organic compounds
1-{4-Chloro-2-[2-(2-fluorophenyl)-1,3-dithiolan-2-yl]phenyl}-2-methyl-1H-imidazole-5-carbaldehyde
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, bCrystal Materials Research Unit, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand, and cDepartment of Chemistry, Mangalore University, Mangalagangotri 574 199, Karnatak State, India
*Correspondence e-mail: hkfun@usm.my
There are two molecules in the 20H16ClFN2OS2. In one molecule, the dithiolane ring is disordered over two positions in a 0.849 (9):0.151 (10) ratio. The imidazole ring makes dihedral angles of 79.56 (9) and 18.45 (9)° with the 4-chlorophenyl and 2-fluorophenyl rings, respectively, in one molecule; in the other molecule, the corresponding angles are 82.72 (9) and 17.39 (10)°. In the crystal, molecules are linked by weak C—H⋯O interactions and these linked molecules are stacked along the b axis by π–π interactions with a centroid–centroid distance of 3.4922 (11) Å. In addition, π–π interactions between the imidazole and 2-fluorophenyl rings are also observed, with centroid–centroid distances of 3.4867 (11) and 3.4326 (10) Å. The crystal is further consolidated by weak C—H⋯π interactions. Cl⋯S [3.5185 (8) Å], C⋯O [3.192 (3) Å] and C⋯C [3.326 (2)–3.393 (3) Å] short contacts are also observed.
of the title imidazole derivative, CRelated literature
For reference bond-length data, see: Allen et al. (1987). For details of ring conformations, see: Cremer & Pople (1975). For background to and applications of imidazole derivatives, see: Dutta et al. (2009); Hori et al. (2000); Khabnadideh et al. (2003); Mamolo et al. (2004); Quattara et al. (1987); Sengupta & Bhattacharya (1983); Ucucu et al. (2001); Yesilada et al. (2004).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811002595/wn2418sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811002595/wn2418Isup2.hkl
To a 500 ml three-necked flask containing isopropyl alcohol (123 ml), 4-chloro-2[2-(2-fluorophenyl)-1,3-dithiolan-2-yl]-N-(1-aminoethylidene) benzenamine (20 g, 0.054 mole) was added, then followed by acetic acid and triethylamine (1.1 molar equivalent of each). A solution of bromomalonaldehyde (8.65 g, 0.055 mole) in 100 ml of isopropyl alcohol was added and refluxed for 6 hrs. The mixture was concentrated under vacuum at 308–313 K and the residue was treated with water (200 ml), followed by extraction with dichloromethane (100 ml). The organic layer was concentrated and the product isolated. Yellow block-shaped single crystals of the title compound suitable for X-ray
were recrystallized from ethanol by the slow evaporation of the solvent at room temperature over a period of several days, Mp. 431–433 K.H atoms were positioned geometrically and allowed to ride on their parent atoms, with d(C—H) = 0.93 Å for Csp2, 0.97 Å for methylene C and 0.96 Å for methyl C atoms. Uiso(H) = xUeq(C), where x = 1.5 for methyl H and 1.2 for all other H atoms. A rotating group model was used for the methyl groups.
Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The structure of the aymmetric unit of the title compound, showing 40% probability displacement ellipsoids and the atom-numbering scheme. Open bonds indicate the minor disorder component. Hydrogen atoms are shown as spheres of arbitrary radius. | |
Fig. 2. The crystal packing of the major disorder component of the title compound, viewed down the c axis. Weak C—H···O interactions are shown as dashed lines. |
C20H16ClFN2OS2 | F(000) = 1728 |
Mr = 418.92 | Dx = 1.465 Mg m−3 |
Monoclinic, P21/c | Melting point = 431–433 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 18.5654 (3) Å | Cell parameters from 11058 reflections |
b = 9.2730 (1) Å | θ = 2.3–30.0° |
c = 24.7174 (4) Å | µ = 0.44 mm−1 |
β = 116.807 (1)° | T = 297 K |
V = 3797.96 (10) Å3 | Block, yellow |
Z = 8 | 0.57 × 0.52 × 0.43 mm |
Bruker SMART APEXII CCD area-detector diffractometer | 11058 independent reflections |
