organic compounds
{2-[(1,3-Benzothiazol-2-yl)methoxy]-5-fluorophenyl}(4-chlorophenyl)methanone
aSchool of Pharmacy and Pharmacology, University of KwaZulu-Natal, Durban 4000, South Africa, bEquipe Chimie du Solide et Matériaux, UMR 6226 Institut des Sciences, Université de Rennes 1, Campus de Beaulieu, Avenue du Général Leclerc, 35042 Rennes Cedex, France, and cSchool of Chemistry and Physics, University of KwaZulu-Natal, Durban 4000, South Africa
*Correspondence e-mail: venugopala@ukzn.ac.za, nksusa@gmail.com
The 21H13ClFNO2S, contains two independent molecules with similar conformations. In the molecules, the thiazole ring is essentially planar [maximum atomic deviations = 0.014 (4) and 0.023 (5) Å] and is oriented with respect to the fluorophenyl ring and chlorophenyl rings at 9.96 (18) and 70.39 (18)° in one molecule and at 7.50 (18) and 68.43 (18)° in the other; the dihedral angles between the fluorophenyl and chlorophenyl rings are 64.9 (2) and 64.6 (2)°, respectively. Intermolecular C—H⋯O and C—H⋯F hydrogen bonds stabilize the three-dimensional supramolecular architecture. Weak C—H⋯π and π–π interactions [centroid–centroid distance = 3.877 (3) Å] lead to a criss-cross molecular packing along the c axis.
of the title compound, CRelated literature
For background to the applications of benzothiazole derivatives, see: Rana et al. (2007); Saeed et al. (2010); Telvekar et al. (2012); Kelarev et al. (2003). For crystal structures of related benzothiazoles, see: Nayak et al. (2013); Venugopala et al. (2012).
Experimental
Crystal data
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Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell CrysAlis PRO; data reduction: CrysAlis PRO; 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 Mercury (Macrae et al., 2008); software used to prepare material for publication: PLATON (Spek, 2009) and PARST (Nardelli, 1995).
Supporting information
https://doi.org/10.1107/S1600536813014621/xu5707sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813014621/xu5707Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813014621/xu5707Isup3.cml
To a solution of (2-chloromethyl)benzo[d]thiazole (1 mmol) and (4-chlorophenyl)(5-fluoro-2-hydroxyphenyl)methanone (1 mmol) in dry THF, dry potassium carbonate (1 mmol) was added and stirred at room temperature. The reaction mixture was added and the reaction mixture was stirred at room temperature for 14 h. The reaction mixture was concentrated to remove the solvent, diluted with ethyl acetate, washed with water, brine solution and dried over anhydrous sodium sulfate. The organic layer was concentrated to yield a residue which was purified by
using ethyl acetate and n-hexane as (7:3, Rf = 0.70) to afford the product in 78% as a white solid (m. p. 419 (2) K). Suitable crystals for single-crystal X-ray study were obtained from acetone solvent using slow evaporation technique at room temperature.All H atoms were positioned geometrically and refined using a riding model with Uiso(H)= 1.2 Ueq(C).
Substituted benzothiazole derivatives exhibit various pharmacological properties such as analgesic, antimicrobial, antidepressant, antitumor, antihypertensive, anthelmintic, and herbicidal activity (Kelarev et al., 2003). Thus the biological features of new benzothiazole derivatives is of great scientific interest (Telvekar et al., 2012; Saeed et al., 2010; Rana et al., 2007). Several crystal structures of the benzothiazoles have been reported (Nayak et al., 2013; Venugopala et al., 2012). Here, we report the single-crystal structure of the title compound.
The title compound, C21H13ClFNO2S, prefers two symmetry independent molecules in the π [2.83 Å, Cg1 = Centroid of five membered ring S1/C1/C6/N1/C7; 2.82 Å, Cg2 = Centroid of five membered ring S2/C22/C27/N2/C28] and π···π [Cg3···Cg4 = 3.877 (3) Å, Cg3 = Centroid of six membered ring C16—C21 and Cg4 = Centroid of six membered ring C30—C35] interactions lead to criss-cross molecular packing along the c axis.
(Fig. 1). The conformation of the individual molecules adopt the dihedral angles of 64.8 (2)° and 66.6 (2)° between the planes of their respective benzothiazole and chlorophenylmethanone groups. Intermolecular C—H···O and C—H···F hydrogen bond chains stabilize the three dimension molecular assembly. Further, the C—H···For background to the applications of benzothiazole derivatives, see: Rana et al. (2007); Saeed et al. (2010); Telvekar et al. (2012); Kelarev et al. (2003). For crystal structures of related benzothiazoles, see: Nayak et al. (2013); Venugopala et al. (2012).
