organic compounds
2,3-Bis[(4-methylphenyl)sulfanyl]-4H-1-benzothiopyran-4-one 1,1-dioxide forms a framework built from C—H⋯O, C—H⋯π(arene) and π–π interactions
aSchool of Chemistry, University of St Andrews, Fife KY16 9ST, Scotland, bDepartment of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen AB24 3UE, Scotland, and cInstituto de Química, Departamento de Química Inorgânica, Universidade Federal do Rio de Janeiro, 21945-970 Rio de Janeiro, RJ, Brazil
*Correspondence e-mail: cg@st-andrews.ac.uk
Molecules of the title comound, C23H18O3S3, are linked into sheets by a combination of one C—H⋯O hydrogen bond and two C—H⋯π(arene) hydrogen bonds, and these sheets are weakly linked into a three-dimensional structure by means of a single aromatic π–π stacking interaction.
Comment
1,4-Naphthoquinone derivatives have been extensively studied as dyes and pigments (Tilak, 1971). Although 4H-1-benzothiopyran-4-one 1,1-dioxide derivatives have not been so well studied, it is known that their absorption spectra exhibit hypsochromic effects compared with the 1,4-naphthoquinone analogues (Christie et al., 1980; Watanabe et al., 1989, 1990). The crystal structures of two halogenated derivatives have been investigated as part of a study of non-linear optical materials (Watanabe et al., 1989, 1992). Accordingly, we have now investigated the title non-halogenated analogue, (I) (Fig. 1), whose structure exhibits a rich variety of weak direction-specific intermolecular interactions.
The S—C distances in (I) (Table 1) show an unusual pattern. For the sulfone atom S1, formally SVI, the S—C distance involving aryl C atoms is less than those involving alkene C atoms, whereas for the sulfide atoms S2 and S3, formally S−II, the bonds to alkene C atoms are the shorter. Within the heterocyclic ring, there is clear bond fixation with a short C8—C9 bond, while the π-bonding in each of the arene rings is fully delocalized.
The O—S—O bond angle in the sulfone fragment of (I) is significantly larger than the tetrahedral angle, while the opposed C—S—C angle at S1 is correspondingly much smaller than the tetrahedral value. The bond angles at S2 and S3 are typical of those in organosulfides.
For the heterocyclic ring of (I), the ring-puckering parameters (Cremer & Pople, 1975) for the atom sequence S1/C1/C6–C9 are θ = 85.5 (5)° and φ = 18.6 (5)°, indicative of a conformation best described as twist-boat (Evans & Boeyens, 1989). The values of the torsion angles C9—C8—S2—C21 and C8—C9—S3—C31 are indicative of entirely different orientations for the two pendant groups (see also Fig. 1).
The molecules of (I) are linked into a three-dimensional framework by a variety of weak but direction-specific intermolecular forces, and the formation of this framework is readily analysed by means of the approach (Gregson et al., 2000). A single C—H⋯O hydrogen bond (Table 2) links the molecules into chains. These chains are linked into sheets by the combined action of two C—H⋯π(arene) hydrogen bonds and the sheets are linked together by a single aromatic π–π stacking interaction.
Atom C32 in the molecule at (x, y, z) acts as hydrogen-bond donor to sulfone atom O11 in the molecule at (x, − y, z − ), so producing a zigzag C(7) chain (Bernstein et al., 1995) running parallel to the [001] direction and generated by the c-glide plane at y = (Fig. 2). The formation of this chain is modestly reinforced by a short dipolar contact between the negatively charged sulfone atom O11 in the molecule at (x, y, z) and the positively charged carbonyl atom C7 in the molecule at (x, − y, + z). The O11⋯C7iv distance is 2.938 (3) Å and the S1—O11⋯C7iv angle is 138.6 (2)° [symmetry code: (iv) x, − y, + z].
Atoms C5 and C35 in the molecule at (x, y, z) act as hydrogen-bond donors to, respectively, the C31–C36 ring in the molecule at (x − 1, y, z) and the C21–C26 ring in the molecule at (1 + x, y, z). In this manner, a chain of rings is generated by translation along the [100] direction (Fig. 3). The combination of the [100] and [001] chains produces an (010) sheet lying in the domain −0.06 < y < 0.56 and generated by the c-glide plane at y = (Fig. 4). A similar sheet, generated by the c-glide plane at y = and related to the first by inversion, lies in the domain 0.44 < y < 1.06.