Radiation source: sealed tube | 8238 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
ϕ and ω scans | θmax = 30.0°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −25→26 |
Tmin = 0.787, Tmax = 0.833 | k = −11→13 |
42050 measured reflections | l = −34→34 |
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)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.110 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0494P)2 + 1.2334P] where P = (Fo2 + 2Fc2)/3 |
11058 reflections | (Δ/σ)max = 0.001 |
498 parameters | Δρmax = 0.47 e Å−3 |
0 restraints | Δρmin = −0.29 e Å−3 |
C20H16ClFN2OS2 | V = 3797.96 (10) Å3 |
Mr = 418.92 | Z = 8 |
Monoclinic, P21/c | Mo Kα radiation |
a = 18.5654 (3) Å | µ = 0.44 mm−1 |
b = 9.2730 (1) Å | T = 297 K |
c = 24.7174 (4) Å | 0.57 × 0.52 × 0.43 mm |
β = 116.807 (1)° |
Bruker SMART APEXII CCD area-detector diffractometer | 11058 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 8238 reflections with I > 2σ(I) |
Tmin = 0.787, Tmax = 0.833 | Rint = 0.025 |
42050 measured reflections |
R[F2 > 2σ(F2)] = 0.040 | 0 restraints |
wR(F2) = 0.110 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.47 e Å−3 |
11058 reflections | Δρmin = −0.29 e Å−3 |
498 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 | Occ. (<1) | |
Cl1A | 0.25942 (3) | 0.62718 (5) | 0.73463 (3) | 0.06226 (14) | |
S1A | 0.30891 (3) | 0.06420 (5) | 0.76209 (2) | 0.04776 (11) | |
S2A | 0.35008 (3) | 0.12181 (5) | 0.89061 (2) | 0.04827 (11) | |
F1A | 0.45561 (7) | 0.10894 (12) | 0.75343 (5) | 0.0543 (3) | |
O1A | 0.45746 (10) | 0.3552 (2) | 0.97799 (8) | 0.0808 (5) | |
N1A | 0.54863 (7) | 0.30739 (13) | 0.90641 (6) | 0.0333 (3) | |
N2A | 0.67475 (8) | 0.22391 (16) | 0.94763 (7) | 0.0462 (3) | |
C1A | 0.49232 (10) | 0.03084 (17) | 0.80578 (8) | 0.0411 (3) | |
C2A | 0.55553 (11) | −0.0572 (2) | 0.81286 (10) | 0.0536 (5) | |
H2AA | 0.5715 | −0.0656 | 0.7823 | 0.064* | |
C3A | 0.59483 (12) | −0.1329 (2) | 0.86655 (11) | 0.0603 (5) | |
H3AA | 0.6381 | −0.1927 | 0.8727 | 0.072* | |
C4A | 0.56967 (12) | −0.1193 (2) | 0.91058 (10) | 0.0562 (5) | |
H4AA | 0.5967 | −0.1692 | 0.9469 | 0.067* | |
C5A | 0.50453 (10) | −0.03238 (17) | 0.90177 (8) | 0.0439 (4) | |
H5AA | 0.4878 | −0.0263 | 0.9319 | 0.053* | |
C6A | 0.46387 (9) | 0.04589 (15) | 0.84846 (7) | 0.0352 (3) | |
C7A | 0.38948 (9) | 0.13927 (16) | 0.83468 (7) | 0.0342 (3) | |
C8A | 0.23702 (12) | 0.0129 (3) | 0.78845 (10) | 0.0632 (5) | |
H8AA | 0.2005 | 0.0923 | 0.7835 | 0.076* | |
H8AB | 0.2055 | −0.0688 | 0.7654 | 0.076* | |
C9A | 0.28267 (13) | −0.0262 (2) | 0.85399 (11) | 0.0617 (5) | |
H9AA | 0.3130 | −0.1145 | 0.8587 | 0.074* | |
H9AB | 0.2459 | −0.0405 | 0.8716 | 0.074* | |
C10A | 0.40297 (9) | 0.30204 (16) | 0.82977 (7) | 0.0328 (3) | |
C11A | 0.33688 (9) | 0.38578 (18) | 0.79124 (8) | 0.0391 (3) | |
H11A | 0.2872 | 0.3414 | 0.7689 | 0.047* | |
C12A | 0.34365 (9) | 0.53227 (18) | 0.78570 (8) | 0.0403 (3) | |
C13A | 0.41532 (10) | 0.60404 (18) | 0.81777 (8) | 0.0449 (4) | |
H13A | 0.4193 | 0.7029 | 0.8135 | 0.054* | |
C14A | 0.48118 (10) | 0.52407 (17) | 0.85662 (8) | 0.0418 (4) | |
H14A | 0.5303 | 0.5702 | 0.8788 | 0.050* | |
C15A | 0.47569 (9) | 0.37588 (16) | 0.86333 (7) | 0.0330 (3) | |
C16A | 0.61461 (9) | 0.27685 (17) | 0.89769 (7) | 0.0368 (3) | |
C17A | 0.64670 (11) | 0.22370 (19) | 0.98946 (8) | 0.0463 (4) | |
H17A | 0.6764 | 0.1917 | 1.0291 | 0.056* | |
C18A | 0.56970 (10) | 0.27589 (17) | 0.96678 (7) | 0.0392 (3) | |
C19A | 0.52354 (13) | 0.3053 (2) | 0.99857 (9) | 0.0527 (4) | |
H19A | 0.5476 | 0.2831 | 1.0397 | 0.063* | |
C20A | 0.61982 (11) | 0.3074 (2) | 0.84079 (8) | 0.0501 (4) | |
H20A | 0.6601 | 0.2465 | 0.8384 | 0.075* | |
H20B | 0.6342 | 0.4066 | 0.8403 | 0.075* | |
H20C | 0.5685 | 0.2887 | 0.8068 | 0.075* | |
Cl1B | −0.11743 (3) | 0.82366 (6) | 0.82366 (2) | 0.06218 (14) | |
S1B | −0.06051 (3) | 0.25797 (5) | 0.84138 (2) | 0.04791 (11) | |
S2B | 0.07738 (3) | 0.33592 (5) | 0.81837 (2) | 0.04785 (11) | |
