organic compounds
2-Methyl-5-[(3-methyl-4-nitrobenzyl)sulfanyl]-1,3,4-thiadiazole
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, cDepartment of Chemistry, Manipal Institute of Technology, Manipal 576 104, India, dOrganic Chemistry Division, Department of Chemistry, National Institute of Technology-Karnataka, Surathkal, Mangalore 575 025, India, and eDepartment of Printing, Manipal Institute of Technology, Manipal 576 104, India
*Correspondence e-mail: hkfun@usm.my
The molecule of the title thiadiazole derivative, C11H11N3O2S2, has a butterfly-like structure and the whole molecule is disordered with a site-occupancy ratio of 0.629 (4):0.371 (4). The molecule is disordered in such a way that the 3-methyl-4-nitrophenyl units of the major and minor components are approximately related by 180° rotation around the C—N bond axis. The dihedral angle between the 1,3,4-thiadiazole and benzene rings is 70.8 (4)° in the major component and 74.9 (6)° in the minor component. In the crystal, molecules are arranged into screw chains along the c axis. These chains are stacked along the b axis. Weak intermolecular C—H⋯O and C—H⋯π interactions and a short C⋯O contact [3.005 (7) Å] are present.
Related literature
For bond-length data, see: Allen et al. (1987). For related structures, see: Fun et al. (2011); Wang et al. (2010). For background to and applications of thiadiazole derivatives, see: Bernard et al. (1985); Chandrakantha et al. (2010); Isloor et al. (2010); Kalluraya et al. (2004); Oruç et al. (2004); Salimon et al. (2010). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); 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
https://doi.org/10.1107/S1600536810052505/is2643sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810052505/is2643Isup2.hkl
The title compound was synthesized by adding 3-methyl-4-nitrobenzylbromide (3.47 g, 0.0151 mol) dropwise to a stirred solution of 5-methyl-1,3,4-thiadiazole-2-thiol (2.00 g, 0.0151 mol) and anhydrous potassium carbonate (4.16 g, 0.03 mol) in dry acetonitrile (50 ml) at room temperature and the reaction mixture was stirred at room temperature for 5 h. After the completion of reaction, the reaction mixture was filtered and the filtrate was concentrated. The crude product was recrystallized with hot ethanol to afford the title compound as yellow solid (2.20 g, 52% yield). Yellow plate-shaped single crystals of the title compound suitable for x-ray
were recrystalized from ethanol by the slow evaporation of the solvent at room temperature after several days (M.p. 443–445 K).All H atoms were positioned geometrically and allowed to ride on their parent atoms, with d(C—H) = 0.93 Å for aromatic, 0.97 Å for CH2 and 0.96 Å for CH3 atoms. The Uiso(H) values were constrained to be 1.5Ueq of the
for methyl H atoms and 1.2Ueq for the remaining H atoms. A rotating group model was used for the methyl groups. The highest residual electron density peak is located at 0.70 Å from C7 and the deepest hole is located at 1.22 Å from S1A. The whole molecule is disordered over two sites with occupancies 0.629 (3) and 0.371 (3). Initially rigidity and similarity restraints were applied. After a was reached, all these restraints were removed before the final refinement.Many classes of thiadiazole compounds have been intensely investigated with a number of them having found to be biologically and pharmacologically active. The 1,3,4-thiadiazole derivatives exhibit a wide spectrum of pharmacological and biological properties such as antituberculosis, anti-inflammatory, antifungal and antibacterial activities (Bernard et al., 1985; Chandrakantha et al., 2010; Isloor et al., 2010; Kalluraya et al., 2004; Oruç et al., 2004; Salimon et al., 2010). The title 1,3,4-thiadiazole derivative, (I), was synthesized in order to study its biological activity. Herein we report the
of (I).The whole molecule of (I), C11H11N3O2S2, is disordered over two sites with the major component and minor A components having refined site-occupancy ratio of 0.629 (3)/0.371 (3) and has a butterfly-like structure with a torsion angle C8–S1–C7–C6 = -79.8 (5)° in major component [-79.6 (9)° in minor A component]. The molecule is disordered in such a way that the 3-methyl-4-nitrophenyl unit in the major and minor components is related by 180° rotation. The dihedral angle between the 1,3,4-thiadiazole and benzene rings is 70.8 (4)° in the major component [74.9 (6)° in the minor A component]. In both components the nitro group is slightly twisted with respect to the attached benzene ring with the torsion angles O2–N3–C3–C2 = 8.4 (4)° and O3–N3–C3–C2 = -172.5 (3)° in the major component [the corresponding values are -12.1 (7) and 168.7 (5)° in the minor A component]. The bond distances are of normal values (Allen et al., 1987) and are comparable with the related structures (Fun et al., 2011; Wang et al., 2010).