Adjacent (010) sheets are weakly linked by a π–π stacking interaction. The C21–C26 rings in the molecules at (x, y, z) and (−x, −y, 2 − z) lie in (010) sheets generated by glide planes at y = and −, respectively. These two rings are parallel, with an of 3.548 (2) Å. The ring-centroid separation is 3.876 (2) Å, corresponding to a centroid offset of 1.561 (2) Å (Fig. 5). Propagation by the of this interaction is sufficient to link all of the (010) sheets into a single framework structure.
Experimental
A sample of compound (I) was prepared following the procedure of Christie et al. (1980). The crystals used in the present were grown by slow evaporation of a solution in ethanol [m.p. 432–434 K; literature m.p. 433–433.5 K (Christie et al., 1980)].
Crystal data
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Data collection
Refinement
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The P21/c was uniquely assigned from the All H atoms were located from difference maps and then treated as riding atoms, with C—H distances of 0.95 (aromatic) or 0.98 Å (methyl), and with Uiso(H) = 1.2Ueq(C) for aromatic H and 1.5Ueq(C) for methyl H atoms.
Data collection: KappaCCD Server Software (Nonius, 1997); cell DENZO–SMN (Otwinowski & Minor, 1997); data reduction: DENZO–SMN; program(s) used to solve structure: OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: OSCAIL and SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 and PRPKAPPA (Ferguson, 1999).
Supporting information
10.1107/S0108270104006286/sk1715sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S0108270104006286/sk1715Isup2.hkl
A sample of compound (I) was prepared following the procedure of Christie et al. (1980). The crystals used in the present
were grown by slow evaporation of a solution in ethanol [m.p. 432–434 K; literature value (Christie et al., 1980) 433–433.5 K].The
P21/c was uniquely assigned from the All H atoms were located from difference maps and then treated as riding atoms, with C—H distances of 0.95 (aromatic) or 0.98 Å (methyl), and with Uiso(H) = 1.2Ueq(C) for aromatic H and 1.5Ueq(C) for methyl H.Data collection: KappaCCD Server Software (Nonius, 1997); cell
DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN; program(s) used to solve structure: OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: OSCAIL and SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 and PRPKAPPA (Ferguson, 1999).Fig. 1. The molecule of (I), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. | |
Fig. 2. Part of the crystal structure of (I), showing formation of a C(7) chain along [001]. For the sake of clarity, H atoms not involved in the motif shown have been omitted. The atoms marked with an asterisk (*) or a hash (#) are at the symmetry positions (x, 1/2 − y, z − 1/2) and (x, y, z − 1), respectively. | |