F1B | 0.00272 (8) | 0.29431 (15) | 0.97221 (5) | 0.0681 (3) | |
O1B | 0.20278 (10) | 0.6108 (2) | 0.86047 (7) | 0.0772 (5) | |
N1B | 0.18622 (7) | 0.50963 (14) | 0.96952 (6) | 0.0348 (3) | |
N2B | 0.28898 (9) | 0.41459 (16) | 1.04951 (7) | 0.0475 (3) | |
C1B | 0.06791 (12) | 0.2203 (2) | 0.97587 (8) | 0.0479 (4) | |
C2B | 0.10655 (16) | 0.1275 (2) | 1.02414 (9) | 0.0659 (6) | |
H2BA | 0.0872 | 0.1141 | 1.0525 | 0.079* | |
C3B | 0.17401 (15) | 0.0555 (2) | 1.02951 (10) | 0.0688 (6) | |
H3BA | 0.2010 | −0.0071 | 1.0618 | 0.083* | |
C4B | 0.20137 (12) | 0.0759 (2) | 0.98734 (10) | 0.0593 (5) | |
H4BA | 0.2476 | 0.0281 | 0.9913 | 0.071* | |
C5B | 0.16075 (10) | 0.16754 (18) | 0.93844 (8) | 0.0448 (4) | |
H5BA | 0.1797 | 0.1786 | 0.9097 | 0.054* | |
C6B | 0.09254 (9) | 0.24306 (16) | 0.93159 (7) | 0.0357 (3) | |
C7B | 0.04282 (9) | 0.33975 (17) | 0.87717 (7) | 0.0336 (3) | |
C10B | 0.04177 (9) | 0.50073 (16) | 0.89252 (6) | 0.0321 (3) | |
C11B | −0.02824 (9) | 0.58123 (18) | 0.86003 (7) | 0.0374 (3) | |
H11B | −0.0750 | 0.5347 | 0.8329 | 0.045* | |
C12B | −0.02917 (10) | 0.72888 (18) | 0.86748 (7) | 0.0401 (3) | |
C13B | 0.03757 (11) | 0.80291 (19) | 0.90805 (8) | 0.0464 (4) | |
H13B | 0.0361 | 0.9022 | 0.9128 | 0.056* | |
C14B | 0.10674 (10) | 0.72464 (18) | 0.94136 (8) | 0.0445 (4) | |
H14B | 0.1525 | 0.7718 | 0.9696 | 0.053* | |
C15B | 0.10945 (9) | 0.57683 (17) | 0.93361 (7) | 0.0342 (3) | |
C16B | 0.21586 (10) | 0.47013 (18) | 1.02890 (7) | 0.0399 (3) | |
C17B | 0.30732 (10) | 0.42030 (19) | 1.00227 (9) | 0.0468 (4) | |
H17B | 0.3557 | 0.3880 | 1.0039 | 0.056* | |
C18B | 0.24570 (9) | 0.47949 (17) | 0.95176 (8) | 0.0396 (3) | |
C19B | 0.24897 (12) | 0.5274 (2) | 0.89772 (9) | 0.0532 (4) | |
H19B | 0.2906 | 0.4909 | 0.8906 | 0.064* | |
C20B | 0.17221 (12) | 0.4943 (3) | 1.06578 (9) | 0.0579 (5) | |
H20D | 0.1919 | 0.4284 | 1.0993 | 0.087* | |
H20E | 0.1155 | 0.4786 | 1.0411 | 0.087* | |
H20F | 0.1809 | 0.5915 | 1.0807 | 0.087* | |
C8BA | −0.0620 (2) | 0.1950 (5) | 0.77250 (17) | 0.0664 (10) | 0.849 (10) |
H8BA | −0.0914 | 0.1048 | 0.7604 | 0.080* | 0.849 (10) |
H8BB | −0.0889 | 0.2650 | 0.7404 | 0.080* | 0.849 (10) |
C9BA | 0.0235 (2) | 0.1734 (4) | 0.78267 (16) | 0.0593 (9) | 0.849 (10) |
H9BA | 0.0250 | 0.1576 | 0.7444 | 0.071* | 0.849 (10) |
H9BB | 0.0474 | 0.0907 | 0.8086 | 0.071* | 0.849 (10) |
C8BB | −0.0388 (12) | 0.1405 (19) | 0.7960 (9) | 0.053 (4)* | 0.151 (10) |
H8BC | −0.0007 | 0.0679 | 0.8208 | 0.064* | 0.151 (10) |
H8BD | −0.0877 | 0.0923 | 0.7676 | 0.064* | 0.151 (10) |
C9BB | −0.0027 (15) | 0.228 (3) | 0.7614 (11) | 0.075 (6)* | 0.151 (10) |
H9BC | −0.0434 | 0.2900 | 0.7314 | 0.090* | 0.151 (10) |
H9BD | 0.0188 | 0.1649 | 0.7410 | 0.090* | 0.151 (10) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1A | 0.0383 (2) | 0.0507 (3) | 0.0845 (4) | 0.0141 (2) | 0.0160 (2) | 0.0254 (2) |
S1A | 0.0388 (2) | 0.0450 (2) | 0.0457 (2) | −0.00736 (18) | 0.00682 (18) | −0.00719 (18) |
S2A | 0.0500 (3) | 0.0469 (2) | 0.0538 (3) | −0.0069 (2) | 0.0286 (2) | −0.0025 (2) |
F1A | 0.0612 (7) | 0.0563 (6) | 0.0475 (6) | 0.0087 (5) | 0.0264 (5) | 0.0081 (5) |
O1A | 0.0655 (10) | 0.1031 (14) | 0.0858 (12) | −0.0056 (10) | 0.0447 (9) | −0.0174 (10) |
N1A | 0.0274 (6) | 0.0310 (6) | 0.0355 (6) | −0.0008 (5) | 0.0090 (5) | −0.0007 (5) |
N2A | 0.0352 (7) | 0.0425 (8) | 0.0498 (8) | 0.0069 (6) | 0.0093 (6) | 0.0016 (6) |
C1A | 0.0399 (8) | 0.0325 (8) | 0.0464 (9) | −0.0002 (7) | 0.0155 (7) | −0.0011 (7) |
C2A | 0.0495 (10) | 0.0407 (10) | 0.0730 (13) | 0.0015 (8) | 0.0299 (10) | −0.0093 (9) |
C3A | 0.0413 (10) | 0.0355 (9) | 0.0924 (16) | 0.0082 (8) | 0.0199 (10) | −0.0023 (10) |
C4A | 0.0462 (10) | 0.0342 (9) | 0.0649 (12) | 0.0039 (8) | 0.0046 (9) | 0.0097 (8) |
C5A | 0.0442 (9) | 0.0304 (8) | 0.0469 (9) | −0.0026 (7) | 0.0116 (8) | 0.0054 (7) |
C6A | 0.0329 (7) | 0.0236 (7) | 0.0421 (8) | −0.0023 (6) | 0.0107 (6) | −0.0008 (6) |