In the crystal packing (Fig. 2), the molecules are arranged into screw chains along the c axis. These chains are stacked along the b axis. The crystal is stabilized by C—H···O and C—H···π weak interactions (Table 1). A short C···O contact [3.005 (7) Å; symmetry code: 1/2 + x, -1/2 - y, z] is observed.
For bond-length data, see: Allen et al. (1987). For related structures, see: Fun et al. (2011); Wang et al. (2010). For background to and applications of thiadiazole derivatives, see: Bernard et al. (1985); Chandrakantha et al. (2010); Isloor et al. (2010); Kalluraya et al. (2004); Oruç et al. (2004); Salimon et al. (2010). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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 molecular structure of the title compound, showing 50% probability displacement ellipsoids and the atom-numbering scheme. Open bond show the minor A component. | |
Fig. 2. The crystal packing of the title compound viewd along the b axis, showing screw chains running along the c axis. |
C11H11N3O2S2 | Dx = 1.494 Mg m−3 |
Mr = 281.37 | Melting point = 443–445 K |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 3.12 reflections |
a = 13.8210 (14) Å | θ = 30.0–2899° |
b = 4.5720 (5) Å | µ = 0.42 mm−1 |
c = 19.7929 (19) Å | T = 100 K |
V = 1250.7 (2) Å3 | Plate, yellow |
Z = 4 | 0.46 × 0.30 × 0.10 mm |
F(000) = 584 |
Bruker APEX DUO CCD area-detector diffractometer | 3754 independent reflections |
Radiation source: sealed tube | 3250 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
φ and ω scans | θmax = 33.7°, θmin = 3.1° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −21→21 |
Tmin = 0.831, Tmax = 0.959 | k = −7→6 |
10019 measured reflections | l = −30→21 |
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)] = 0.031 | H-atom parameters constrained |
wR(F2) = 0.091 | w = 1/[σ2(Fo2) + (0.0501P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.10 | (Δ/σ)max = 0.001 |
3754 reflections | Δρmax = 0.45 e Å−3 |
330 parameters | Δρmin = −0.42 e Å−3 |
1 restraint | Absolute structure: Flack (1983), 1234 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.04 (6) |
C11H11N3O2S2 | V = 1250.7 (2) Å3 |
Mr = 281.37 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 13.8210 (14) Å | µ = 0.42 mm−1 |
b = 4.5720 (5) Å | T = 100 K |
