organic compounds
(E)-3-[2-(4-Chlorophenylsulfonyl)vinyl]-6-methyl-4H-chromen-4-one
aDepartment of Physics, S. V. University, Tirupati 517 502, India, and bDepartment of Physics, Yangon University, Myanmar
*Correspondence e-mail: Thanzawoo06@gmail.com
In the title compound, C18H13ClO4S, the mean planes of the chlorophenyl ring and the S—C=C—C chain are oriented at angles of 52.7 (2) and 51.3 (2)°, respectively, with respect to the sulfonyl (O=S=O) plane. The dihedral angle between the mean planes of the chlorophenyl group and the benzopyran ring is 80.7 (1)°. The is stabilized by two intermolecular C—H⋯O interactions, forming centrosymmetrc dimers, which are linked via a second C—H⋯O interaction into a chain structure.
Related literature
For the biological properties of sulfonones and for related structures, see: Alonso et al. (2002); Raju et al. (1996); Chen et al. (1996); Mukundam (1990); Krishnaiah et al. (1995); Sethu Sankar et al. (2002). For bond-length data, see: Allen et al. (1987); Sethu Sankar et al. (2002). For double-bond character, see: Cruickshank (1961).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2007); cell SAINT (Bruker, 2007); 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, 1997); software used to prepare material for publication: enCIFer (Allen et al., 2004) and PARST (Nardelli, 1995)'.
Supporting information
https://doi.org/10.1107/S1600536809041300/su2142sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809041300/su2142Isup2.hkl
The title compound was synthesized accordng to the procedure descibed by (Mukundam, 1990). To a solution of 1.74 mg (0.01 mol) of 6-methyl-4-oxo-4H-1-benzopyran-3-carboxaldehyde and 2.35 mg (0.01 mol) of 4 chlorophenylsulfonylacetic acid in 10 ml of glacial acetic acid was added 0.2 ml of benzyl amine. The resulting solution was refluxed for 3 h. The reaction mixture was cooled and yielded 1.5 mg of the title compound. It was recrystallized from glacial acetic acid, affording colourless crystals (m.p.500–504 k), suitable for X-ray diffraction analysis.
All the H-atoms were included in calculated positions and treated as riding atoms: C—H (aromatic)= 0.93 Å, (C-methyl) C—H = 0.96 Å, with Uiso(H) = 1.2Ueq(C-aromatic) and = 1.5Ueq(C-methyl).
Sulfones are useful building blocks in the preparation and functionalization of a wide variety of products (Alonso et al., 2002). They are similarly to
showing strong in vitro and in vivo antibacterial activity, and for almost 60 years have been used successfully in medicine. Certain also display anti-bacterial and anti-fungal properties (Raju et al., 1996). The anti-fungal activity of some unsaturated has been found to be dependent upon the substituents and stereochemical effects (Chen et al., 1996). The title compound has been observed to display anti-fungal activity against curularia luneta and furasium oxysporum (Mukundam, 1990). The determination of the structure of the title compound was undertaken to study the conformation of the molecule and to contribute to the growing structural data becoming available for the characterization of the structure activity relationships.The molecular structure of the title compound is illustrated in Fig. 1. It is similar to the structures of the related compounds: (E)-6-Chloro-3-[2-(4-chlorophenylsulfonyl)ethenyl]-4-chromanone (I), (E)-6-Bromo-3-[2-(4-bromophenylsulfonyl)ethenyl]-4-chromanone (II), (i>E)-3-[2-(4-Chlorophenylsulfonyl)ethenyl]-6-methoxy-4-chromanone (III) (Raju et al., 1996), 3-[(2-(Phenylsulfonyl)ethenyl]-4H-1-benzopyran-4-one (IV) (Chen et al., 1996) and 3-[2-(4-Chlorophenylsulfonyl)ethenyl]-4H-1-benzopyran-4-one (V) (Krishnaiah et al., 1995). The bond lengths and angles are comparable with those observed for structures (I) - (V), but the dihedral angles are different. This is probably due to crystal packing effects and the presence of C-H···O hydrogen bonds. The bond distances reflect the electron delocalization of the O1—C2═C3—C9═C10 chain.