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell
CrysAlis PRO (Oxford Diffraction, 2009); data reduction: CrysAlis PRO (Oxford Diffraction, 2009); 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 Mercury (Macrae et al., 2008); software used to prepare material for publication: PLATON (Spek, 2009) and PARST (Nardelli, 1995).Fig. 1. Molecular structure shows the atom labelling scheme with displacement ellipsoids for non-H atoms at 30% probability level, hydrogen atoms are arbitrary circle. | |
Fig. 2. (a)The C—H···O and C—H···F hydrogen bond chains. (b) additional C—H···π and π···π interactions lead to criss-cross molecular assembly along c axis. |
C21H13ClFNO2S | Dx = 1.464 Mg m−3 |
Mr = 397.84 | Melting point: 419(2) K |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.7107 Å |
Hall symbol: P 2c -2n | Cell parameters from 340 reflections |
a = 19.7280 (6) Å | θ = 2.7–27.0° |
b = 7.4755 (3) Å | µ = 0.35 mm−1 |
c = 24.4847 (7) Å | T = 292 K |
V = 3611.0 (2) Å3 | Block, colorless |
Z = 8 | 0.18 × 0.12 × 0.08 mm |
F(000) = 1632 |
Oxford Diffraction Xcalibur (Eos, Nova) diffractometer | 7100 independent reflections |
Radiation source: Mova (Mo) X-ray Source | 4182 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.076 |
Detector resolution: 16.0839 pixels mm-1 | θmax = 26.0°, θmin = 2.7° |
ω scans | h = −24→24 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | k = −9→9 |
Tmin = 0.939, Tmax = 0.972 | l = −30→30 |
36561 measured reflections |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.053 | w = 1/[σ2(Fo2) + (0.037P)2] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.118 | (Δ/σ)max < 0.001 |
S = 0.99 | Δρmax = 0.31 e Å−3 |
7100 reflections | Δρmin = −0.21 e Å−3 |
488 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
1 restraint | Extinction coefficient: 0.0012 (2) |
Primary atom site location: structure-invariant direct methods | Absolute structure: Flack (1983) |
Secondary atom site location: difference Fourier map | Absolute structure parameter: −0.05 (8) |
C21H13ClFNO2S | V = 3611.0 (2) Å3 |
Mr = 397.84 | Z = 8 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 19.7280 (6) Å | µ = 0.35 mm−1 |
b = 7.4755 (3) Å | T = 292 K |
c = 24.4847 (7) Å | 0.18 × 0.12 × 0.08 mm |
Oxford Diffraction Xcalibur (Eos, Nova) diffractometer | 7100 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | 4182 reflections with I > 2σ(I) |
Tmin = 0.939, Tmax = 0.972 | Rint = 0.076 |
36561 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | H-atom parameters constrained |
wR(F2) = 0.118 | Δρmax = 0.31 e Å−3 |
S = 0.99 | Δρmin = −0.21 e Å−3 |
7100 reflections | Absolute structure: Flack (1983) |
488 parameters | Absolute structure parameter: −0.05 (8) |
1 restraint |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | ||
S2 | 0.06104 (6) | 0.33720 (18) | 0.47599 (5) | 0.0583 (4) | |
S1 | 0.17610 (6) | 0.63708 (17) | 0.25881 (5) | 0.0595 (4) | |
Cl2 | 0.06464 (8) | 0.7998 (2) | 0.57593 (6) | 0.1029 (6) | |
Cl1 | 0.18806 (8) | 0.1307 (2) | 0.15892 (6) | 0.1061 (6) | |
O1 | 0.22799 (14) | 0.5887 (4) | 0.36472 (11) | 0.0561 (8) | |
N1 | 0.08765 (16) | 0.8291 (5) | 0.31021 (13) | 0.0426 (9) | |
O2 | 0.41192 (16) | 0.4498 (5) | 0.33659 (13) | 0.0686 (10) | |
O3 | 0.00885 (14) | 0.3921 (4) | 0.37068 (11) | 0.0537 (8) | |
N2 | 0.14867 (17) | 0.1432 (5) | 0.42445 (14) | 0.0442 (9) | |