c = 19.7929 (19) Å | 0.46 × 0.30 × 0.10 mm |
Bruker APEX DUO CCD area-detector diffractometer | 3754 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3250 reflections with I > 2σ(I) |
Tmin = 0.831, Tmax = 0.959 | Rint = 0.026 |
10019 measured reflections |
R[F2 > 2σ(F2)] = 0.031 | H-atom parameters constrained |
wR(F2) = 0.091 | Δρmax = 0.45 e Å−3 |
S = 1.10 | Δρmin = −0.42 e Å−3 |
3754 reflections | Absolute structure: Flack (1983), 1234 Friedel pairs |
330 parameters | Absolute structure parameter: 0.04 (6) |
1 restraint |
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K. |
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) | |
S1 | 0.03130 (17) | 0.3490 (8) | 0.96362 (19) | 0.0300 (3) | 0.629 (4) |
S2 | 0.1578 (2) | −0.0159 (8) | 0.8790 (3) | 0.0328 (6) | 0.629 (4) |
O2 | −0.0136 (2) | −0.4228 (6) | 1.29413 (14) | 0.0518 (8) | 0.629 (4) |
O3 | −0.1559 (3) | −0.4789 (7) | 1.25002 (19) | 0.0478 (9) | 0.629 (4) |
N1 | 0.2757 (4) | −0.0884 (15) | 0.9791 (3) | 0.0420 (11) | 0.629 (4) |
N2 | 0.2002 (4) | 0.0921 (19) | 1.0023 (4) | 0.0346 (12) | 0.629 (4) |
N3 | −0.0749 (2) | −0.3679 (6) | 1.25069 (13) | 0.0349 (6) | 0.629 (4) |
C1 | 0.0766 (3) | 0.1353 (6) | 1.14831 (15) | 0.0289 (5) | 0.629 (4) |
H1A | 0.1410 | 0.1947 | 1.1471 | 0.035* | 0.629 (4) |
C2 | 0.0461 (3) | −0.0654 (6) | 1.19695 (14) | 0.0289 (5) | 0.629 (4) |
H2A | 0.0897 | −0.1386 | 1.2285 | 0.035* | 0.629 (4) |
C3 | −0.0489 (4) | −0.1543 (6) | 1.19794 (14) | 0.0262 (5) | 0.629 (4) |
C4 | −0.1181 (3) | −0.0516 (6) | 1.15221 (16) | 0.0278 (5) | 0.629 (4) |
C5 | −0.0843 (3) | 0.1537 (7) | 1.10453 (16) | 0.0266 (6) | 0.629 (4) |
H5A | −0.1281 | 0.2301 | 1.0735 | 0.032* | 0.629 (4) |
C6 | 0.0110 (3) | 0.2467 (7) | 1.10173 (18) | 0.0244 (5) | 0.629 (4) |
C7 | 0.0414 (3) | 0.4654 (12) | 1.0497 (3) | 0.0319 (9) | 0.629 (4) |
H7A | 0.1082 | 0.5185 | 1.0583 | 0.038* | 0.629 (4) |
H7B | 0.0026 | 0.6404 | 1.0556 | 0.038* | 0.629 (4) |
C8 | 0.1361 (6) | 0.136 (2) | 0.9548 (6) | 0.0258 (13) | 0.629 (4) |
C9 | 0.2662 (7) | −0.157 (3) | 0.9161 (5) | 0.0336 (14) | 0.629 (4) |
C10 | 0.3367 (8) | −0.341 (2) | 0.8795 (5) | 0.050 (2) | 0.629 (4) |
H10A | 0.3740 | −0.4522 | 0.9113 | 0.075* | 0.629 (4) |
H10B | 0.3791 | −0.2182 | 0.8535 | 0.075* | 0.629 (4) |
H10C | 0.3029 | −0.4718 | 0.8498 | 0.075* | 0.629 (4) |