The mean S═O distance of 1.439 (3) Å is comparable with the reported value of 1.436 (2)Å (Sethu Sankar et al., 2002), and indicates double-bond character of over 60% (Cruickshank, 1961). The C-S distances are slightly different from those in the the related structures (I) - (V). This may reflect the different inductive effects of the chlorophenyl and the benzopyran units. The bond lengths S11-C10 [1.747 (4) Å], and S11-C12 [1.776 (4) Å], are in agreement, within experimental error, to the values found for S-C(aromatic) bonds, i.e. 1.763 (9)Å (Allen et al., 1987).
The chlorophenyl and the benzopyran rings are planar, with maximum deviations of 0.007 (3) and 0.014 (3) Å, respectively, and their mean planes are inclined to one another by 80.7 (1) °. The mean planes of the chlorophenyl group, and the ethane group with its immediate substituents, are oriented at angles of 52.0 (2) and 51.3 (2) °, respectively, with respect to the sulfonyl (O3═S11═O4) plane.
In the
of the title compound symmetry related molecules are linked via C-H···O interactions (Table 1), forming centrosymmetric dimers (via interaction C10-H10···O3). These in turn are linked via a second interaction (C2-H2···O2) to form a chain like structure (Fig. 2).For the biological properties of sulfonones and for related structures, see: Alonso et al. (2002); Raju et al. (1996); Chen et al. (1996); Mukundam (1990); Krishnaiah et al. (1995); Sethu Sankar et al. (2002). For bond-length data, see: Allen et al. (1987); Sethu Sankar et al. (2002). For double-bond character, see: Cruickshank (1961).
Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); 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, 1997); software used to prepare material for publication: enCIFer (Allen et al., 2004) and PARST (Nardelli, 1995)'.C18H13ClO4S | F(000) = 744 |
Mr = 360.79 | Dx = 1.453 Mg m−3 Dm = 1.45 Mg m−3 Dm measured by not measured |
Monoclinic, P2/c | Melting point: 500.15 K |
Hall symbol: -P 2yc | Mo Kα radiation, λ = 0.71073 Å |
a = 14.383 (3) Å | Cell parameters from 3859 reflections |
b = 9.656 (2) Å | θ = 2–25° |
c = 12.864 (2) Å | µ = 0.38 mm−1 |
β = 112.630 (2)° | T = 298 K |
V = 1649.0 (5) Å3 | Needle, colorless |
Z = 4 | 0.20 × 0.15 × 0.08 mm |
Bruker SMART CCD diffractometer | 2774 independent reflections |
Radiation source: fine-focus sealed tube | 2088 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.081 |