Fig. 3. Part of the crystal structure of (I), showing formation of a chain of rings along [100]. For the sake of clarity, H atoms not involved in the motif shown have been omitted. The atoms marked with an asterisk (*) or a hash (#) are at the symmetry positions (1 + x, y, z) and (x − 1, y, z), respectively. | |
Fig. 4. A stereoview of part of the crystal structure of (I), showing formation of an (010) sheet by the combination of the [100] and [001] chains. For the sake of clarity, H atoms not involved in the motifs shown have been omitted. | |
Fig. 5. Part of the crystal structure of (I), showing the π–π stacking interaction which links adjacent (010) sheets. For the sake of clarity, H atoms have been omitted. |
C23H18O3S3 | F(000) = 912 |
Mr = 438.58 | Dx = 1.458 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4564 reflections |
a = 9.6349 (3) Å | θ = 3.2–27.5° |
b = 22.5791 (7) Å | µ = 0.39 mm−1 |
c = 9.1895 (4) Å | T = 120 K |
β = 91.253 (2)° | Block, orange |
V = 1998.67 (12) Å3 | 0.30 × 0.20 × 0.10 mm |
Z = 4 |
Nonius KappaCCD area-detector diffractometer | 4564 independent reflections |
Radiation source: rotating anode | 3002 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
ϕ scans, and ω scans with κ offsets | θmax = 27.5°, θmin = 3.2° |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | h = −12→12 |
Tmin = 0.891, Tmax = 0.962 | k = −27→29 |
8989 measured reflections | l = −11→11 |
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0507P)2] where P = (Fo2 + 2Fc2)/3 |
4564 reflections | (Δ/σ)max = 0.001 |
264 parameters | Δρmax = 0.32 e Å−3 |
0 restraints | Δρmin = −0.52 e Å−3 |
C23H18O3S3 | V = 1998.67 (12) Å3 |
Mr = 438.58 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.6349 (3) Å | µ = 0.39 mm−1 |
b = 22.5791 (7) Å | T = 120 K |
c = 9.1895 (4) Å | 0.30 × 0.20 × 0.10 mm |
β = 91.253 (2)° |
Nonius KappaCCD area-detector diffractometer | 4564 independent reflections |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | 3002 reflections with I > 2σ(I) |
Tmin = 0.891, Tmax = 0.962 | Rint = 0.051 |
8989 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.32 e Å−3 |
4564 reflections | Δρmin = −0.52 e Å−3 |
264 parameters |
x | y | z | Uiso*/Ueq | ||
S1 | 0.10208 (6) | 0.27529 (2) | 0.70282 (7) | 0.01843 (16) | |
S2 | 0.13922 (6) | 0.08214 (2) | 0.68332 (7) | 0.02260 (17) | |
S3 | 0.32554 (6) | 0.19732 (3) | 0.79040 (7) | 0.02217 (16) | |
O11 | 0.11720 (15) | 0.30057 (7) | 0.84572 (18) | 0.0233 (4) | |
O12 | 0.17223 (16) | 0.30414 (7) | 0.58686 (19) | 0.0267 (4) | |
O71 | −0.10696 (15) | 0.12330 (6) | 0.51304 (18) | 0.0218 (4) | |
C1 | −0.0756 (2) | 0.27169 (9) | 0.6587 (3) | 0.0171 (5) | |
C2 | −0.1518 (2) | 0.32310 (10) | 0.6758 (3) | 0.0236 (6) | |
C3 | −0.2905 (2) | 0.32394 (10) | 0.6330 (3) | 0.0257 (6) | |
C4 | −0.3504 (2) | 0.27408 (10) | 0.5710 (3) | 0.0281 (6) | |
C5 | −0.2743 (2) | 0.22280 (10) | 0.5535 (3) | 0.0231 (6) | |
C6 | −0.1351 (2) | 0.22067 (10) | 0.5987 (3) | 0.0182 (5) | |
C7 | −0.0597 (2) | 0.16342 (10) | 0.5866 (3) | 0.0183 (5) | |