F1 | 0.37852 (17) | 0.3630 (5) | 0.53847 (12) | 0.1056 (12) | |
F2 | −0.14027 (16) | 0.6181 (5) | 0.19584 (12) | 0.0965 (11) | |
C35 | −0.0842 (2) | 0.5483 (6) | 0.33474 (16) | 0.0444 (11) | |
C6 | 0.06876 (18) | 0.8298 (5) | 0.25537 (18) | 0.0420 (10) | |
C27 | 0.1675 (2) | 0.1403 (6) | 0.47895 (18) | 0.0427 (10) | |
C28 | 0.0952 (2) | 0.2386 (5) | 0.41793 (18) | 0.0406 (10) | |
C16 | 0.3100 (2) | 0.3434 (5) | 0.29917 (17) | 0.0397 (10) | |
C37 | −0.0700 (2) | 0.6470 (6) | 0.43582 (17) | 0.0443 (11) | |
C24 | 0.1953 (2) | 0.1670 (7) | 0.5891 (2) | 0.0622 (14) | |
H24 | 0.2059 | 0.1769 | 0.6260 | 0.075* | |
C18 | 0.2180 (2) | 0.1664 (6) | 0.26527 (19) | 0.0530 (12) | |
H18 | 0.1816 | 0.0900 | 0.2717 | 0.064* | |
C26 | 0.2223 (2) | 0.0503 (6) | 0.50034 (18) | 0.0532 (12) | |
H26 | 0.2501 | −0.0184 | 0.4779 | 0.064* | |
C34 | −0.1231 (2) | 0.6039 (6) | 0.29010 (19) | 0.0553 (13) | |
H34 | −0.1627 | 0.6688 | 0.2955 | 0.066* | |
C9 | 0.2631 (2) | 0.5326 (6) | 0.40965 (16) | 0.0446 (11) | |
C1 | 0.1111 (2) | 0.7311 (6) | 0.22139 (19) | 0.0492 (12) | |
C19 | 0.2358 (3) | 0.2103 (7) | 0.21246 (19) | 0.0571 (13) | |
C38 | −0.0117 (2) | 0.7485 (5) | 0.4272 (2) | 0.0473 (12) | |
H38 | 0.0004 | 0.7809 | 0.3918 | 0.057* | |
C15 | 0.3522 (2) | 0.4139 (6) | 0.34429 (18) | 0.0472 (11) | |
C21 | 0.3291 (2) | 0.3796 (6) | 0.24532 (17) | 0.0500 (12) | |
H21 | 0.3673 | 0.4487 | 0.2384 | 0.060* | |
O4 | −0.17413 (16) | 0.5686 (5) | 0.39716 (13) | 0.0701 (10) | |
C17 | 0.2540 (2) | 0.2356 (6) | 0.30809 (19) | 0.0461 (12) | |
H17 | 0.2406 | 0.2100 | 0.3437 | 0.055* | |
C40 | 0.0101 (3) | 0.7524 (7) | 0.5223 (2) | 0.0609 (14) | |
C2 | 0.0976 (2) | 0.7182 (7) | 0.1656 (2) | 0.0652 (14) | |
H2 | 0.1258 | 0.6527 | 0.1427 | 0.078* | |
C10 | 0.2421 (2) | 0.5674 (6) | 0.46288 (17) | 0.0515 (12) | |
H10 | 0.2019 | 0.6291 | 0.4693 | 0.062* | |
C41 | −0.0482 (2) | 0.6569 (7) | 0.53269 (19) | 0.0623 (14) | |
H41 | −0.0604 | 0.6271 | 0.5682 | 0.075* | |
C32 | −0.0457 (3) | 0.4639 (7) | 0.22913 (18) | 0.0631 (14) | |
H32 | −0.0333 | 0.4358 | 0.1935 | 0.076* | |
C29 | 0.0633 (2) | 0.2694 (6) | 0.36384 (19) | 0.0507 (12) | |
H29A | 0.0964 | 0.3179 | 0.3385 | 0.061* | |
H29B | 0.0465 | 0.1574 | 0.3491 | 0.061* | |
C14 | 0.3237 (2) | 0.4423 (6) | 0.39979 (17) | 0.0426 (11) | |
C5 | 0.0125 (2) | 0.9163 (6) | 0.23477 (18) | 0.0535 (12) | |
H5 | −0.0158 | 0.9825 | 0.2575 | 0.064* | |
C31 | −0.0069 (2) | 0.4062 (6) | 0.27210 (17) | 0.0546 (13) | |
H31 | 0.0321 | 0.3393 | 0.2658 | 0.066* | |
C22 | 0.1258 (2) | 0.2402 (6) | 0.51368 (18) | 0.0453 (12) | |
C42 | −0.0883 (2) | 0.6062 (7) | 0.48870 (19) | 0.0585 (13) | |
H42 | −0.1282 | 0.5435 | 0.4950 | 0.070* | |
C11 | 0.2812 (3) | 0.5095 (6) | 0.50601 (18) | 0.0633 (14) | |
H11 | 0.2674 | 0.5295 | 0.5418 | 0.076* | |
C36 | −0.1134 (2) | 0.5866 (6) | 0.39001 (17) | 0.0488 (11) | |
C33 | −0.1023 (3) | 0.5621 (7) | 0.2386 (2) | 0.0635 (14) | |
C39 | 0.0280 (2) | 0.8013 (6) | 0.4703 (2) | 0.0546 (12) | |
H39 | 0.0667 | 0.8696 | 0.4644 | 0.066* | |
C8 | 0.1729 (2) | 0.7062 (6) | 0.37194 (18) | 0.0504 (12) | |
H8A | 0.1884 | 0.8193 | 0.3868 | 0.061* | |
H8B | 0.1401 | 0.6548 | 0.3969 | 0.061* | |
C30 | −0.0263 (2) | 0.4483 (6) | 0.32504 (18) | 0.0458 (11) | |
C4 | −0.0004 (2) | 0.9022 (7) | 0.1803 (2) | 0.0667 (15) | |
H4 | −0.0384 | 0.9592 | 0.1659 | 0.080* | |