S1A | 0.0080 (3) | 0.3638 (14) | 0.9625 (4) | 0.0331 (7) | 0.371 (4) |
S2A | 0.1561 (5) | −0.0237 (15) | 0.8860 (6) | 0.0398 (14) | 0.371 (4) |
O2A | −0.0852 (4) | −0.5184 (9) | 1.2745 (3) | 0.0507 (12) | 0.371 (4) |
O3A | −0.2234 (4) | −0.4513 (11) | 1.2302 (3) | 0.0600 (14) | 0.371 (4) |
N1A | 0.2532 (5) | −0.046 (2) | 0.9912 (4) | 0.0311 (14) | 0.371 (4) |
N2A | 0.1738 (7) | 0.115 (3) | 1.0101 (6) | 0.0321 (15) | 0.371 (4) |
N3A | −0.1378 (4) | −0.3973 (13) | 1.2341 (3) | 0.0327 (11) | 0.371 (4) |
C1A | 0.0286 (4) | 0.1374 (9) | 1.1504 (2) | 0.0254 (8) | 0.371 (4) |
H1B | 0.0910 | 0.2118 | 1.1541 | 0.031* | 0.371 (4) |
C2A | −0.0029 (4) | −0.0698 (9) | 1.1981 (2) | 0.0196 (7) | 0.371 (4) |
C3A | −0.0968 (4) | −0.1718 (9) | 1.1884 (2) | 0.0232 (8) | 0.371 (4) |
C4A | −0.1560 (4) | −0.0847 (11) | 1.1368 (3) | 0.0292 (10) | 0.371 (4) |
H4B | −0.2178 | −0.1628 | 1.1322 | 0.035* | 0.371 (4) |
C5A | −0.1220 (5) | 0.1226 (12) | 1.0913 (3) | 0.0320 (11) | 0.371 (4) |
H5B | −0.1613 | 0.1869 | 1.0562 | 0.038* | 0.371 (4) |
C6A | −0.0289 (5) | 0.2336 (11) | 1.0987 (3) | 0.0238 (10) | 0.371 (4) |
C7A | 0.0060 (7) | 0.479 (2) | 1.0507 (5) | 0.0379 (19) | 0.371 (4) |
H7C | 0.0705 | 0.5389 | 1.0640 | 0.045* | 0.371 (4) |
H7D | −0.0365 | 0.6463 | 1.0553 | 0.045* | 0.371 (4) |
C8A | 0.1157 (10) | 0.166 (4) | 0.9600 (8) | 0.0220 (18) | 0.371 (4) |
C9A | 0.2489 (11) | −0.138 (4) | 0.9296 (7) | 0.0294 (19) | 0.371 (4) |
C10A | 0.3250 (10) | −0.317 (4) | 0.8965 (8) | 0.043 (3) | 0.371 (4) |
H10D | 0.3736 | −0.3676 | 0.9291 | 0.065* | 0.371 (4) |
H10E | 0.3539 | −0.2066 | 0.8606 | 0.065* | 0.371 (4) |
H10F | 0.2966 | −0.4921 | 0.8786 | 0.065* | 0.371 (4) |
C11 | −0.2234 (2) | −0.1340 (8) | 1.14972 (19) | 0.0438 (7) | 0.629 (4) |
H11A | −0.2292 | −0.3416 | 1.1436 | 0.066* | 0.629 (4) |
H11B | −0.2540 | −0.0349 | 1.1127 | 0.066* | 0.629 (4) |
H11C | −0.2541 | −0.0783 | 1.1913 | 0.066* | 0.629 (4) |
C11A | 0.0647 (3) | −0.1528 (12) | 1.2541 (2) | 0.0357 (11) | 0.371 (4) |
H11D | 0.1235 | −0.0425 | 1.2500 | 0.053* | 0.371 (4) |
H11E | 0.0790 | −0.3579 | 1.2513 | 0.053* | 0.371 (4) |
H11F | 0.0348 | −0.1111 | 1.2968 | 0.053* | 0.371 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0368 (8) | 0.0311 (6) | 0.0220 (4) | 0.0045 (6) | −0.0004 (8) | 0.0056 (4) |
