −179.9 (2) |
C3—C4—C5—C9 | −179.4 (3) | | |
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