C8 | 0.0763 (2) | 0.15497 (9) | 0.6694 (3) | 0.0167 (5) | |
C9 | 0.1564 (2) | 0.20056 (10) | 0.7156 (3) | 0.0172 (5) | |
C21 | −0.0051 (2) | 0.04489 (10) | 0.7584 (3) | 0.0198 (5) | |
C22 | −0.0710 (2) | 0.06696 (10) | 0.8804 (3) | 0.0246 (6) | |
C23 | −0.1755 (3) | 0.03432 (10) | 0.9435 (3) | 0.0255 (6) | |
C24 | −0.2159 (2) | −0.02075 (10) | 0.8883 (3) | 0.0219 (5) | |
C25 | −0.1481 (2) | −0.04205 (10) | 0.7681 (3) | 0.0207 (5) | |
C26 | −0.0441 (2) | −0.00996 (9) | 0.7019 (3) | 0.0199 (5) | |
C27 | −0.3309 (2) | −0.05497 (11) | 0.9582 (3) | 0.0283 (6) | |
C31 | 0.4161 (2) | 0.15200 (10) | 0.6649 (3) | 0.0176 (5) | |
C32 | 0.3887 (2) | 0.15339 (10) | 0.5171 (3) | 0.0204 (5) | |
C33 | 0.4637 (2) | 0.11650 (10) | 0.4260 (3) | 0.0205 (5) | |
C34 | 0.5672 (2) | 0.07933 (9) | 0.4805 (3) | 0.0206 (5) | |
C35 | 0.5950 (2) | 0.07985 (10) | 0.6290 (3) | 0.0218 (6) | |
C36 | 0.5194 (2) | 0.11533 (10) | 0.7220 (3) | 0.0206 (5) | |
C37 | 0.6488 (2) | 0.04015 (10) | 0.3807 (3) | 0.0277 (6) | |
H2 | −0.1093 | 0.3575 | 0.7165 | 0.028* | |
H3 | −0.3443 | 0.3587 | 0.6462 | 0.031* | |
H4 | −0.4450 | 0.2751 | 0.5400 | 0.034* | |
H5 | −0.3168 | 0.1889 | 0.5106 | 0.028* | |
H22 | −0.0444 | 0.1042 | 0.9202 | 0.030* | |
H23 | −0.2207 | 0.0498 | 1.0261 | 0.031* | |
H25 | −0.1734 | −0.0797 | 0.7297 | 0.025* | |
H26 | 0.0002 | −0.0253 | 0.6187 | 0.024* | |
H27A | −0.4202 | −0.0432 | 0.9142 | 0.042* | |
H27B | −0.3308 | −0.0465 | 1.0628 | 0.042* | |
H27C | −0.3163 | −0.0975 | 0.9431 | 0.042* | |
H32 | 0.3195 | 0.1792 | 0.4778 | 0.025* | |
H33 | 0.4436 | 0.1168 | 0.3243 | 0.025* | |
H35 | 0.6672 | 0.0555 | 0.6679 | 0.026* | |
H36 | 0.5382 | 0.1145 | 0.8239 | 0.025* | |
H37A | 0.5900 | 0.0286 | 0.2970 | 0.042* | |
H37B | 0.6792 | 0.0046 | 0.4336 | 0.042* | |
H37C | 0.7301 | 0.0618 | 0.3466 | 0.042* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0175 (3) | 0.0173 (3) | 0.0205 (4) | −0.0009 (2) | 0.0010 (2) | −0.0026 (2) |
S2 | 0.0189 (3) | 0.0167 (3) | 0.0323 (4) | 0.0018 (2) | 0.0023 (3) | −0.0008 (3) |
S3 | 0.0159 (3) | 0.0273 (3) | 0.0233 (4) | 0.0013 (2) | −0.0016 (2) | −0.0079 (3) |
O11 | 0.0212 (8) | 0.0240 (9) | 0.0245 (10) | 0.0006 (7) | −0.0043 (7) | −0.0101 (7) |
O12 | 0.0263 (9) | 0.0234 (9) | 0.0308 (11) | −0.0068 (7) | 0.0088 (8) | 0.0022 (8) |
O71 | 0.0213 (8) | 0.0199 (9) | 0.0243 (10) | −0.0032 (7) | −0.0010 (7) | −0.0043 (7) |
C1 | 0.0178 (11) | 0.0189 (12) | 0.0147 (13) | −0.0008 (10) | 0.0006 (10) | 0.0002 (9) |
C2 | 0.0268 (13) | 0.0185 (12) | 0.0256 (15) | 0.0005 (10) | −0.0006 (11) | −0.0004 (11) |
C3 | 0.0231 (13) | 0.0192 (12) | 0.0349 (17) | 0.0058 (10) | −0.0012 (12) | 0.0027 (11) |
C4 | 0.0186 (12) | 0.0264 (13) | 0.0390 (17) | 0.0028 (11) | −0.0049 (11) | 0.0043 (12) |
C5 | 0.0231 (12) | 0.0195 (12) | 0.0267 (15) | −0.0010 (10) | −0.0019 (11) | 0.0024 (10) |
C6 | 0.0180 (11) | 0.0197 (12) | 0.0170 (13) | −0.0023 (9) | 0.0021 (10) | 0.0003 (10) |