S2 | 0.0371 (10) | 0.0316 (9) | 0.0298 (14) | 0.0018 (7) | −0.0078 (6) | 0.0015 (6) |
O2 | 0.0612 (16) | 0.0623 (16) | 0.0319 (13) | 0.0179 (13) | 0.0060 (11) | 0.0219 (12) |
O3 | 0.067 (2) | 0.0426 (16) | 0.0343 (17) | −0.0141 (14) | 0.0107 (15) | 0.0050 (11) |
N1 | 0.032 (2) | 0.051 (2) | 0.043 (3) | 0.0138 (15) | 0.0031 (15) | 0.0084 (18) |
N2 | 0.027 (2) | 0.050 (3) | 0.027 (2) | −0.003 (2) | −0.0033 (17) | 0.0076 (17) |
N3 | 0.0559 (17) | 0.0290 (12) | 0.0197 (10) | 0.0099 (10) | 0.0105 (10) | 0.0022 (9) |
C1 | 0.0360 (15) | 0.0260 (12) | 0.0248 (12) | −0.0017 (11) | −0.0003 (11) | −0.0036 (9) |
C2 | 0.0373 (16) | 0.0297 (12) | 0.0197 (11) | 0.0073 (11) | −0.0029 (10) | −0.0019 (9) |
C3 | 0.0370 (17) | 0.0252 (12) | 0.0163 (11) | 0.0075 (13) | 0.0031 (11) | 0.0012 (9) |
C4 | 0.0294 (14) | 0.0300 (12) | 0.0241 (13) | 0.0047 (11) | 0.0033 (11) | −0.0032 (11) |
C5 | 0.0340 (18) | 0.0252 (12) | 0.0206 (12) | 0.0064 (13) | −0.0037 (12) | −0.0014 (10) |
C6 | 0.0324 (14) | 0.0178 (10) | 0.0230 (11) | −0.0012 (12) | 0.0007 (13) | −0.0038 (9) |
C7 | 0.052 (2) | 0.0167 (14) | 0.0273 (16) | 0.0025 (17) | 0.005 (2) | −0.0016 (11) |
C8 | 0.030 (3) | 0.019 (2) | 0.029 (3) | −0.0045 (17) | 0.0014 (19) | 0.0020 (18) |
C9 | 0.027 (3) | 0.0321 (19) | 0.041 (4) | −0.0015 (19) | 0.0047 (19) | 0.011 (2) |
C10 | 0.044 (3) | 0.038 (2) | 0.068 (6) | 0.0098 (17) | 0.011 (3) | 0.008 (3) |
S1A | 0.050 (2) | 0.0273 (7) | 0.0214 (7) | 0.0055 (15) | 0.0021 (18) | 0.0007 (6) |
S2A | 0.054 (2) | 0.042 (2) | 0.0236 (17) | −0.0138 (14) | −0.0082 (9) | −0.0056 (12) |
O2A | 0.063 (3) | 0.037 (2) | 0.052 (3) | 0.0047 (17) | 0.016 (2) | 0.019 (2) |
O3A | 0.042 (2) | 0.085 (3) | 0.053 (3) | −0.029 (2) | 0.008 (2) | 0.006 (2) |
N1A | 0.028 (4) | 0.038 (3) | 0.027 (3) | 0.007 (3) | −0.006 (2) | −0.002 (2) |
N2A | 0.035 (4) | 0.036 (3) | 0.025 (3) | −0.005 (4) | −0.004 (3) | 0.001 (2) |
N3A | 0.032 (2) | 0.035 (3) | 0.031 (3) | −0.0079 (18) | 0.0141 (19) | −0.0017 (19) |
C1A | 0.031 (2) | 0.0239 (18) | 0.0215 (19) | −0.0072 (17) | 0.0047 (17) | −0.0059 (14) |
C2A | 0.0142 (18) | 0.0248 (19) | 0.0199 (17) | 0.0023 (16) | 0.0023 (14) | −0.0001 (13) |
C3A | 0.0221 (19) | 0.0241 (18) | 0.023 (2) | 0.0049 (16) | 0.0023 (16) | −0.0002 (15) |
C4A | 0.022 (2) | 0.031 (2) | 0.034 (3) | 0.0036 (17) | −0.0040 (18) | −0.0013 (18) |