C7A | 0.0303 (7) | 0.0304 (7) | 0.0369 (7) | −0.0023 (6) | 0.0106 (6) | 0.0005 (6) |
C8A | 0.0393 (10) | 0.0584 (12) | 0.0797 (15) | −0.0132 (9) | 0.0161 (10) | −0.0025 (11) |
C9A | 0.0541 (12) | 0.0507 (11) | 0.0834 (15) | −0.0127 (9) | 0.0336 (11) | 0.0067 (10) |
C10A | 0.0286 (7) | 0.0283 (7) | 0.0390 (7) | 0.0003 (6) | 0.0132 (6) | 0.0005 (6) |
C11A | 0.0260 (7) | 0.0371 (8) | 0.0484 (9) | 0.0002 (6) | 0.0116 (7) | 0.0037 (7) |
C12A | 0.0310 (8) | 0.0368 (8) | 0.0495 (9) | 0.0078 (6) | 0.0148 (7) | 0.0082 (7) |
C13A | 0.0444 (9) | 0.0281 (8) | 0.0575 (10) | 0.0018 (7) | 0.0190 (8) | 0.0032 (7) |
C14A | 0.0332 (8) | 0.0323 (8) | 0.0506 (9) | −0.0043 (6) | 0.0106 (7) | −0.0018 (7) |
C15A | 0.0272 (7) | 0.0301 (7) | 0.0374 (7) | 0.0024 (6) | 0.0107 (6) | −0.0002 (6) |
C16A | 0.0307 (7) | 0.0320 (7) | 0.0420 (8) | 0.0007 (6) | 0.0112 (6) | −0.0025 (6) |
C17A | 0.0457 (9) | 0.0394 (9) | 0.0389 (8) | 0.0040 (7) | 0.0060 (7) | 0.0040 (7) |
C18A | 0.0420 (9) | 0.0329 (8) | 0.0373 (8) | −0.0035 (7) | 0.0132 (7) | −0.0004 (6) |
C19A | 0.0556 (12) | 0.0522 (11) | 0.0548 (11) | −0.0113 (9) | 0.0287 (10) | −0.0083 (9) |
C20A | 0.0441 (10) | 0.0569 (11) | 0.0514 (10) | −0.0008 (8) | 0.0234 (8) | −0.0001 (8) |
Cl1B | 0.0466 (3) | 0.0566 (3) | 0.0570 (3) | 0.0220 (2) | 0.0001 (2) | 0.0008 (2) |
S1B | 0.0339 (2) | 0.0497 (3) | 0.0522 (2) | −0.00964 (18) | 0.01240 (19) | −0.0126 (2) |
S2B | 0.0566 (3) | 0.0502 (3) | 0.0435 (2) | −0.0079 (2) | 0.0286 (2) | −0.00982 (19) |
F1B | 0.0733 (8) | 0.0838 (9) | 0.0640 (7) | 0.0218 (7) | 0.0458 (7) | 0.0078 (6) |
O1B | 0.0712 (10) | 0.0979 (13) | 0.0585 (9) | 0.0014 (9) | 0.0257 (8) | 0.0205 (9) |
N1B | 0.0249 (6) | 0.0350 (7) | 0.0365 (6) | 0.0012 (5) | 0.0069 (5) | −0.0032 (5) |
N2B | 0.0362 (7) | 0.0430 (8) | 0.0487 (8) | 0.0058 (6) | 0.0064 (6) | 0.0042 (6) |
C1B | 0.0539 (11) | 0.0463 (10) | 0.0429 (9) | 0.0055 (8) | 0.0213 (8) | 0.0000 (8) |
C2B | 0.0898 (17) | 0.0588 (13) | 0.0454 (10) | 0.0042 (12) | 0.0271 (11) | 0.0068 (9) |
C3B | 0.0797 (15) | 0.0440 (11) | 0.0531 (12) | 0.0071 (11) | 0.0038 (11) | 0.0071 (9) |
C4B | 0.0476 (11) | 0.0357 (9) | 0.0721 (13) | 0.0082 (8) | 0.0072 (10) | −0.0021 (9) |
C5B | 0.0380 (8) | 0.0334 (8) | 0.0568 (10) | 0.0018 (7) | 0.0160 (8) | −0.0068 (7) |
C6B | 0.0359 (8) | 0.0299 (7) | 0.0364 (7) | 0.0001 (6) | 0.0119 (6) | −0.0053 (6) |
C7B | 0.0295 (7) | 0.0355 (8) | 0.0321 (7) | −0.0017 (6) | 0.0106 (6) | −0.0063 (6) |
C10B | 0.0295 (7) | 0.0340 (8) | 0.0296 (7) | 0.0009 (6) | 0.0107 (6) | −0.0023 (6) |
C11B | 0.0293 (7) | 0.0421 (8) | 0.0316 (7) | 0.0022 (6) | 0.0055 (6) | −0.0038 (6) |
C12B | 0.0332 (8) | 0.0421 (9) | 0.0358 (8) | 0.0102 (7) | 0.0075 (6) | 0.0016 (7) |
C13B | 0.0429 (9) | 0.0335 (8) | 0.0520 (10) | 0.0047 (7) | 0.0120 (8) | −0.0036 (7) |
C14B | 0.0343 (8) | 0.0374 (8) | 0.0490 (9) | −0.0004 (7) | 0.0074 (7) | −0.0078 (7) |
C15B | 0.0262 (7) | 0.0358 (8) | 0.0340 (7) | 0.0023 (6) | 0.0077 (6) | −0.0023 (6) |
C16B | 0.0342 (8) | 0.0367 (8) | 0.0378 (8) | −0.0001 (6) | 0.0065 (7) | −0.0031 (6) |
C17B | 0.0311 (8) | 0.0385 (9) | 0.0629 (11) | 0.0052 (7) | 0.0142 (8) | 0.0012 (8) |
C18B | 0.0309 (7) | 0.0342 (8) | 0.0508 (9) | −0.0008 (6) | 0.0159 (7) | −0.0034 (7) |
C19B | 0.0470 (10) | 0.0601 (12) | 0.0551 (11) | −0.0074 (9) | 0.0253 (9) | −0.0050 (9) |
C20B | 0.0550 (11) | 0.0702 (13) | 0.0440 (10) | 0.0043 (10) | 0.0184 (9) | −0.0057 (9) |
C8BA | 0.0594 (17) | 0.074 (2) | 0.0480 (16) | −0.0147 (15) | 0.0090 (14) | −0.0239 (16) |
C9BA | 0.0722 (19) | 0.0551 (17) | 0.0508 (16) | −0.0098 (14) | 0.0279 (15) | −0.0260 (13) |
Cl1A—C12A | 1.7415 (16) | S2B—C9BA | 1.804 (3) |
S1A—C8A | 1.794 (2) | S2B—C9BB | 1.82 (2) |
S1A—C7A | 1.8764 (16) | S2B—C7B | 1.8349 (15) |
S2A—C9A | 1.802 (2) | F1B—C1B | 1.358 (2) |
S2A—C7A | 1.8396 (16) | O1B—C19B | 1.212 (3) |
F1A—C1A | 1.367 (2) | N1B—C16B | 1.365 (2) |
O1A—C19A | 1.190 (2) | N1B—C18B | 1.388 (2) |
N1A—C16A | 1.3659 (19) | N1B—C15B | 1.4375 (19) |