ω scans | θmax = 25.0°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −17→16 |
Tmin = 0.920, Tmax = 0.960 | k = −11→1 |
3643 measured reflections | l = −1→15 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.073 | H-atom parameters constrained |
wR(F2) = 0.245 | w = 1/[σ2(Fo2) + (0.1424P)2 + 0.7321P] where P = (Fo2 + 2Fc2)/3 |
S = 1.13 | (Δ/σ)max = 0.008 |
2774 reflections | Δρmax = 0.45 e Å−3 |
219 parameters | Δρmin = −0.63 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.010 (3) |
C18H13ClO4S | V = 1649.0 (5) Å3 |
Mr = 360.79 | Z = 4 |
Monoclinic, P2/c | Mo Kα radiation |
a = 14.383 (3) Å | µ = 0.38 mm−1 |
b = 9.656 (2) Å | T = 298 K |
c = 12.864 (2) Å | 0.20 × 0.15 × 0.08 mm |
β = 112.630 (2)° |
Bruker SMART CCD diffractometer | 2774 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2088 reflections with I > 2σ(I) |
Tmin = 0.920, Tmax = 0.960 | Rint = 0.081 |
3643 measured reflections |
R[F2 > 2σ(F2)] = 0.073 | 0 restraints |
wR(F2) = 0.245 | H-atom parameters constrained |
S = 1.13 | Δρmax = 0.45 e Å−3 |
2774 reflections | Δρmin = −0.63 e Å−3 |
219 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 | ||
S11 | 0.79047 (7) | 0.45722 (10) | 0.55267 (8) | 0.0653 (4) | |
Cl1 | 0.43852 (10) | 0.82582 (16) | 0.56710 (14) | 0.1059 (6) | |
O2 | 1.0746 (2) | 0.7324 (3) | 0.6813 (2) | 0.0788 (9) | |
C4' | 1.1219 (3) | 0.8837 (4) | 0.5657 (3) | 0.0574 (8) | |
C4 | 1.0592 (3) | 0.7751 (4) | 0.5861 (3) | 0.0616 (9) | |
C3 | 0.9782 (3) | 0.7252 (4) | 0.4844 (3) | 0.0583 (9) | |
O4 | 0.7593 (2) | 0.4008 (3) | 0.4412 (3) | 0.0777 (8) | |
C6 | 1.2619 (3) | 1.0455 (4) | 0.6351 (4) | 0.0722 (11) | |
C12 | 0.6889 (3) | 0.5579 (4) | 0.5576 (3) | 0.0613 (9) | |
O1 | 1.0265 (2) | 0.8753 (3) | 0.3664 (2) | 0.0728 (8) | |
C9 | 0.9046 (3) | 0.6224 (4) | 0.4845 (3) | 0.0636 (9) | |
H9 | 0.8661 | 0.5830 | 0.4152 | 0.076* | |
C2 | 0.9698 (3) | 0.7770 (4) | 0.3830 (3) | 0.0684 (10) | |
H2 | 0.9195 | 0.7399 | 0.3194 | 0.082* | |
C10 | 0.8861 (3) | 0.5783 (4) | 0.5725 (3) | 0.0629 (9) | |
H10 | 0.9238 | 0.6118 | 0.6442 | 0.075* | |
C8' | 1.1045 (3) | 0.9293 (4) | 0.4586 (3) | 0.0627 (9) | |
C8 | 1.1617 (3) | 1.0315 (5) | 0.4360 (4) | 0.0741 (11) | |
H8 | 1.1467 | 1.0619 | 0.3627 | 0.089* | |
C13 | 0.6932 (3) | 0.6080 (5) | 0.6603 (3) | 0.0722 (11) | |
H13 | 0.7475 | 0.5861 | 0.7263 | 0.087* | |
C16 | 0.5307 (3) | 0.6686 (5) | 0.4631 (4) | 0.0756 (11) | |
H16 | 0.4755 | 0.6884 | 0.3975 | 0.091* | |
O3 | 0.8228 (3) | 0.3653 (3) | 0.6485 (3) | 0.0856 (9) | |