C7 | 0.1416 (2) | 0.7339 (6) | 0.31678 (18) | 0.0444 (11) | |
C25 | 0.2354 (2) | 0.0638 (7) | 0.55564 (19) | 0.0610 (13) | |
H25 | 0.2720 | 0.0021 | 0.5705 | 0.073* | |
C20 | 0.2919 (2) | 0.3138 (6) | 0.20268 (19) | 0.0574 (13) | |
H20 | 0.3046 | 0.3394 | 0.1670 | 0.069* | |
C12 | 0.3407 (3) | 0.4220 (7) | 0.49521 (19) | 0.0641 (14) | |
C13 | 0.3629 (2) | 0.3886 (6) | 0.4435 (2) | 0.0575 (13) | |
H13 | 0.4039 | 0.3304 | 0.4378 | 0.069* | |
C23 | 0.1399 (2) | 0.2553 (6) | 0.5689 (2) | 0.0595 (13) | |
H23 | 0.1124 | 0.3236 | 0.5917 | 0.071* | |
C3 | 0.0414 (2) | 0.8049 (8) | 0.1455 (2) | 0.0702 (16) | |
H3 | 0.0314 | 0.7985 | 0.1085 | 0.084* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S2 | 0.0601 (8) | 0.0648 (8) | 0.0499 (7) | 0.0205 (7) | 0.0044 (6) | −0.0056 (7) |
S1 | 0.0573 (7) | 0.0733 (9) | 0.0478 (7) | 0.0237 (6) | 0.0023 (6) | −0.0068 (7) |
Cl2 | 0.1140 (12) | 0.1242 (14) | 0.0707 (10) | −0.0212 (11) | −0.0177 (9) | −0.0367 (10) |
Cl1 | 0.1281 (13) | 0.1298 (15) | 0.0602 (10) | −0.0478 (11) | −0.0180 (9) | −0.0170 (10) |
O1 | 0.0629 (19) | 0.067 (2) | 0.0387 (17) | 0.0271 (17) | −0.0047 (15) | −0.0040 (16) |
N1 | 0.0363 (19) | 0.045 (2) | 0.047 (2) | 0.0055 (17) | 0.0011 (16) | −0.0016 (17) |
O2 | 0.045 (2) | 0.088 (3) | 0.072 (2) | −0.0047 (19) | 0.0011 (18) | −0.006 (2) |
O3 | 0.0607 (19) | 0.060 (2) | 0.0403 (17) | 0.0167 (17) | −0.0029 (15) | −0.0032 (16) |
N2 | 0.0402 (19) | 0.048 (2) | 0.044 (2) | 0.0019 (18) | 0.0020 (17) | −0.0069 (18) |
F1 | 0.113 (2) | 0.145 (3) | 0.0588 (19) | 0.009 (2) | −0.0385 (18) | 0.025 (2) |
F2 | 0.102 (2) | 0.122 (3) | 0.065 (2) | −0.007 (2) | −0.0297 (17) | 0.033 (2) |
C35 | 0.045 (3) | 0.047 (3) | 0.041 (3) | −0.011 (2) | −0.004 (2) | 0.006 (2) |
C6 | 0.041 (2) | 0.043 (3) | 0.043 (3) | −0.001 (2) | 0.001 (2) | 0.003 (2) |
C27 | 0.044 (2) | 0.043 (3) | 0.041 (3) | 0.000 (2) | 0.008 (2) | −0.007 (2) |
C28 | 0.043 (2) | 0.041 (3) | 0.038 (3) | 0.000 (2) | 0.003 (2) | −0.0030 (19) |
C16 | 0.039 (2) | 0.036 (2) | 0.044 (2) | 0.004 (2) | 0.001 (2) | 0.000 (2) |
C37 | 0.050 (3) | 0.041 (3) | 0.042 (3) | 0.007 (2) | 0.003 (2) | −0.003 (2) |
C24 | 0.071 (3) | 0.071 (4) | 0.044 (3) | 0.001 (3) | −0.004 (3) | 0.003 (3) |
C18 | 0.061 (3) | 0.043 (3) | 0.055 (3) | −0.013 (2) | 0.002 (2) | −0.004 (2) |
C26 | 0.044 (3) | 0.061 (3) | 0.055 (3) | 0.007 (2) | 0.003 (2) | −0.005 (2) |
C34 | 0.052 (3) | 0.054 (3) | 0.060 (3) | −0.007 (2) | −0.010 (2) | 0.011 (3) |
C9 | 0.047 (3) | 0.046 (3) | 0.041 (3) | 0.002 (2) | −0.004 (2) | −0.001 (2) |
C1 | 0.043 (2) | 0.058 (3) | 0.046 (3) | 0.010 (2) | 0.001 (2) | 0.004 (2) |
C19 | 0.073 (3) | 0.051 (3) | 0.047 (3) | −0.007 (3) | −0.006 (3) | −0.012 (2) |
C38 | 0.051 (3) | 0.039 (3) | 0.052 (3) | −0.002 (2) | 0.006 (2) | −0.002 (2) |
C15 | 0.046 (3) | 0.041 (3) | 0.054 (3) | 0.004 (2) | −0.006 (2) | 0.001 (2) |
C21 | 0.042 (2) | 0.059 (3) | 0.049 (3) | −0.001 (2) | 0.009 (2) | 0.000 (2) |
O4 | 0.046 (2) | 0.095 (3) | 0.069 (2) | −0.002 (2) | 0.0001 (17) | −0.003 (2) |
C17 | 0.050 (3) | 0.042 (3) | 0.046 (3) | 0.001 (2) | 0.008 (2) | −0.003 (2) |
C40 | 0.068 (3) | 0.062 (3) | 0.053 (3) | −0.003 (3) | 0.004 (3) | −0.022 (3) |
C2 | 0.053 (3) | 0.096 (4) | 0.046 (3) | 0.002 (3) | 0.005 (3) | −0.001 (3) |
C10 | 0.062 (3) | 0.054 (3) | 0.038 (3) | −0.002 (3) | −0.001 (2) | −0.005 (2) |