C7 | 0.0175 (11) | 0.0207 (12) | 0.0168 (13) | −0.0021 (10) | 0.0007 (10) | −0.0010 (10) |
C8 | 0.0151 (11) | 0.0169 (11) | 0.0183 (13) | 0.0008 (9) | 0.0040 (10) | −0.0006 (10) |
C9 | 0.0148 (11) | 0.0209 (12) | 0.0162 (13) | 0.0015 (10) | 0.0037 (10) | −0.0024 (10) |
C21 | 0.0207 (12) | 0.0185 (12) | 0.0201 (14) | 0.0023 (9) | −0.0020 (10) | 0.0018 (10) |
C22 | 0.0299 (13) | 0.0192 (12) | 0.0247 (15) | 0.0013 (11) | −0.0007 (11) | −0.0030 (11) |
C23 | 0.0284 (13) | 0.0273 (13) | 0.0211 (15) | 0.0050 (11) | 0.0040 (11) | −0.0016 (11) |
C24 | 0.0237 (12) | 0.0221 (12) | 0.0197 (14) | 0.0033 (10) | −0.0016 (11) | 0.0054 (10) |
C25 | 0.0239 (12) | 0.0145 (12) | 0.0236 (15) | 0.0003 (9) | −0.0039 (11) | 0.0009 (10) |
C26 | 0.0221 (12) | 0.0194 (12) | 0.0182 (13) | 0.0051 (10) | −0.0012 (10) | −0.0004 (10) |
C27 | 0.0290 (13) | 0.0284 (14) | 0.0275 (16) | −0.0041 (11) | 0.0035 (12) | 0.0032 (11) |
C31 | 0.0127 (10) | 0.0189 (12) | 0.0213 (14) | 0.0007 (9) | 0.0022 (10) | 0.0001 (10) |
C32 | 0.0131 (11) | 0.0230 (12) | 0.0250 (15) | 0.0002 (10) | −0.0009 (10) | 0.0018 (11) |
C33 | 0.0170 (11) | 0.0257 (12) | 0.0187 (14) | −0.0040 (10) | 0.0006 (10) | −0.0027 (10) |
C34 | 0.0150 (11) | 0.0175 (12) | 0.0293 (16) | −0.0028 (9) | 0.0041 (11) | −0.0032 (10) |
C35 | 0.0148 (11) | 0.0187 (12) | 0.0320 (16) | 0.0028 (10) | 0.0013 (11) | 0.0038 (11) |
C36 | 0.0198 (12) | 0.0241 (13) | 0.0178 (14) | −0.0016 (10) | −0.0009 (10) | 0.0042 (10) |
C37 | 0.0237 (13) | 0.0233 (13) | 0.0364 (17) | −0.0006 (10) | 0.0059 (12) | −0.0095 (12) |
C1—C2 | 1.384 (3) | C22—H22 | 0.95 |
C1—C6 | 1.395 (3) | C23—C24 | 1.395 (3) |
S1—C1 | 1.753 (2) | C23—H23 | 0.95 |
S1—C9 | 1.770 (2) | C24—C25 | 1.382 (3) |
C8—S2 | 1.756 (2) | C24—C27 | 1.506 (3) |
S2—C21 | 1.778 (2) | C25—C26 | 1.388 (3) |
C9—S3 | 1.757 (2) | C25—H25 | 0.95 |
S3—C31 | 1.784 (2) | C26—H26 | 0.95 |
S1—O11 | 1.4363 (17) | C27—H27A | 0.98 |
S1—O12 | 1.4311 (16) | C27—H27B | 0.98 |
C6—C7 | 1.488 (3) | C27—H27C | 0.98 |
C7—C8 | 1.513 (3) | C31—C32 | 1.379 (3) |
C8—C9 | 1.349 (3) | C31—C36 | 1.388 (3) |
C7—O71 | 1.213 (3) | C32—C33 | 1.394 (3) |
C2—C3 | 1.385 (3) | C32—H32 | 0.95 |
C2—H2 | 0.95 | C33—C34 | 1.389 (3) |
C3—C4 | 1.382 (3) | C33—H33 | 0.95 |
C3—H3 | 0.95 | C34—C35 | 1.384 (3) |
C4—C5 | 1.381 (3) | C34—C37 | 1.508 (3) |
C4—H4 | 0.95 | C35—C36 | 1.390 (3) |
C5—C6 | 1.396 (3) | C35—H35 | 0.95 |
C5—H5 | 0.95 | C36—H36 | 0.95 |
C21—C26 | 1.391 (3) | C37—H37A | 0.98 |
C21—C22 | 1.392 (3) | C37—H37B | 0.98 |
C22—C23 | 1.385 (3) | C37—H37C | 0.98 |
C2—C1—C6 | 121.6 (2) | C24—C23—H23 | 119.3 |
C2—C1—S1 | 116.90 (17) | C25—C24—C23 | 117.9 (2) |
C6—C1—S1 | 121.35 (17) | C25—C24—C27 | 121.8 (2) |
C1—C2—C3 | 119.3 (2) | C23—C24—C27 | 120.3 (2) |
C1—C2—H2 | 120.3 | C24—C25—C26 | 121.8 (2) |
C3—C2—H2 | 120.3 | C24—C25—H25 | 119.1 |
C4—C3—C2 | 119.8 (2) | C26—C25—H25 | 119.1 |
C4—C3—H3 | 120.1 | C25—C26—C21 | 119.5 (2) |
C2—C3—H3 | 120.1 | C25—C26—H26 | 120.2 |
C5—C4—C3 | 120.9 (2) | C21—C26—H26 | 120.2 |