C5 | 1.2020 (3) | 0.9448 (4) | 0.6535 (3) | 0.0660 (10) | |
H5 | 1.2156 | 0.9164 | 0.7270 | 0.079* | |
C7 | 1.2404 (3) | 1.0864 (5) | 0.5239 (4) | 0.0768 (12) | |
H7 | 1.2809 | 1.1527 | 0.5096 | 0.092* | |
C15 | 0.5361 (3) | 0.7201 (5) | 0.5646 (4) | 0.0753 (11) | |
C17 | 0.6081 (3) | 0.5870 (4) | 0.4594 (3) | 0.0670 (10) | |
H17 | 0.6057 | 0.5520 | 0.3911 | 0.080* | |
C14 | 0.6162 (3) | 0.6907 (5) | 0.6636 (4) | 0.0801 (12) | |
H14 | 0.6182 | 0.7262 | 0.7317 | 0.096* | |
C18 | 1.3464 (4) | 1.1129 (7) | 0.7322 (5) | 0.1089 (18) | |
H18A | 1.3531 | 1.0681 | 0.8014 | 0.163* | |
H18B | 1.3313 | 1.2092 | 0.7361 | 0.163* | |
H18C | 1.4083 | 1.1042 | 0.7208 | 0.163* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S11 | 0.0613 (7) | 0.0646 (7) | 0.0748 (7) | 0.0011 (4) | 0.0317 (5) | 0.0050 (4) |
Cl1 | 0.0822 (9) | 0.1144 (11) | 0.1406 (12) | 0.0215 (7) | 0.0644 (8) | 0.0071 (8) |
O2 | 0.0699 (17) | 0.113 (2) | 0.0547 (14) | −0.0154 (16) | 0.0252 (12) | 0.0102 (14) |
C4' | 0.0538 (19) | 0.069 (2) | 0.0583 (19) | 0.0042 (16) | 0.0315 (16) | −0.0014 (15) |
C4 | 0.0542 (19) | 0.082 (3) | 0.0558 (19) | 0.0068 (17) | 0.0296 (15) | 0.0023 (16) |
C3 | 0.057 (2) | 0.067 (2) | 0.0578 (18) | 0.0020 (16) | 0.0298 (16) | −0.0019 (15) |
O4 | 0.0782 (19) | 0.0796 (19) | 0.0824 (19) | −0.0013 (15) | 0.0389 (15) | −0.0088 (14) |
C6 | 0.058 (2) | 0.079 (3) | 0.084 (3) | −0.0046 (18) | 0.032 (2) | −0.009 (2) |
C12 | 0.056 (2) | 0.065 (2) | 0.070 (2) | −0.0070 (16) | 0.0308 (17) | 0.0014 (16) |
O1 | 0.0742 (18) | 0.095 (2) | 0.0545 (14) | −0.0101 (15) | 0.0307 (13) | 0.0027 (12) |
C9 | 0.061 (2) | 0.069 (2) | 0.066 (2) | 0.0088 (17) | 0.0309 (17) | −0.0005 (17) |
C2 | 0.069 (2) | 0.085 (3) | 0.0552 (19) | −0.004 (2) | 0.0284 (17) | −0.0076 (18) |
C10 | 0.055 (2) | 0.067 (2) | 0.071 (2) | 0.0021 (17) | 0.0300 (17) | 0.0010 (17) |
C8' | 0.060 (2) | 0.076 (2) | 0.063 (2) | 0.0023 (18) | 0.0347 (18) | −0.0033 (17) |
C8 | 0.075 (3) | 0.086 (3) | 0.074 (3) | 0.000 (2) | 0.043 (2) | 0.009 (2) |
C13 | 0.060 (2) | 0.093 (3) | 0.064 (2) | −0.005 (2) | 0.0241 (18) | −0.0007 (19) |
C16 | 0.057 (2) | 0.092 (3) | 0.076 (2) | −0.001 (2) | 0.0240 (19) | 0.011 (2) |
O3 | 0.084 (2) | 0.081 (2) | 0.094 (2) | 0.0081 (16) | 0.0366 (16) | 0.0270 (16) |
C5 | 0.058 (2) | 0.081 (3) | 0.064 (2) | 0.0021 (18) | 0.0292 (17) | 0.0012 (17) |
C7 | 0.072 (3) | 0.076 (3) | 0.099 (3) | −0.004 (2) | 0.051 (2) | −0.002 (2) |