C41 | 0.067 (3) | 0.074 (4) | 0.045 (3) | 0.006 (3) | 0.013 (3) | −0.008 (3) |
C32 | 0.079 (4) | 0.070 (4) | 0.040 (3) | −0.021 (3) | −0.005 (3) | 0.004 (3) |
C29 | 0.049 (3) | 0.054 (3) | 0.050 (3) | 0.007 (2) | 0.006 (2) | −0.011 (2) |
C14 | 0.047 (3) | 0.043 (3) | 0.038 (2) | 0.002 (2) | −0.010 (2) | −0.001 (2) |
C5 | 0.046 (3) | 0.063 (3) | 0.052 (3) | 0.005 (2) | −0.002 (2) | 0.007 (2) |
C31 | 0.060 (3) | 0.056 (3) | 0.048 (3) | −0.003 (2) | 0.002 (2) | −0.001 (2) |
C22 | 0.048 (2) | 0.046 (3) | 0.042 (3) | 0.001 (2) | 0.001 (2) | 0.002 (2) |
C42 | 0.052 (3) | 0.066 (3) | 0.058 (3) | 0.000 (3) | 0.009 (2) | 0.005 (3) |
C11 | 0.084 (4) | 0.067 (4) | 0.039 (3) | −0.019 (3) | −0.008 (3) | 0.005 (3) |
C36 | 0.046 (3) | 0.044 (3) | 0.056 (3) | 0.005 (2) | −0.002 (2) | 0.006 (2) |
C33 | 0.068 (3) | 0.068 (4) | 0.055 (3) | −0.011 (3) | −0.018 (3) | 0.015 (3) |
C39 | 0.053 (3) | 0.048 (3) | 0.063 (3) | −0.007 (2) | 0.006 (3) | −0.008 (3) |
C8 | 0.056 (3) | 0.052 (3) | 0.043 (3) | 0.020 (2) | 0.000 (2) | 0.002 (2) |
C30 | 0.057 (3) | 0.040 (3) | 0.041 (3) | −0.003 (2) | −0.008 (2) | 0.003 (2) |
C4 | 0.052 (3) | 0.085 (4) | 0.063 (3) | 0.007 (3) | −0.003 (3) | 0.020 (3) |
C7 | 0.046 (2) | 0.046 (3) | 0.041 (3) | 0.003 (2) | 0.003 (2) | 0.001 (2) |
C25 | 0.056 (3) | 0.069 (4) | 0.058 (3) | 0.009 (3) | −0.007 (2) | −0.001 (3) |
C20 | 0.067 (3) | 0.064 (4) | 0.041 (3) | 0.005 (3) | 0.003 (2) | 0.001 (2) |
C12 | 0.075 (4) | 0.072 (4) | 0.045 (3) | −0.002 (3) | −0.025 (3) | 0.018 (3) |
C13 | 0.057 (3) | 0.060 (3) | 0.056 (3) | 0.004 (3) | −0.013 (2) | 0.010 (3) |
C23 | 0.067 (3) | 0.067 (4) | 0.044 (3) | 0.009 (3) | 0.008 (3) | −0.004 (3) |
C3 | 0.059 (3) | 0.107 (5) | 0.045 (3) | −0.005 (3) | −0.007 (3) | 0.014 (3) |
S2—C22 | 1.735 (4) | C1—C2 | 1.395 (6) |
S2—C28 | 1.737 (4) | C19—C20 | 1.371 (6) |
S1—C1 | 1.726 (4) | C38—C39 | 1.373 (6) |
S1—C7 | 1.733 (4) | C38—H38 | 0.9300 |
Cl2—C40 | 1.734 (5) | C15—C14 | 1.486 (6) |
Cl1—C19 | 1.721 (5) | C21—C20 | 1.368 (6) |
O1—C9 | 1.366 (5) | C21—H21 | 0.9300 |
O1—C8 | 1.408 (4) | O4—C36 | 1.218 (5) |
N1—C7 | 1.291 (5) | C17—H17 | 0.9300 |
N1—C6 | 1.393 (5) | C40—C39 | 1.369 (7) |
O2—C15 | 1.224 (5) | C40—C41 | 1.378 (6) |
O3—C30 | 1.380 (5) | C2—C3 | 1.374 (6) |
O3—C29 | 1.422 (5) | C2—H2 | 0.9300 |
N2—C28 | 1.283 (5) | C10—C11 | 1.378 (6) |
N2—C27 | 1.386 (5) | C10—H10 | 0.9300 |
F1—C12 | 1.369 (5) | C41—C42 | 1.389 (6) |
F2—C33 | 1.354 (5) | C41—H41 | 0.9300 |
C35—C30 | 1.387 (6) | C32—C33 | 1.356 (7) |
C35—C34 | 1.398 (5) | C32—C31 | 1.371 (6) |
C35—C36 | 1.498 (6) | C32—H32 | 0.9300 |
C6—C5 | 1.380 (5) | C29—H29A | 0.9700 |
C6—C1 | 1.391 (6) | C29—H29B | 0.9700 |
C27—C26 | 1.376 (5) | C14—C13 | 1.381 (5) |
C27—C22 | 1.399 (5) | C5—C4 | 1.363 (6) |
C28—C29 | 1.485 (6) | C5—H5 | 0.9300 |
C16—C17 | 1.385 (5) | C31—C30 | 1.388 (5) |
C16—C21 | 1.398 (6) | C31—H31 | 0.9300 |
C16—C15 | 1.480 (6) | C22—C23 | 1.386 (6) |
C37—C42 | 1.378 (6) | C42—H42 | 0.9300 |
C37—C38 | 1.394 (5) | C11—C12 | 1.369 (7) |
C37—C36 | 1.481 (6) | C11—H11 | 0.9300 |
C24—C23 | 1.369 (6) | C39—H39 | 0.9300 |
C24—C25 | 1.376 (6) | C8—C7 | 1.500 (6) |
C24—H24 | 0.9300 | C8—H8A | 0.9700 |
C18—C17 | 1.368 (6) | C8—H8B | 0.9700 |
C18—C19 | 1.380 (6) | C4—C3 | 1.391 (6) |
C18—H18 | 0.9300 | C4—H4 | 0.9300 |
C26—C25 | 1.382 (6) | C25—H25 | 0.9300 |