N1A—C18A | 1.392 (2) | N2B—C16B | 1.321 (2) |
N1A—C15A | 1.4389 (19) | N2B—C17B | 1.357 (2) |
N2A—C16A | 1.330 (2) | C1B—C6B | 1.379 (2) |
N2A—C17A | 1.351 (2) | C1B—C2B | 1.381 (3) |
C1A—C2A | 1.374 (2) | C2B—C3B | 1.372 (3) |
C1A—C6A | 1.383 (2) | C2B—H2BA | 0.9300 |
C2A—C3A | 1.383 (3) | C3B—C4B | 1.363 (3) |
C2A—H2AA | 0.9300 | C3B—H3BA | 0.9300 |
C3A—C4A | 1.370 (3) | C4B—C5B | 1.389 (3) |
C3A—H3AA | 0.9300 | C4B—H4BA | 0.9300 |
C4A—C5A | 1.387 (3) | C5B—C6B | 1.389 (2) |
C4A—H4AA | 0.9300 | C5B—H5BA | 0.9300 |
C5A—C6A | 1.391 (2) | C6B—C7B | 1.531 (2) |
C5A—H5AA | 0.9300 | C7B—C10B | 1.542 (2) |
C6A—C7A | 1.533 (2) | C10B—C11B | 1.397 (2) |
C7A—C10A | 1.544 (2) | C10B—C15B | 1.399 (2) |
C8A—C9A | 1.495 (3) | C11B—C12B | 1.383 (2) |
C8A—H8AA | 0.9700 | C11B—H11B | 0.9300 |
C8A—H8AB | 0.9700 | C12B—C13B | 1.375 (2) |
C9A—H9AA | 0.9700 | C13B—C14B | 1.378 (2) |
C9A—H9AB | 0.9700 | C13B—H13B | 0.9300 |
C10A—C11A | 1.400 (2) | C14B—C15B | 1.388 (2) |
C10A—C15A | 1.403 (2) | C14B—H14B | 0.9300 |
C11A—C12A | 1.377 (2) | C16B—C20B | 1.485 (2) |
C11A—H11A | 0.9300 | C17B—C18B | 1.371 (2) |
C12A—C13A | 1.375 (2) | C17B—H17B | 0.9300 |
C13A—C14A | 1.381 (2) | C18B—C19B | 1.435 (3) |
C13A—H13A | 0.9300 | C19B—H19B | 0.9300 |
C14A—C15A | 1.393 (2) | C20B—H20D | 0.9600 |
C14A—H14A | 0.9300 | C20B—H20E | 0.9600 |
C16A—C20A | 1.480 (2) | C20B—H20F | 0.9600 |
C17A—C18A | 1.367 (2) | C8BA—C9BA | 1.504 (5) |
C17A—H17A | 0.9300 | C8BA—H8BA | 0.9700 |
C18A—C19A | 1.426 (2) | C8BA—H8BB | 0.9700 |
C19A—H19A | 0.9300 | C9BA—H9BA | 0.9700 |
C20A—H20A | 0.9600 | C9BA—H9BB | 0.9700 |
C20A—H20B | 0.9600 | C8BB—C9BB | 1.54 (3) |
C20A—H20C | 0.9600 | C8BB—H8BC | 0.9700 |
Cl1B—C12B | 1.7407 (16) | C8BB—H8BD | 0.9700 |
S1B—C8BB | 1.737 (15) | C9BB—H9BC | 0.9700 |
S1B—C8BA | 1.788 (3) | C9BB—H9BD | 0.9700 |
S1B—C7B | 1.8728 (15) | ||
C8A—S1A—C7A | 98.85 (9) | C16B—N2B—C17B | 105.43 (14) |
C9A—S2A—C7A | 96.37 (9) | F1B—C1B—C6B | 118.32 (15) |
C16A—N1A—C18A | 106.68 (13) | F1B—C1B—C2B | 118.18 (18) |
C16A—N1A—C15A | 125.89 (13) | C6B—C1B—C2B | 123.49 (18) |
C18A—N1A—C15A | 126.99 (13) | C3B—C2B—C1B | 118.9 (2) |
C16A—N2A—C17A | 105.00 (14) | C3B—C2B—H2BA | 120.6 |
F1A—C1A—C2A | 117.88 (16) | C1B—C2B—H2BA | 120.6 |
F1A—C1A—C6A | 118.02 (14) | C4B—C3B—C2B | 119.8 (2) |
C2A—C1A—C6A | 124.10 (17) | C4B—C3B—H3BA | 120.1 |
C1A—C2A—C3A | 118.32 (19) | C2B—C3B—H3BA | 120.1 |
C1A—C2A—H2AA | 120.8 | C3B—C4B—C5B | 120.48 (19) |
C3A—C2A—H2AA | 120.8 | C3B—C4B—H4BA | 119.8 |
C4A—C3A—C2A | 119.60 (17) | C5B—C4B—H4BA | 119.8 |
C4A—C3A—H3AA | 120.2 | C6B—C5B—C4B | 121.45 (19) |
C2A—C3A—H3AA | 120.2 | C6B—C5B—H5BA | 119.3 |
C3A—C4A—C5A | 120.96 (18) | C4B—C5B—H5BA | 119.3 |
C3A—C4A—H4AA | 119.5 | C1B—C6B—C5B | 115.88 (16) |
C5A—C4A—H4AA | 119.5 | C1B—C6B—C7B | 120.13 (14) |
C4A—C5A—C6A | 120.95 (18) | C5B—C6B—C7B | 123.89 (15) |
C4A—C5A—H5AA | 119.5 | C6B—C7B—C10B | 114.84 (12) |
C6A—C5A—H5AA | 119.5 | C6B—C7B—S2B | 113.37 (10) |
C1A—C6A—C5A | 116.03 (15) | C10B—C7B—S2B | 105.14 (10) |
C1A—C6A—C7A | 120.22 (14) | C6B—C7B—S1B | 105.13 (10) |
C5A—C6A—C7A | 123.69 (15) | C10B—C7B—S1B | 112.60 (10) |
C6A—C7A—C10A | 114.07 (12) | S2B—C7B—S1B | 105.52 (7) |
C6A—C7A—S2A | 114.03 (11) | C11B—C10B—C15B | 116.49 (14) |
C10A—C7A—S2A | 106.19 (10) | C11B—C10B—C7B | 119.18 (13) |
C6A—C7A—S1A | 104.64 (10) | C15B—C10B—C7B | 124.05 (13) |
C10A—C7A—S1A | 112.03 (10) | C12B—C11B—C10B | 121.13 (15) |
S2A—C7A—S1A | 105.68 (7) | C12B—C11B—H11B | 119.4 |
C9A—C8A—S1A | 107.87 (13) | C10B—C11B—H11B | 119.4 |
C9A—C8A—H8AA | 110.1 | C13B—C12B—C11B | 122.02 (15) |
S1A—C8A—H8AA | 110.1 | C13B—C12B—Cl1B | 119.17 (13) |
C9A—C8A—H8AB | 110.1 | C11B—C12B—Cl1B | 118.81 (13) |
S1A—C8A—H8AB | 110.1 | C12B—C13B—C14B | 117.58 (16) |
H8AA—C8A—H8AB | 108.4 | C12B—C13B—H13B | 121.2 |
C8A—C9A—S2A | 106.58 (14) | C14B—C13B—H13B | 121.2 |
C8A—C9A—H9AA | 110.4 | C13B—C14B—C15B | 121.29 (15) |
S2A—C9A—H9AA | 110.4 | C13B—C14B—H14B | 119.4 |