C15 | 0.062 (2) | 0.078 (3) | 0.101 (3) | −0.003 (2) | 0.048 (2) | 0.005 (2) |
C17 | 0.061 (2) | 0.079 (3) | 0.063 (2) | −0.0004 (19) | 0.0264 (18) | 0.0054 (17) |
C14 | 0.072 (3) | 0.098 (3) | 0.081 (3) | −0.005 (2) | 0.041 (2) | −0.013 (2) |
C18 | 0.084 (3) | 0.123 (5) | 0.118 (4) | −0.038 (3) | 0.037 (3) | −0.019 (3) |
S11—O4 | 1.435 (3) | C9—H9 | 0.9300 |
S11—O3 | 1.443 (3) | C2—H2 | 0.9300 |
S11—C10 | 1.747 (4) | C10—H10 | 0.9300 |
S11—C12 | 1.776 (4) | C8'—C8 | 1.386 (6) |
Cl1—C15 | 1.746 (4) | C8—C7 | 1.362 (6) |
O2—C4 | 1.229 (4) | C8—H8 | 0.9300 |
C4'—C8' | 1.375 (5) | C13—C14 | 1.380 (6) |
C4'—C5 | 1.396 (5) | C13—H13 | 0.9300 |
C4'—C4 | 1.471 (5) | C16—C15 | 1.371 (6) |
C4—C3 | 1.459 (5) | C16—C17 | 1.379 (6) |
C3—C2 | 1.358 (5) | C16—H16 | 0.9300 |
C3—C9 | 1.451 (5) | C5—H5 | 0.9300 |
C6—C5 | 1.378 (5) | C7—H7 | 0.9300 |
C6—C7 | 1.400 (6) | C15—C14 | 1.378 (7) |
C6—C18 | 1.514 (7) | C17—H17 | 0.9300 |
C12—C17 | 1.377 (5) | C14—H14 | 0.9300 |
C12—C13 | 1.386 (5) | C18—H18A | 0.9600 |
O1—C2 | 1.322 (5) | C18—H18B | 0.9600 |
O1—C8' | 1.383 (5) | C18—H18C | 0.9600 |
C9—C10 | 1.329 (5) | ||
O4—S11—O3 | 119.6 (2) | C4'—C8'—C8 | 122.9 (4) |
O4—S11—C10 | 109.03 (18) | O1—C8'—C8 | 116.1 (3) |
O3—S11—C10 | 108.1 (2) | C7—C8—C8' | 118.4 (4) |
O4—S11—C12 | 107.37 (18) | C7—C8—H8 | 120.8 |
O3—S11—C12 | 107.75 (18) | C8'—C8—H8 | 120.8 |
C10—S11—C12 | 103.90 (18) | C14—C13—C12 | 119.3 (4) |
C8'—C4'—C5 | 116.8 (3) | C14—C13—H13 | 120.3 |
C8'—C4'—C4 | 121.2 (3) | C12—C13—H13 | 120.3 |
C5—C4'—C4 | 121.9 (3) | C15—C16—C17 | 119.3 (4) |
O2—C4—C3 | 124.0 (4) | C15—C16—H16 | 120.3 |
O2—C4—C4' | 121.9 (3) | C17—C16—H16 | 120.3 |
C3—C4—C4' | 114.1 (3) | C6—C5—C4' | 122.3 (4) |
C2—C3—C9 | 117.2 (3) | C6—C5—H5 | 118.8 |
C2—C3—C4 | 119.0 (3) | C4'—C5—H5 | 118.8 |
C9—C3—C4 | 123.8 (3) | C8—C7—C6 | 121.6 (4) |
C5—C6—C7 | 117.9 (4) | C8—C7—H7 | 119.2 |
C5—C6—C18 | 121.2 (4) | C6—C7—H7 | 119.2 |
C7—C6—C18 | 120.9 (4) | C16—C15—C14 | 121.8 (4) |
C17—C12—C13 | 121.0 (4) | C16—C15—Cl1 | 118.6 (4) |
C17—C12—S11 | 119.6 (3) | C14—C15—Cl1 | 119.7 (4) |
C13—C12—S11 | 119.3 (3) | C12—C17—C16 | 119.5 (4) |
C2—O1—C8' | 118.6 (3) | C12—C17—H17 | 120.3 |
C10—C9—C3 | 127.2 (4) | C16—C17—H17 | 120.3 |
C10—C9—H9 | 116.4 | C15—C14—C13 | 119.0 (4) |
C3—C9—H9 | 116.4 | C15—C14—H14 | 120.5 |
O1—C2—C3 | 126.0 (4) | C13—C14—H14 | 120.5 |
O1—C2—H2 | 117.0 | C6—C18—H18A | 109.5 |
C3—C2—H2 | 117.0 | C6—C18—H18B | 109.5 |
C9—C10—S11 | 119.6 (3) | H18A—C18—H18B | 109.5 |