C26—H26 | 0.9300 | C20—H20 | 0.9300 |
C34—C33 | 1.362 (7) | C12—C13 | 1.362 (6) |
C34—H34 | 0.9300 | C13—H13 | 0.9300 |
C9—C10 | 1.392 (5) | C23—H23 | 0.9300 |
C9—C14 | 1.394 (6) | C3—H3 | 0.9300 |
C22—S2—C28 | 88.4 (2) | C33—C32—C31 | 119.9 (4) |
C1—S1—C7 | 88.4 (2) | C33—C32—H32 | 120.0 |
C9—O1—C8 | 118.8 (3) | C31—C32—H32 | 120.0 |
C7—N1—C6 | 110.0 (3) | O3—C29—C28 | 108.4 (4) |
C30—O3—C29 | 118.7 (3) | O3—C29—H29A | 110.0 |
C28—N2—C27 | 110.4 (3) | C28—C29—H29A | 110.0 |
C30—C35—C34 | 118.6 (4) | O3—C29—H29B | 110.0 |
C30—C35—C36 | 125.0 (4) | C28—C29—H29B | 110.0 |
C34—C35—C36 | 116.1 (4) | H29A—C29—H29B | 108.4 |
C5—C6—N1 | 124.7 (4) | C13—C14—C9 | 119.2 (4) |
C5—C6—C1 | 120.9 (4) | C13—C14—C15 | 117.1 (4) |
N1—C6—C1 | 114.5 (4) | C9—C14—C15 | 123.5 (4) |
C26—C27—N2 | 125.8 (4) | C4—C5—C6 | 118.2 (5) |
C26—C27—C22 | 119.4 (4) | C4—C5—H5 | 120.9 |
N2—C27—C22 | 114.8 (4) | C6—C5—H5 | 120.9 |
N2—C28—C29 | 123.1 (4) | C32—C31—C30 | 119.5 (4) |
N2—C28—S2 | 116.9 (3) | C32—C31—H31 | 120.3 |
C29—C28—S2 | 120.0 (3) | C30—C31—H31 | 120.3 |
C17—C16—C21 | 118.5 (4) | C23—C22—C27 | 121.3 (4) |
C17—C16—C15 | 122.5 (4) | C23—C22—S2 | 129.2 (4) |
C21—C16—C15 | 118.9 (4) | C27—C22—S2 | 109.5 (3) |
C42—C37—C38 | 118.6 (4) | C37—C42—C41 | 121.3 (4) |
C42—C37—C36 | 119.5 (4) | C37—C42—H42 | 119.4 |
C38—C37—C36 | 121.9 (4) | C41—C42—H42 | 119.4 |
C23—C24—C25 | 121.1 (5) | C12—C11—C10 | 118.8 (4) |
C23—C24—H24 | 119.5 | C12—C11—H11 | 120.6 |
C25—C24—H24 | 119.5 | C10—C11—H11 | 120.6 |
C17—C18—C19 | 119.7 (4) | O4—C36—C37 | 119.6 (4) |
C17—C18—H18 | 120.1 | O4—C36—C35 | 119.1 (4) |
C19—C18—H18 | 120.1 | C37—C36—C35 | 121.4 (4) |
C27—C26—C25 | 119.0 (4) | F2—C33—C32 | 119.4 (5) |
C27—C26—H26 | 120.5 | F2—C33—C34 | 118.6 (5) |
C25—C26—H26 | 120.5 | C32—C33—C34 | 122.0 (4) |
C33—C34—C35 | 119.4 (4) | C40—C39—C38 | 119.4 (4) |
C33—C34—H34 | 120.3 | C40—C39—H39 | 120.3 |
C35—C34—H34 | 120.3 | C38—C39—H39 | 120.3 |
O1—C9—C10 | 123.1 (4) | O1—C8—C7 | 106.9 (3) |
O1—C9—C14 | 116.4 (4) | O1—C8—H8A | 110.3 |
C10—C9—C14 | 120.5 (4) | C7—C8—H8A | 110.3 |
C2—C1—C6 | 120.5 (4) | O1—C8—H8B | 110.3 |
C2—C1—S1 | 129.3 (4) | C7—C8—H8B | 110.3 |
C6—C1—S1 | 110.2 (3) | H8A—C8—H8B | 108.6 |
C20—C19—C18 | 120.3 (4) | O3—C30—C31 | 123.3 (4) |
C20—C19—Cl1 | 120.3 (4) | O3—C30—C35 | 116.1 (4) |
C18—C19—Cl1 | 119.5 (4) | C31—C30—C35 | 120.6 (4) |
C39—C38—C37 | 120.7 (5) | C5—C4—C3 | 121.9 (5) |
C39—C38—H38 | 119.7 | C5—C4—H4 | 119.0 |
C37—C38—H38 | 119.7 | C3—C4—H4 | 119.0 |
O2—C15—C16 | 120.3 (4) | N1—C7—C8 | 121.9 (4) |
O2—C15—C14 | 118.3 (4) | N1—C7—S1 | 116.9 (3) |
C16—C15—C14 | 121.4 (4) | C8—C7—S1 | 121.2 (3) |
C20—C21—C16 | 120.4 (4) | C24—C25—C26 | 121.0 (4) |
C20—C21—H21 | 119.8 | C24—C25—H25 | 119.5 |
C16—C21—H21 | 119.8 | C26—C25—H25 | 119.5 |
C18—C17—C16 | 120.9 (4) | C21—C20—C19 | 120.2 (4) |
C18—C17—H17 | 119.6 | C21—C20—H20 | 119.9 |
C16—C17—H17 | 119.6 | C19—C20—H20 | 119.9 |
C39—C40—C41 | 121.7 (5) | C13—C12—F1 | 119.0 (5) |
C39—C40—Cl2 | 119.3 (4) | C13—C12—C11 | 122.9 (4) |
C41—C40—Cl2 | 118.9 (4) | F1—C12—C11 | 118.2 (5) |
C3—C2—C1 | 118.2 (5) | C12—C13—C14 | 119.1 (4) |
C3—C2—H2 | 120.9 | C12—C13—H13 | 120.4 |
C1—C2—H2 | 120.9 | C14—C13—H13 | 120.4 |
C11—C10—C9 | 119.5 (4) | C24—C23—C22 | 118.1 (4) |
C11—C10—H10 | 120.3 | C24—C23—H23 | 120.9 |
C9—C10—H10 | 120.3 | C22—C23—H23 | 120.9 |