C5—C4—H4 | 119.6 | C24—C27—H27A | 109.5 |
C3—C4—H4 | 119.6 | C24—C27—H27B | 109.5 |
C4—C5—C6 | 120.2 (2) | H27A—C27—H27B | 109.5 |
C4—C5—H5 | 119.9 | C24—C27—H27C | 109.5 |
C6—C5—H5 | 119.9 | H27A—C27—H27C | 109.5 |
C1—C6—C5 | 118.2 (2) | H27B—C27—H27C | 109.5 |
C1—C6—C7 | 123.4 (2) | C9—S3—C31 | 103.53 (11) |
C5—C6—C7 | 118.3 (2) | C32—C31—C36 | 120.4 (2) |
O71—C7—C6 | 120.8 (2) | C32—C31—S3 | 122.52 (17) |
O71—C7—C8 | 119.8 (2) | C36—C31—S3 | 117.03 (18) |
C6—C7—C8 | 119.37 (19) | C31—C32—C33 | 119.1 (2) |
C9—C8—C7 | 123.0 (2) | C31—C32—H32 | 120.4 |
C9—C8—S2 | 119.85 (18) | C33—C32—H32 | 120.4 |
C7—C8—S2 | 116.63 (16) | C34—C33—C32 | 121.5 (2) |
C8—C9—S3 | 127.61 (18) | C34—C33—H33 | 119.3 |
C8—C9—S1 | 122.73 (18) | C32—C33—H33 | 119.3 |
S3—C9—S1 | 109.64 (12) | C35—C34—C33 | 118.2 (2) |
O11—S1—O12 | 117.38 (10) | C35—C34—C37 | 120.8 (2) |
O12—S1—C1 | 108.89 (11) | C33—C34—C37 | 121.0 (2) |
O11—S1—C1 | 108.00 (10) | C34—C35—C36 | 121.2 (2) |
O12—S1—C9 | 109.85 (10) | C34—C35—H35 | 119.4 |
O11—S1—C9 | 107.11 (11) | C36—C35—H35 | 119.4 |
C1—S1—C9 | 104.88 (10) | C31—C36—C35 | 119.5 (2) |
C8—S2—C21 | 101.52 (10) | C31—C36—H36 | 120.3 |
C26—C21—C22 | 119.7 (2) | C35—C36—H36 | 120.3 |
C26—C21—S2 | 118.90 (17) | C34—C37—H37A | 109.5 |
C22—C21—S2 | 121.16 (18) | C34—C37—H37B | 109.5 |
C23—C22—C21 | 119.6 (2) | H37A—C37—H37B | 109.5 |
C23—C22—H22 | 120.2 | C34—C37—H37C | 109.5 |
C21—C22—H22 | 120.2 | H37A—C37—H37C | 109.5 |
C22—C23—C24 | 121.4 (2) | H37B—C37—H37C | 109.5 |
C22—C23—H23 | 119.3 | ||
C6—C1—C2—C3 | 0.3 (3) | C6—C1—S1—O11 | −133.73 (19) |
S1—C1—C2—C3 | 175.50 (19) | C2—C1—S1—C9 | 165.02 (18) |
C1—C2—C3—C4 | −1.4 (4) | C8—C9—S1—O12 | −105.1 (2) |
C2—C3—C4—C5 | 1.2 (4) | S3—C9—S1—O12 | 73.40 (14) |
C3—C4—C5—C6 | 0.1 (4) | C8—C9—S1—O11 | 126.4 (2) |
C2—C1—C6—C5 | 1.0 (3) | S3—C9—S1—O11 | −55.11 (13) |
S1—C1—C6—C5 | −174.01 (17) | S3—C9—S1—C1 | −169.72 (11) |
C2—C1—C6—C7 | −176.1 (2) | C7—C8—S2—C21 | −54.35 (18) |
S1—C1—C6—C7 | 8.8 (3) | C8—S2—C21—C26 | 136.3 (2) |
C1—C6—C7—C8 | 13.2 (3) | C26—C21—C22—C23 | −0.6 (4) |
C6—C7—C8—C9 | −22.1 (3) | S2—C21—C22—C23 | −174.58 (19) |
C7—C8—C9—S1 | 7.4 (3) | C21—C22—C23—C24 | 0.6 (4) |
C8—C9—S1—C1 | 11.8 (2) | C22—C23—C24—C25 | 0.0 (4) |
C9—S1—C1—C6 | −19.7 (2) | C22—C23—C24—C27 | −179.4 (2) |
O71—C7—C8—C9 | 159.0 (2) | C23—C24—C25—C26 | −0.7 (4) |
O71—C7—C6—C1 | −167.9 (2) | C27—C24—C25—C26 | 178.7 (2) |
C9—C8—S2—C21 | 133.62 (19) | C24—C25—C26—C21 | 0.8 (4) |
C8—S2—C21—C22 | −49.7 (2) | C22—C21—C26—C25 | −0.1 (4) |
C8—C9—S3—C31 | 49.6 (2) | S2—C21—C26—C25 | 174.04 (18) |
C9—S3—C31—C32 | 35.3 (2) | S1—C9—S3—C31 | −128.77 (12) |
C4—C5—C6—C1 | −1.2 (3) | C9—S3—C31—C36 | −145.94 (17) |
C4—C5—C6—C7 | 176.1 (2) | C36—C31—C32—C33 | 1.5 (3) |
C5—C6—C7—O71 | 15.0 (3) | S3—C31—C32—C33 | −179.84 (15) |
C5—C6—C7—C8 | −163.9 (2) | C31—C32—C33—C34 | −1.3 (3) |
O71—C7—C8—S2 | −12.7 (3) | C32—C33—C34—C35 | −0.3 (3) |