C5A | 0.039 (3) | 0.025 (2) | 0.032 (3) | 0.010 (2) | −0.005 (2) | 0.0006 (18) |
C6A | 0.034 (3) | 0.0163 (17) | 0.021 (2) | −0.003 (2) | 0.005 (2) | −0.0015 (14) |
C7A | 0.070 (5) | 0.020 (2) | 0.024 (2) | 0.014 (4) | 0.015 (4) | −0.0003 (17) |
C8A | 0.039 (6) | 0.015 (3) | 0.012 (2) | −0.004 (3) | 0.002 (4) | 0.000 (2) |
C9A | 0.030 (5) | 0.028 (4) | 0.030 (5) | −0.008 (4) | 0.003 (3) | 0.010 (3) |
C10A | 0.030 (4) | 0.046 (6) | 0.053 (6) | −0.010 (4) | 0.000 (4) | 0.009 (4) |
C11 | 0.0323 (13) | 0.062 (2) | 0.0372 (16) | −0.0044 (12) | 0.0038 (11) | 0.0024 (14) |
C11A | 0.0303 (18) | 0.052 (3) | 0.025 (2) | 0.0046 (17) | −0.0020 (16) | 0.0000 (18) |
S1—C8 | 1.756 (7) | S2A—C8A | 1.791 (17) |
S1—C7 | 1.791 (8) | O2A—N3A | 1.213 (9) |
S2—C8 | 1.678 (12) | O3A—N3A | 1.211 (7) |
S2—C9 | 1.790 (12) | N1A—C9A | 1.291 (16) |
O2—N3 | 1.233 (4) | N1A—N2A | 1.376 (11) |
O3—N3 | 1.229 (5) | N2A—C8A | 1.30 (2) |
N1—C9 | 1.293 (11) | N3A—C3A | 1.485 (7) |
N1—N2 | 1.407 (7) | C1A—C6A | 1.368 (8) |
N2—C8 | 1.306 (14) | C1A—C2A | 1.407 (6) |
N3—C3 | 1.474 (4) | C1A—H1B | 0.9300 |
C1—C6 | 1.390 (5) | C2A—C3A | 1.391 (7) |
C1—C2 | 1.396 (4) | C2A—C11A | 1.498 (7) |
C1—H1A | 0.9300 | C3A—C4A | 1.369 (7) |
C2—C3 | 1.374 (6) | C4A—C5A | 1.389 (8) |
C2—H2A | 0.9300 | C4A—H4B | 0.9300 |
C3—C4 | 1.397 (5) | C5A—C6A | 1.391 (8) |
C4—C5 | 1.410 (4) | C5A—H5B | 0.9300 |
C4—C11 | 1.504 (5) | C6A—C7A | 1.546 (11) |
C5—C6 | 1.385 (4) | C7A—H7C | 0.9700 |
C5—H5A | 0.9300 | C7A—H7D | 0.9700 |
C6—C7 | 1.495 (7) | C9A—C10A | 1.48 (2) |
C7—H7A | 0.9700 | C10A—H10D | 0.9600 |
C7—H7B | 0.9700 | C10A—H10E | 0.9600 |
C9—C10 | 1.476 (13) | C10A—H10F | 0.9600 |
C10—H10A | 0.9600 | C11—H11A | 0.9600 |
C10—H10B | 0.9600 | C11—H11B | 0.9600 |
C10—H10C | 0.9600 | C11—H11C | 0.9600 |
S1A—C8A | 1.742 (12) | C11A—H11D | 0.9600 |
S1A—C7A | 1.822 (13) | C11A—H11E | 0.9600 |
S2A—C9A | 1.63 (2) | C11A—H11F | 0.9600 |
C8—S1—C7 | 101.3 (5) | O2A—N3A—C3A | 119.3 (5) |
C8—S2—C9 | 86.1 (5) | C6A—C1A—C2A | 122.5 (5) |
C9—N1—N2 | 112.4 (7) | C6A—C1A—H1B | 118.7 |
C8—N2—N1 | 111.0 (6) | C2A—C1A—H1B | 118.7 |
O3—N3—O2 | 123.3 (3) | C3A—C2A—C1A | 115.0 (4) |
O3—N3—C3 | 119.2 (3) | C3A—C2A—C11A | 126.8 (4) |
O2—N3—C3 | 117.5 (3) | C1A—C2A—C11A | 118.2 (5) |
C6—C1—C2 | 120.1 (3) | C4A—C3A—C2A | 124.3 (4) |
C6—C1—H1A | 120.0 | C4A—C3A—N3A | 115.4 (5) |