C40—C41—C42 | 118.2 (4) | C2—C3—C4 | 120.4 (5) |
C40—C41—H41 | 120.9 | C2—C3—H3 | 119.8 |
C42—C41—H41 | 120.9 | C4—C3—H3 | 119.8 |
C7—N1—C6—C5 | 178.7 (4) | C26—C27—C22—S2 | −179.7 (3) |
C7—N1—C6—C1 | −0.1 (5) | N2—C27—C22—S2 | 0.6 (5) |
C28—N2—C27—C26 | 179.8 (4) | C28—S2—C22—C23 | 177.5 (5) |
C28—N2—C27—C22 | −0.5 (5) | C28—S2—C22—C27 | −0.4 (3) |
C27—N2—C28—C29 | 179.1 (4) | C38—C37—C42—C41 | −3.1 (7) |
C27—N2—C28—S2 | 0.2 (5) | C36—C37—C42—C41 | 178.5 (4) |
C22—S2—C28—N2 | 0.1 (3) | C40—C41—C42—C37 | 1.2 (7) |
C22—S2—C28—C29 | −178.8 (4) | C9—C10—C11—C12 | 1.2 (7) |
N2—C27—C26—C25 | 178.5 (4) | C42—C37—C36—O4 | 29.3 (6) |
C22—C27—C26—C25 | −1.2 (6) | C38—C37—C36—O4 | −148.9 (4) |
C30—C35—C34—C33 | −1.4 (7) | C42—C37—C36—C35 | −151.1 (4) |
C36—C35—C34—C33 | −175.2 (4) | C38—C37—C36—C35 | 30.6 (6) |
C8—O1—C9—C10 | 8.4 (6) | C30—C35—C36—O4 | −134.0 (5) |
C8—O1—C9—C14 | −169.3 (4) | C34—C35—C36—O4 | 39.3 (6) |
C5—C6—C1—C2 | 0.2 (7) | C30—C35—C36—C37 | 46.5 (7) |
N1—C6—C1—C2 | 179.1 (4) | C34—C35—C36—C37 | −140.2 (4) |
C5—C6—C1—S1 | −179.3 (3) | C31—C32—C33—F2 | −179.9 (4) |
N1—C6—C1—S1 | −0.4 (5) | C31—C32—C33—C34 | −1.1 (8) |
C7—S1—C1—C2 | −178.8 (5) | C35—C34—C33—F2 | −179.5 (4) |
C7—S1—C1—C6 | 0.6 (3) | C35—C34—C33—C32 | 1.7 (8) |
C17—C18—C19—C20 | 4.0 (7) | C41—C40—C39—C38 | −2.4 (7) |
C17—C18—C19—Cl1 | −177.1 (4) | Cl2—C40—C39—C38 | 173.6 (3) |
C42—C37—C38—C39 | 2.3 (6) | C37—C38—C39—C40 | 0.4 (7) |
C36—C37—C38—C39 | −179.4 (4) | C9—O1—C8—C7 | −176.1 (4) |
C17—C16—C15—O2 | 153.1 (4) | C29—O3—C30—C31 | −6.9 (6) |
C21—C16—C15—O2 | −23.8 (6) | C29—O3—C30—C35 | 171.6 (4) |
C17—C16—C15—C14 | −26.6 (6) | C32—C31—C30—O3 | 178.4 (4) |
C21—C16—C15—C14 | 156.5 (4) | C32—C31—C30—C35 | −0.1 (7) |
C17—C16—C21—C20 | 1.9 (6) | C34—C35—C30—O3 | −177.9 (4) |
C15—C16—C21—C20 | 178.9 (4) | C36—C35—C30—O3 | −4.8 (6) |
C19—C18—C17—C16 | −2.8 (7) | C34—C35—C30—C31 | 0.7 (6) |
C21—C16—C17—C18 | −0.1 (6) | C36—C35—C30—C31 | 173.9 (4) |
C15—C16—C17—C18 | −177.1 (4) | C6—C5—C4—C3 | −0.4 (7) |
C6—C1—C2—C3 | −0.2 (7) | C6—N1—C7—C8 | −178.8 (4) |
S1—C1—C2—C3 | 179.2 (4) | C6—N1—C7—S1 | 0.6 (5) |
O1—C9—C10—C11 | −178.5 (4) | O1—C8—C7—N1 | 176.7 (4) |
C14—C9—C10—C11 | −0.9 (7) | O1—C8—C7—S1 | −2.7 (5) |
C39—C40—C41—C42 | 1.7 (7) | C1—S1—C7—N1 | −0.8 (4) |
Cl2—C40—C41—C42 | −174.4 (4) | C1—S1—C7—C8 | 178.7 (4) |
C30—O3—C29—C28 | 176.6 (3) | C23—C24—C25—C26 | 2.0 (8) |
N2—C28—C29—O3 | −175.2 (4) | C27—C26—C25—C24 | −0.9 (7) |
S2—C28—C29—O3 | 3.6 (5) | C16—C21—C20—C19 | −0.7 (7) |
O1—C9—C14—C13 | 177.4 (4) | C18—C19—C20—C21 | −2.3 (7) |
C10—C9—C14—C13 | −0.4 (7) | Cl1—C19—C20—C21 | 178.9 (4) |
O1—C9—C14—C15 | 3.1 (6) | C10—C11—C12—C13 | −0.3 (8) |
C10—C9—C14—C15 | −174.7 (4) | C10—C11—C12—F1 | −179.1 (4) |
O2—C15—C14—C13 | −43.0 (6) | F1—C12—C13—C14 | 177.7 (4) |
C16—C15—C14—C13 | 136.7 (4) | C11—C12—C13—C14 | −1.0 (8) |
O2—C15—C14—C9 | 131.3 (5) | C9—C14—C13—C12 | 1.4 (7) |
C16—C15—C14—C9 | −49.0 (6) | C15—C14—C13—C12 | 176.0 (4) |
N1—C6—C5—C4 | −178.7 (4) | C25—C24—C23—C22 | −0.9 (7) |
C1—C6—C5—C4 | 0.1 (7) | C27—C22—C23—C24 | −1.1 (7) |
C33—C32—C31—C30 | 0.3 (7) | S2—C22—C23—C24 | −178.9 (4) |
C26—C27—C22—C23 | 2.2 (6) | C1—C2—C3—C4 | −0.1 (8) |
N2—C27—C22—C23 | −177.5 (4) | C5—C4—C3—C2 | 0.4 (8) |
Cg1 and Cg2 are the centroids of the thiazole rings S1/C1/C6/N1/C7 and S2/C22/C27/N2/C28, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···F1i | 0.93 | 2.52 | 3.091 (6) | 120 |