C6—C7—C8—S2 | 166.13 (16) | C32—C33—C34—C37 | −179.28 (19) |
C7—C8—C9—S3 | −170.73 (16) | C33—C34—C35—C36 | 1.7 (3) |
S2—C8—C9—S3 | 0.8 (3) | C37—C34—C35—C36 | −179.29 (19) |
S2—C8—C9—S1 | 178.94 (12) | C32—C31—C36—C35 | −0.1 (3) |
C2—C1—S1—O12 | −77.4 (2) | S3—C31—C36—C35 | −178.85 (16) |
C6—C1—S1—O12 | 97.8 (2) | C34—C35—C36—C31 | −1.5 (3) |
C2—C1—S1—O11 | 51.0 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C32—H32···O11i | 0.95 | 2.32 | 3.197 (3) | 154 |
C5—H5···Cg1ii | 0.95 | 2.55 | 3.308 (2) | 137 |
C35—H35···Cg2iii | 0.95 | 2.73 | 3.658 (2) | 164 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x−1, y, z; (iii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C23H18O3S3 |
Mr | 438.58 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 120 |
a, b, c (Å) | 9.6349 (3), 22.5791 (7), 9.1895 (4) |
β (°) | 91.253 (2) |
V (Å3) | 1998.67 (12) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.39 |
Crystal size (mm) | 0.30 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Nonius KappaCCD area-detector diffractometer |
Absorption correction | Multi-scan (SORTAV; Blessing, 1995, 1997) |
Tmin, Tmax | 0.891, 0.962 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8989, 4564, 3002 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.107, 1.00 |
No. of reflections | 4564 |
No. of parameters | 264 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.32, −0.52 |
Computer programs: KappaCCD Server Software (Nonius, 1997), DENZO-SMN (Otwinowski & Minor, 1997), DENZO-SMN, OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997), OSCAIL and SHELXL97 (Sheldrick, 1997), PLATON (Spek, 2003), SHELXL97 and PRPKAPPA (Ferguson, 1999).
S1—C1 | 1.753 (2) | S1—O11 | 1.4363 (17) |
S1—C9 | 1.770 (2) | S1—O12 | 1.4311 (16) |
C8—S2 | 1.756 (2) | C6—C7 | 1.488 (3) |
S2—C21 | 1.778 (2) | C7—C8 | 1.513 (3) |
C9—S3 | 1.757 (2) | C8—C9 | 1.349 (3) |
S3—C31 | 1.784 (2) | C7—O71 | 1.213 (3) |
O11—S1—O12 | 117.38 (10) | C8—S2—C21 | 101.52 (10) |
C1—S1—C9 | 104.88 (10) | C9—S3—C31 | 103.53 (11) |
S1—C1—C6—C7 | 8.8 (3) | O71—C7—C8—C9 | 159.0 (2) |
C1—C6—C7—C8 | 13.2 (3) | O71—C7—C6—C1 | −167.9 (2) |
C6—C7—C8—C9 | −22.1 (3) | C9—C8—S2—C21 | 133.62 (19) |
C7—C8—C9—S1 | 7.4 (3) | C8—S2—C21—C22 | −49.7 (2) |
C8—C9—S1—C1 | 11.8 (2) | C8—C9—S3—C31 | 49.6 (2) |
C9—S1—C1—C6 | −19.7 (2) | C9—S3—C31—C32 | 35.3 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C32—H32···O11i | 0.95 | 2.32 | 3.197 (3) | 154 |
C5—H5···Cg1ii | 0.95 | 2.55 | 3.308 (2) | 137 |
C35—H35···Cg2iii | 0.95 | 2.73 | 3.658 (2) | 164 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x−1, y, z; (iii) x+1, y, z. |
Acknowledgements
The X-ray data were collected at the EPSRC X-ray Crystallographic Service, University of Southampton, England; the authors thank the staff for all their help and advice. JNL thanks NCR Self-Service, Dundee, for grants which have provided computing facilities for this work. JLW thanks CNPq and FAPERJ for financial support.