C8A—C9A—H9AB | 110.4 | C15B—C14B—H14B | 119.4 |
S2A—C9A—H9AB | 110.4 | C14B—C15B—C10B | 121.45 (14) |
H9AA—C9A—H9AB | 108.6 | C14B—C15B—N1B | 115.49 (14) |
C11A—C10A—C15A | 116.47 (14) | C10B—C15B—N1B | 123.05 (14) |
C11A—C10A—C7A | 118.17 (13) | N2B—C16B—N1B | 111.43 (15) |
C15A—C10A—C7A | 125.28 (13) | N2B—C16B—C20B | 124.95 (16) |
C12A—C11A—C10A | 121.56 (15) | N1B—C16B—C20B | 123.55 (15) |
C12A—C11A—H11A | 119.2 | N2B—C17B—C18B | 111.66 (15) |
C10A—C11A—H11A | 119.2 | N2B—C17B—H17B | 124.2 |
C13A—C12A—C11A | 121.89 (15) | C18B—C17B—H17B | 124.2 |
C13A—C12A—Cl1A | 119.50 (13) | C17B—C18B—N1B | 104.40 (15) |
C11A—C12A—Cl1A | 118.58 (13) | C17B—C18B—C19B | 127.11 (16) |
C12A—C13A—C14A | 117.65 (15) | N1B—C18B—C19B | 127.28 (16) |
C12A—C13A—H13A | 121.2 | O1B—C19B—C18B | 126.31 (19) |
C14A—C13A—H13A | 121.2 | O1B—C19B—H19B | 116.8 |
C13A—C14A—C15A | 121.52 (15) | C18B—C19B—H19B | 116.8 |
C13A—C14A—H14A | 119.2 | C16B—C20B—H20D | 109.5 |
C15A—C14A—H14A | 119.2 | C16B—C20B—H20E | 109.5 |
C14A—C15A—C10A | 120.89 (14) | H20D—C20B—H20E | 109.5 |
C14A—C15A—N1A | 115.37 (13) | C16B—C20B—H20F | 109.5 |
C10A—C15A—N1A | 123.74 (13) | H20D—C20B—H20F | 109.5 |
N2A—C16A—N1A | 111.56 (14) | H20E—C20B—H20F | 109.5 |
N2A—C16A—C20A | 124.43 (15) | C9BA—C8BA—S1B | 108.8 (2) |
N1A—C16A—C20A | 123.92 (14) | C9BA—C8BA—H8BA | 109.9 |
N2A—C17A—C18A | 112.22 (15) | S1B—C8BA—H8BA | 109.9 |
N2A—C17A—H17A | 123.9 | C9BA—C8BA—H8BB | 109.9 |
C18A—C17A—H17A | 123.9 | S1B—C8BA—H8BB | 109.9 |
C17A—C18A—N1A | 104.49 (14) | H8BA—C8BA—H8BB | 108.3 |
C17A—C18A—C19A | 128.22 (17) | C8BA—C9BA—S2B | 106.3 (2) |
N1A—C18A—C19A | 127.03 (16) | C8BA—C9BA—H9BA | 110.5 |
O1A—C19A—C18A | 126.8 (2) | S2B—C9BA—H9BA | 110.5 |
O1A—C19A—H19A | 116.6 | C8BA—C9BA—H9BB | 110.5 |
C18A—C19A—H19A | 116.6 | S2B—C9BA—H9BB | 110.5 |
C16A—C20A—H20A | 109.5 | H9BA—C9BA—H9BB | 108.7 |
C16A—C20A—H20B | 109.5 | C9BB—C8BB—S1B | 108.3 (14) |
H20A—C20A—H20B | 109.5 | C9BB—C8BB—H8BC | 110.0 |
C16A—C20A—H20C | 109.5 | S1B—C8BB—H8BC | 110.0 |
H20A—C20A—H20C | 109.5 | C9BB—C8BB—H8BD | 110.0 |
H20B—C20A—H20C | 109.5 | S1B—C8BB—H8BD | 110.0 |
C8BB—S1B—C7B | 94.2 (6) | H8BC—C8BB—H8BD | 108.4 |
C8BA—S1B—C7B | 98.91 (10) | C8BB—C9BB—S2B | 105.7 (16) |
C9BA—S2B—C7B | 95.08 (10) | C8BB—C9BB—H9BC | 110.6 |
C9BB—S2B—C7B | 99.7 (6) | S2B—C9BB—H9BC | 110.6 |
C16B—N1B—C18B | 107.07 (13) | C8BB—C9BB—H9BD | 110.6 |
C16B—N1B—C15B | 125.95 (13) | S2B—C9BB—H9BD | 110.6 |
C18B—N1B—C15B | 126.91 (13) | H9BC—C9BB—H9BD | 108.7 |
F1A—C1A—C2A—C3A | 177.86 (16) | F1B—C1B—C6B—C7B | −5.0 (2) |
C6A—C1A—C2A—C3A | −1.8 (3) | C2B—C1B—C6B—C7B | 175.70 (18) |
C1A—C2A—C3A—C4A | 0.5 (3) | C4B—C5B—C6B—C1B | −0.4 (2) |
C2A—C3A—C4A—C5A | 1.0 (3) | C4B—C5B—C6B—C7B | −176.88 (16) |
C3A—C4A—C5A—C6A | −1.3 (3) | C1B—C6B—C7B—C10B | 67.24 (19) |
F1A—C1A—C6A—C5A | −178.19 (14) | C5B—C6B—C7B—C10B | −116.45 (16) |
C2A—C1A—C6A—C5A | 1.4 (2) | C1B—C6B—C7B—S2B | −171.85 (13) |
F1A—C1A—C6A—C7A | 4.3 (2) | C5B—C6B—C7B—S2B | 4.5 (2) |
C2A—C1A—C6A—C7A | −176.03 (16) | C1B—C6B—C7B—S1B | −57.09 (17) |
C4A—C5A—C6A—C1A | 0.1 (2) | C5B—C6B—C7B—S1B | 119.22 (15) |
C4A—C5A—C6A—C7A | 177.49 (15) | C9BA—S2B—C7B—C6B | 82.91 (18) |
C1A—C6A—C7A—C10A | −67.81 (18) | C9BB—S2B—C7B—C6B | 106.1 (10) |
C5A—C6A—C7A—C10A | 114.93 (16) | C9BA—S2B—C7B—C10B | −150.86 (17) |
C1A—C6A—C7A—S2A | 169.95 (12) | C9BB—S2B—C7B—C10B | −127.7 (10) |
C5A—C6A—C7A—S2A | −7.31 (19) | C9BA—S2B—C7B—S1B | −31.63 (16) |
C1A—C6A—C7A—S1A | 54.97 (16) | C9BB—S2B—C7B—S1B | −8.4 (10) |
C5A—C6A—C7A—S1A | −122.29 (14) | C8BB—S1B—C7B—C6B | −87.5 (7) |
C9A—S2A—C7A—C6A | −89.25 (13) | C8BA—S1B—C7B—C6B | −111.47 (19) |
C9A—S2A—C7A—C10A | 144.28 (12) | C8BB—S1B—C7B—C10B | 146.8 (7) |
C9A—S2A—C7A—S1A | 25.12 (10) | C8BA—S1B—C7B—C10B | 122.8 (2) |
C8A—S1A—C7A—C6A | 119.73 (12) | C8BB—S1B—C7B—S2B | 32.6 (7) |
C8A—S1A—C7A—C10A | −116.18 (12) | C8BA—S1B—C7B—S2B | 8.64 (19) |
C8A—S1A—C7A—S2A | −0.96 (11) | C6B—C7B—C10B—C11B | −145.03 (14) |