C5—H5···O2ii | 0.93 | 2.46 | 3.340 (5) | 158 |
C26—H26···O4iii | 0.93 | 2.51 | 3.369 (5) | 154 |
C18—H18···Cg1iv | 0.93 | 2.83 | 3.686 (5) | 154 |
C39—H39···Cg2v | 0.93 | 2.82 | 3.619 (5) | 145 |
Symmetry codes: (i) −x+1/2, y+1/2, z−1/2; (ii) x−1/2, −y+3/2, z; (iii) x+1/2, −y+1/2, z; (iv) x, y−1, z; (v) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C21H13ClFNO2S |
Mr | 397.84 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 292 |
a, b, c (Å) | 19.7280 (6), 7.4755 (3), 24.4847 (7) |
V (Å3) | 3611.0 (2) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.35 |
Crystal size (mm) | 0.18 × 0.12 × 0.08 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur (Eos, Nova) |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.939, 0.972 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 36561, 7100, 4182 |
Rint | 0.076 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.118, 0.99 |
No. of reflections | 7100 |
No. of parameters | 488 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.21 |
Absolute structure | Flack (1983) |
Absolute structure parameter | −0.05 (8) |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008), PLATON (Spek, 2009) and PARST (Nardelli, 1995).
Cg1 and Cg2 are the centroids of the thiazole rings S1/C1/C6/N1/C7 and S2/C22/C27/N2/C28, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···F1i | 0.93 | 2.52 | 3.091 (6) | 120 |
C5—H5···O2ii | 0.93 | 2.46 | 3.340 (5) | 158 |
C26—H26···O4iii | 0.93 | 2.51 | 3.369 (5) | 154 |
C18—H18···Cg1iv | 0.93 | 2.83 | 3.686 (5) | 154 |
C39—H39···Cg2v | 0.93 | 2.82 | 3.619 (5) | 145 |
Symmetry codes: (i) −x+1/2, y+1/2, z−1/2; (ii) x−1/2, −y+3/2, z; (iii) x+1/2, −y+1/2, z; (iv) x, y−1, z; (v) x, y+1, z. |
Acknowledgements
We are grateful to SSCU, IISc, India, for the Oxford Diffraction facility funded under DST–FIST (Level II) and the University of KwaZulu-Natal, South Africa, for facilities.
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.
Substituted benzothiazole derivatives exhibit various pharmacological properties such as analgesic, antimicrobial, antidepressant, antitumor, antihypertensive, anthelmintic, and herbicidal activity (Kelarev et al., 2003). Thus the biological features of new benzothiazole derivatives is of great scientific interest (Telvekar et al., 2012; Saeed et al., 2010; Rana et al., 2007). Several crystal structures of the benzothiazoles have been reported (Nayak et al., 2013; Venugopala et al., 2012). Here, we report the single-crystal structure of the title compound.
The title compound, C21H13ClFNO2S, prefers two symmetry independent molecules in the asymmetric unit (Fig. 1). The conformation of the individual molecules adopt the dihedral angles of 64.8 (2)° and 66.6 (2)° between the planes of their respective benzothiazole and chlorophenylmethanone groups. Intermolecular C—H···O and C—H···F hydrogen bond chains stabilize the three dimension molecular assembly. Further, the C—H···π [2.83 Å, Cg1 = Centroid of five membered ring S1/C1/C6/N1/C7; 2.82 Å, Cg2 = Centroid of five membered ring S2/C22/C27/N2/C28] and π···π [Cg3···Cg4 = 3.877 (3) Å, Cg3 = Centroid of six membered ring C16—C21 and Cg4 = Centroid of six membered ring C30—C35] interactions lead to criss-cross molecular packing along the c axis.