References
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1,4-Naphthoquinone derivatives have been extensively studied as dyes and pigments (Tilak, 1971). Although 4H-1-benzothiopyran-4-one 1,1-dioxide derivatives have not been so well studied, it is known that their absorption spectra exhibit hypsochromic effects compared with the 1,4-naphthoquinone analogues (Christie et al., 1980; Watanabe et al., 1989, 1990). The crystal structures of two halogenated derivatives have been investigated as part of a study of non-linear optical materials (Watanabe et al., 1989, 1992). Accordingly, we have now investigated the title non-halogenated analogue, (I) (Fig. 1), whose structure exhibits a rich variety of weak direction-specific intermolecular interactions. \sch
The S—C distances in (I) (Table 1) show an unusual pattern. For the sulfone atom S1, formally SVI, the S—C distance involving aryl C atoms is less than those involving alkene C atoms, whereas for the two sulfide atoms S2 and S3, formally S—II, the bonds to alkene C atoms are the shorter. Within the heterocyclic ring, there is clear bond fixation, with a short C8—C9 bond, while the π-bonding in each of the arene rings is fully delocalized.
The O—S—O bond angle in the sulfone fragment of (I) is significantly larger than the tetrahedral angle, while the opposed C—S—C angle at S1 is correspondingly much smaller than the tetrahedral value. The bond angles at S2 and S3 are typical of those in organosulfides.
For the heterocyclic ring of (I), the ring-puckering parameters (Cremer & Pople, 1975) for the atom sequence S1/C1/C6—C9 are θ = 85.5 (5)° and ϕ = 18.6 (5)°, indicative of a conformation best described as twist-boat (Evans & Boeyens, 1989). The values of the two torsion angles C9—C8—S2—C21 and C8—C9—S3—C31 are indicative of entirely different orientations for the two pendant groups (see also Fig. 1).
The molecules of (I) are linked into a three-dimensional framework by a variety of weak but direction-specific intermolecular forces, and the formation of this framework is readily analysed by means of the sub-structure approach (Gregson et al., 2000). A single C—H···O hydrogen bond (Table 2) links the molecules into chains, these chains are linked into sheets by the combined action of two C—H···π(arene) hydrogen bonds, and the sheets into linked together by a single aromatic π–π stacking interaction.
Atom C32 in the molecule at (x, y, z) acts as hydrogen-bond donor to sulfone atom O11 in the molecule at (x, 1/2 − y, z − 1/2), so producing a zigzag C(7) chain (Bernstein et al., 1995) running parallel to the [001] direction and generated by the c-glide plane at y = 1/4 (Fig. 2). The formation of this chain is modestly reinforced by a short dipolar contact between the negatively charged sulfone atom O11 in the molecule at (x, y, z) and the positively charged carbonyl atom C7 in the molecule at (x, 1/2 − y, 1/2 + z). The O11···C7iv distance is 2.938 (3) Å and the S1—O11···C7iv angle is 138.6 (2)° [symmetry code: (iv) x, 1/2 − y, 1/2 + z].
Atoms C5 and C35 in the molecule at (x, y, z) act as hydrogen-bond donors to, respectively, the C31—C36 ring in the molecule at (x − 1, y, z) and the C21—C26 ring in the molecule at (1 + x, y, z). In this manner, a chain of rings is generated by translation along the [100] direction (Fig. 3). The combination of the [100] and [001] chains produces an (010) sheet lying in the domain −0.06 < y < 0.56 and generated by the c-glide plane at y = 1/4 (Fig. 4). A similar sheet, generated by the c-glide plane at y = 3/4 and related to the first by inversion, lies in the domain 0.44 < y < 1.06.
Adjacent (010) sheets are weakly linked by a π–π stacking interaction. The C21—C26 rings in the molecules at (x, y, z) and (-x, −y, 2 − z) lie in (010) sheets generated by glide planes at y = 1/4 and y = −1/4, respectively. These two rings are parallel, with an interplanar spacing of 3.548 (2) Å. The ring-centroid separation is 3.876 (2) Å, corresponding to a centroid offset of 1.561 (2) Å (Fig. 5). Propagation by the space group of this interaction is sufficient to link all of the (010) sheets into a single framework structure.
Table 2. Hydrogen bond parameters (Å, °) for compound (I). Cg1 is the centroid of the C31—C36 ring and Cg2 is the centroid of the C21—C26 ring.