C7A—S1A—C8A—C9A | −30.39 (17) | S2B—C7B—C10B—C11B | 89.65 (14) |
S1A—C8A—C9A—S2A | 51.40 (18) | S1B—C7B—C10B—C11B | −24.74 (17) |
C7A—S2A—C9A—C8A | −47.47 (16) | C6B—C7B—C10B—C15B | 41.2 (2) |
C6A—C7A—C10A—C11A | 150.01 (14) | S2B—C7B—C10B—C15B | −84.13 (15) |
S2A—C7A—C10A—C11A | −83.54 (15) | S1B—C7B—C10B—C15B | 161.48 (12) |
S1A—C7A—C10A—C11A | 31.36 (17) | C15B—C10B—C11B—C12B | 1.5 (2) |
C6A—C7A—C10A—C15A | −33.5 (2) | C7B—C10B—C11B—C12B | −172.71 (14) |
S2A—C7A—C10A—C15A | 92.96 (15) | C10B—C11B—C12B—C13B | −1.7 (3) |
S1A—C7A—C10A—C15A | −152.14 (13) | C10B—C11B—C12B—Cl1B | 177.78 (12) |
C15A—C10A—C11A—C12A | 1.4 (2) | C11B—C12B—C13B—C14B | 0.4 (3) |
C7A—C10A—C11A—C12A | 178.23 (15) | Cl1B—C12B—C13B—C14B | −179.10 (14) |
C10A—C11A—C12A—C13A | −0.3 (3) | C12B—C13B—C14B—C15B | 1.0 (3) |
C10A—C11A—C12A—Cl1A | 177.61 (13) | C13B—C14B—C15B—C10B | −1.2 (3) |
C11A—C12A—C13A—C14A | −0.5 (3) | C13B—C14B—C15B—N1B | 177.64 (16) |
Cl1A—C12A—C13A—C14A | −178.33 (14) | C11B—C10B—C15B—C14B | −0.1 (2) |
C12A—C13A—C14A—C15A | 0.0 (3) | C7B—C10B—C15B—C14B | 173.82 (15) |
C13A—C14A—C15A—C10A | 1.2 (3) | C11B—C10B—C15B—N1B | −178.85 (13) |
C13A—C14A—C15A—N1A | −178.58 (15) | C7B—C10B—C15B—N1B | −4.9 (2) |
C11A—C10A—C15A—C14A | −1.9 (2) | C16B—N1B—C15B—C14B | 81.0 (2) |
C7A—C10A—C15A—C14A | −178.42 (15) | C18B—N1B—C15B—C14B | −95.36 (19) |
C11A—C10A—C15A—N1A | 177.91 (14) | C16B—N1B—C15B—C10B | −100.17 (19) |
C7A—C10A—C15A—N1A | 1.4 (2) | C18B—N1B—C15B—C10B | 83.4 (2) |
C16A—N1A—C15A—C14A | −75.4 (2) | C17B—N2B—C16B—N1B | 0.81 (19) |
C18A—N1A—C15A—C14A | 96.07 (19) | C17B—N2B—C16B—C20B | −176.26 (18) |
C16A—N1A—C15A—C10A | 104.81 (18) | C18B—N1B—C16B—N2B | −1.30 (19) |
C18A—N1A—C15A—C10A | −83.7 (2) | C15B—N1B—C16B—N2B | −178.28 (14) |
C17A—N2A—C16A—N1A | −1.26 (19) | C18B—N1B—C16B—C20B | 175.82 (17) |
C17A—N2A—C16A—C20A | 175.30 (17) | C15B—N1B—C16B—C20B | −1.2 (3) |
C18A—N1A—C16A—N2A | 2.08 (18) | C16B—N2B—C17B—C18B | 0.0 (2) |
C15A—N1A—C16A—N2A | 174.99 (14) | N2B—C17B—C18B—N1B | −0.8 (2) |
C18A—N1A—C16A—C20A | −174.49 (16) | N2B—C17B—C18B—C19B | 167.32 (17) |
C15A—N1A—C16A—C20A | −1.6 (2) | C16B—N1B—C18B—C17B | 1.20 (17) |
C16A—N2A—C17A—C18A | −0.1 (2) | C15B—N1B—C18B—C17B | 178.14 (15) |
N2A—C17A—C18A—N1A | 1.30 (19) | C16B—N1B—C18B—C19B | −166.85 (17) |
N2A—C17A—C18A—C19A | −173.19 (17) | C15B—N1B—C18B—C19B | 10.1 (3) |
C16A—N1A—C18A—C17A | −1.97 (17) | C17B—C18B—C19B—O1B | −159.9 (2) |
C15A—N1A—C18A—C17A | −174.77 (14) | N1B—C18B—C19B—O1B | 5.5 (3) |
C16A—N1A—C18A—C19A | 172.60 (17) | C8BB—S1B—C8BA—C9BA | −56.2 (13) |
C15A—N1A—C18A—C19A | −0.2 (3) | C7B—S1B—C8BA—C9BA | 24.1 (4) |
C17A—C18A—C19A—O1A | 177.3 (2) | S1B—C8BA—C9BA—S2B | −49.0 (4) |
N1A—C18A—C19A—O1A | 4.0 (3) | C9BB—S2B—C9BA—C8BA | −52.7 (17) |
F1B—C1B—C2B—C3B | −177.98 (19) | C7B—S2B—C9BA—C8BA | 50.0 (3) |
C6B—C1B—C2B—C3B | 1.3 (3) | C8BA—S1B—C8BB—C9BB | 50.7 (17) |
C1B—C2B—C3B—C4B | −0.3 (3) | C7B—S1B—C8BB—C9BB | −51.8 (19) |
C2B—C3B—C4B—C5B | −1.0 (3) | S1B—C8BB—C9BB—S2B | 50 (2) |
C3B—C4B—C5B—C6B | 1.4 (3) | C9BA—S2B—C9BB—C8BB | 57.1 (19) |
F1B—C1B—C6B—C5B | 178.35 (16) | C7B—S2B—C9BB—C8BB | −23.2 (19) |
C2B—C1B—C6B—C5B | −0.9 (3) |
Cg1, Cg2, Cg3, Cg4 and Cg5 are the centroids of the C16B–C18B/N1B/N2B, C1B–C6B, C16A–C18A/N1A/N2A, C1A–C6A and C10A–C15A rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C17B—H17B···O1A | 0.93 | 2.27 | 3.163 (3) | 160 |
C20A—H20C···F1A | 0.96 | 2.53 | 3.377 (2) | 147 |
C2A—H2AA···Cg5i | 0.93 | 2.81 | 3.727 (2) | 167 |
C13A—H13A···Cg4ii | 0.93 | 2.98 | 3.7764 (19) | 144 |
C13B—H13B···Cg2ii | 0.93 | 2.93 | 3.716 (2) | 143 |
Symmetry codes: (i) −x+1, y−1/2, −z+3/2; (ii) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C20H16ClFN2OS2 |
Mr | 418.92 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 297 |
a, b, c (Å) | 18.5654 (3), 9.2730 (1), 24.7174 (4) |
β (°) | 116.807 (1) |
V (Å3) | 3797.96 (10) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.44 |