C9—C10—H10 | 120.2 | C6—C18—H18C | 109.5 |
S11—C10—H10 | 120.2 | H18A—C18—H18C | 109.5 |
C4'—C8'—O1 | 121.0 (3) | H18B—C18—H18C | 109.5 |
C8'—C4'—C4—O2 | 179.2 (4) | C4—C4'—C8'—O1 | 0.7 (5) |
C5—C4'—C4—O2 | −0.3 (6) | C5—C4'—C8'—C8 | −0.6 (6) |
C8'—C4'—C4—C3 | −1.3 (5) | C4—C4'—C8'—C8 | 179.8 (4) |
C5—C4'—C4—C3 | 179.2 (3) | C2—O1—C8'—C4' | −1.1 (5) |
O2—C4—C3—C2 | −178.2 (4) | C2—O1—C8'—C8 | 179.7 (3) |
C4'—C4—C3—C2 | 2.3 (5) | C4'—C8'—C8—C7 | 1.9 (6) |
O2—C4—C3—C9 | 2.0 (6) | O1—C8'—C8—C7 | −178.9 (4) |
C4'—C4—C3—C9 | −177.5 (3) | C17—C12—C13—C14 | −1.3 (6) |
O4—S11—C12—C17 | −10.5 (4) | S11—C12—C13—C14 | 177.5 (3) |
O3—S11—C12—C17 | −140.6 (3) | C7—C6—C5—C4' | −0.2 (6) |
C10—S11—C12—C17 | 104.9 (3) | C18—C6—C5—C4' | 178.2 (4) |
O4—S11—C12—C13 | 170.7 (3) | C8'—C4'—C5—C6 | −0.3 (6) |
O3—S11—C12—C13 | 40.6 (4) | C4—C4'—C5—C6 | 179.3 (3) |
C10—S11—C12—C13 | −73.9 (3) | C8'—C8—C7—C6 | −2.3 (7) |
C2—C3—C9—C10 | −165.8 (4) | C5—C6—C7—C8 | 1.5 (6) |
C4—C3—C9—C10 | 14.0 (6) | C18—C6—C7—C8 | −176.8 (5) |
C8'—O1—C2—C3 | 2.4 (6) | C17—C16—C15—C14 | −1.1 (7) |
C9—C3—C2—O1 | 176.7 (4) | C17—C16—C15—Cl1 | 178.8 (3) |
C4—C3—C2—O1 | −3.0 (6) | C13—C12—C17—C16 | 0.7 (6) |
C3—C9—C10—S11 | 177.8 (3) | S11—C12—C17—C16 | −178.1 (3) |
O4—S11—C10—C9 | 12.3 (4) | C15—C16—C17—C12 | 0.5 (6) |
O3—S11—C10—C9 | 143.8 (3) | C16—C15—C14—C13 | 0.4 (7) |
C12—S11—C10—C9 | −101.9 (3) | Cl1—C15—C14—C13 | −179.4 (3) |
C5—C4'—C8'—O1 | −179.7 (3) | C12—C13—C14—C15 | 0.8 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O3i | 0.93 | 2.33 | 3.248 (5) | 167 |
C10—H10···O2ii | 0.93 | 2.52 | 3.344 (5) | 148 |
Symmetry codes: (i) x, −y+1, z−1/2; (ii) −x+2, y, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C18H13ClO4S |
Mr | 360.79 |
Crystal system, space group | Monoclinic, P2/c |
Temperature (K) | 298 |
a, b, c (Å) | 14.383 (3), 9.656 (2), 12.864 (2) |
β (°) | 112.630 (2) |
V (Å3) | 1649.0 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.38 |
Crystal size (mm) | 0.20 × 0.15 × 0.08 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.920, 0.960 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3643, 2774, 2088 |
Rint | 0.081 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.073, 0.245, 1.13 |
No. of reflections | 2774 |
No. of parameters | 219 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.45, −0.63 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), enCIFer (Allen et al., 2004) and PARST (Nardelli, 1995)'.