Crystal size (mm) | 0.57 × 0.52 × 0.43 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.787, 0.833 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 42050, 11058, 8238 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.110, 1.01 |
No. of reflections | 11058 |
No. of parameters | 498 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.47, −0.29 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Cg1, Cg2, Cg3, Cg4 and Cg5 are the centroids of the C16B–C18B/N1B/N2B, C1B–C6B, C16A–C18A/N1A/N2A, C1A–C6A and C10A–C15A rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C17B—H17B···O1A | 0.93 | 2.27 | 3.163 (3) | 160 |
C20A—H20C···F1A | 0.96 | 2.53 | 3.377 (2) | 147 |
C2A—H2AA···Cg5i | 0.93 | 2.81 | 3.727 (2) | 167 |
C13A—H13A···Cg4ii | 0.93 | 2.98 | 3.7764 (19) | 144 |
C13B—H13B···Cg2ii | 0.93 | 2.93 | 3.716 (2) | 143 |
Symmetry codes: (i) −x+1, y−1/2, −z+3/2; (ii) x, y+1, z. |
Acknowledgements
VS, GKN and BP thank Mangalore University for a research grant. SC thanks the Prince of Songkla University for generous support. The authors thank Universiti Sains Malaysia for the Research University Grant No. 1001/PFIZIK/811160.
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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.
Imidazole is a constituent part of some very important compounds, such as purine, adenine, xanthine, guanine and co-enzyme A, and many drugs contain the imidazole ring. Imidazole derivatives have occupied a unique place in the field of medicinal chemistry. They have a wide range of biological properties, such as antifungal (Hori et al., 2000; Mamolo et al., 2004) and antibacterial (Khabnadideh et al., 2003) activities. They are well known analgesic (Ucucu et al., 2001), anti-inflammatory (Yesilada et al., 2004), anthelmintic (Dutta et al., 2009), antiparasitic (Quattara et al., 1987), as well as antimicrobial (Sengupta & Bhattacharya, 1983) agents. In view of its interesting biological and pharmacological activities, the title compound was synthesized to evaluate its biological activities; its crystal structure is reported here.
Fig. 1 shows the asymmetric unit, which consists of two molecules A and B of C20H16ClFN2OS2. In molecule B, the dithiolan ring is disordered over two sites, the major component BA and the minor component BB (Fig. 1 ), having a refined site-occupancy ratio of 0.849 (9)/0.151 (10). In molecule A, the imidazole ring makes dihedral angles of 79.56 (9) and 18.45 (9)° with the 4-chlorophenyl and 2-fluorophenyl rings, respectively, whereas the corresponding angles in molecule B are 82.72 (9) and 17.39 (10)°. The bond lengths are in normal ranges (Allen et al., 1987).
The conformations of the dithiolan ring (C7–C9/S1–S2) in molecules A and B are different. In molecule A, the dithiolan ring is in an envelope conformation with the flap atom, C9A, 0.327 (2) Å out-of-plane, and puckering parameters Q = 0.517 (2) Å and ϕ = 106.7 (2)° (Cremer & Pople, 1975). In molecule B, the dithiolan rings of both major and minor disorder components are in half-chair conformations, with puckering parameters Q = 0.536 (3) Å and ϕ = 263.5 (3)° for the major component and Q = 0.544 (15) Å and ϕ = 155 (2)° for the minor component .
In the crystal packing (Fig. 2), the two molecules of the asymmetric unit are linked by a weak C—H···O interaction (Table 1) involving the imidazole and aldehyde groups (C17B—H17B···O1A), and these linked molecules are stacked along the b axis by π–π interactions with a Cg1···Cg3iii distance of 3.4922 (11) Å (symmetry code; 1-x, 1-y, 2-z). In addition, π–π interactions between the imidazole and 2-fluorophenyl rings are also observed, with distances of Cg1···Cg2 = 3.4867 (11) Å and Cg3···Cg4 = 3.4326 (10) Å. The crystal structure is consolidated and stabilized by weak C—H···π interactions (Table 1). Cl···S [3.5185 (8) Å], C···O [3.192 (3) Å] and C···C [3.326 (2)–3.393 (3) Å] short contacts are also observed.