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O3i | 0.93 | 2.33 | 3.248 (5) | 167 |
C10—H10···O2ii | 0.93 | 2.52 | 3.344 (5) | 148 |
Symmetry codes: (i) x, −y+1, z−1/2; (ii) −x+2, y, −z+3/2. |
Acknowledgements
MK thanks Ed. CEL, New Delhi, for sponsoring a visit to Yangon University, Myanmar
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.
Sulfones are useful building blocks in the preparation and functionalization of a wide variety of products (Alonso et al., 2002). They are similarly to sulfonamides, showing strong in vitro and in vivo antibacterial activity, and for almost 60 years have been used successfully in medicine. Certain sulfones also display anti-bacterial and anti-fungal properties (Raju et al., 1996). The anti-fungal activity of some unsaturated sulfones has been found to be dependent upon the substituents and stereochemical effects (Chen et al., 1996). The title compound has been observed to display anti-fungal activity against curularia luneta and furasium oxysporum (Mukundam, 1990). The determination of the structure of the title compound was undertaken to study the conformation of the molecule and to contribute to the growing structural data becoming available for the characterization of the structure activity relationships.
The molecular structure of the title compound is illustrated in Fig. 1. It is similar to the structures of the related compounds: (E)-6-Chloro-3-[2-(4-chlorophenylsulfonyl)ethenyl]-4-chromanone (I), (E)-6-Bromo-3-[2-(4-bromophenylsulfonyl)ethenyl]-4-chromanone (II), (i>E)-3-[2-(4-Chlorophenylsulfonyl)ethenyl]-6-methoxy-4-chromanone (III) (Raju et al., 1996), 3-[(2-(Phenylsulfonyl)ethenyl]-4H-1-benzopyran-4-one (IV) (Chen et al., 1996) and 3-[2-(4-Chlorophenylsulfonyl)ethenyl]-4H-1-benzopyran-4-one (V) (Krishnaiah et al., 1995). The bond lengths and angles are comparable with those observed for structures (I) - (V), but the dihedral angles are different. This is probably due to crystal packing effects and the presence of C-H···O hydrogen bonds. The bond distances reflect the electron delocalization of the O1—C2═C3—C9═C10 chain.
The mean S═O distance of 1.439 (3) Å is comparable with the reported value of 1.436 (2)Å (Sethu Sankar et al., 2002), and indicates double-bond character of over 60% (Cruickshank, 1961). The C-S distances are slightly different from those in the the related structures (I) - (V). This may reflect the different inductive effects of the chlorophenyl and the benzopyran units. The bond lengths S11-C10 [1.747 (4) Å], and S11-C12 [1.776 (4) Å], are in agreement, within experimental error, to the values found for S-C(aromatic) bonds, i.e. 1.763 (9)Å (Allen et al., 1987).
The chlorophenyl and the benzopyran rings are planar, with maximum deviations of 0.007 (3) and 0.014 (3) Å, respectively, and their mean planes are inclined to one another by 80.7 (1) °. The mean planes of the chlorophenyl group, and the ethane group with its immediate substituents, are oriented at angles of 52.0 (2) and 51.3 (2) °, respectively, with respect to the sulfonyl (O3═S11═O4) plane.
In the crystal structure of the title compound symmetry related molecules are linked via C-H···O interactions (Table 1), forming centrosymmetric dimers (via interaction C10-H10···O3). These in turn are linked via a second interaction (C2-H2···O2) to form a chain like structure (Fig. 2).