C2—C1—H1A | 120.0 | C2A—C3A—N3A | 120.3 (5) |
C3—C2—C1 | 119.6 (3) | C3A—C4A—C5A | 118.7 (5) |
C3—C2—H2A | 120.2 | C3A—C4A—H4B | 120.7 |
C1—C2—H2A | 120.2 | C5A—C4A—H4B | 120.7 |
C2—C3—C4 | 123.0 (3) | C4A—C5A—C6A | 119.6 (5) |
C2—C3—N3 | 116.0 (3) | C4A—C5A—H5B | 120.2 |
C4—C3—N3 | 121.0 (4) | C6A—C5A—H5B | 120.2 |
C3—C4—C5 | 115.5 (3) | C1A—C6A—C5A | 119.9 (5) |
C3—C4—C11 | 126.8 (3) | C1A—C6A—C7A | 120.8 (7) |
C5—C4—C11 | 117.7 (3) | C5A—C6A—C7A | 119.2 (7) |
C6—C5—C4 | 123.1 (3) | C6A—C7A—S1A | 112.6 (7) |
C6—C5—H5A | 118.5 | C6A—C7A—H7C | 109.1 |
C4—C5—H5A | 118.5 | S1A—C7A—H7C | 109.1 |
C5—C6—C1 | 118.8 (3) | C6A—C7A—H7D | 109.1 |
C5—C6—C7 | 120.0 (3) | S1A—C7A—H7D | 109.1 |
C1—C6—C7 | 121.2 (3) | H7C—C7A—H7D | 107.8 |
C6—C7—S1 | 115.7 (4) | N2A—C8A—S1A | 126.9 (11) |
C6—C7—H7A | 108.3 | N2A—C8A—S2A | 110.2 (9) |
S1—C7—H7A | 108.3 | S1A—C8A—S2A | 122.8 (10) |
C6—C7—H7B | 108.3 | N1A—C9A—C10A | 124.2 (16) |
S1—C7—H7B | 108.3 | N1A—C9A—S2A | 115.5 (11) |
H7A—C7—H7B | 107.4 | C10A—C9A—S2A | 120.1 (12) |
N2—C8—S2 | 117.3 (5) | C9A—C10A—H10D | 109.5 |
N2—C8—S1 | 124.9 (8) | C9A—C10A—H10E | 109.5 |
S2—C8—S1 | 117.7 (7) | H10D—C10A—H10E | 109.5 |
N1—C9—C10 | 123.1 (10) | C9A—C10A—H10F | 109.5 |
N1—C9—S2 | 113.1 (6) | H10D—C10A—H10F | 109.5 |
C10—C9—S2 | 123.8 (9) | H10E—C10A—H10F | 109.5 |
C8A—S1A—C7A | 101.0 (7) | C2A—C11A—H11D | 109.5 |
C9A—S2A—C8A | 88.2 (8) | C2A—C11A—H11E | 109.5 |
C9A—N1A—N2A | 113.3 (10) | H11D—C11A—H11E | 109.5 |
C8A—N2A—N1A | 112.5 (10) | C2A—C11A—H11F | 109.5 |
O3A—N3A—O2A | 122.3 (6) | H11D—C11A—H11F | 109.5 |
O3A—N3A—C3A | 118.4 (6) | H11E—C11A—H11F | 109.5 |
C9—N1—N2—C8 | 2.8 (11) | C9A—N1A—N2A—C8A | −6.5 (18) |
C6—C1—C2—C3 | 0.7 (4) | C6A—C1A—C2A—C3A | 0.6 (6) |
C1—C2—C3—C4 | −0.3 (4) | C6A—C1A—C2A—C11A | −178.0 (4) |
C1—C2—C3—N3 | 179.7 (2) | C1A—C2A—C3A—C4A | 0.5 (6) |
O3—N3—C3—C2 | −172.5 (3) | C11A—C2A—C3A—C4A | 178.9 (4) |
O2—N3—C3—C2 | 8.4 (4) | C1A—C2A—C3A—N3A | 178.3 (4) |
O3—N3—C3—C4 | 7.4 (4) | C11A—C2A—C3A—N3A | −3.3 (7) |
O2—N3—C3—C4 | −171.6 (3) | O3A—N3A—C3A—C4A | −12.1 (7) |
C2—C3—C4—C5 | −0.5 (4) | O2A—N3A—C3A—C4A | 168.7 (5) |
N3—C3—C4—C5 | 179.6 (2) | O3A—N3A—C3A—C2A | 169.9 (5) |
C2—C3—C4—C11 | −179.5 (3) | O2A—N3A—C3A—C2A | −9.3 (7) |
N3—C3—C4—C11 | 0.6 (4) | C2A—C3A—C4A—C5A | −1.2 (7) |
C3—C4—C5—C6 | 0.9 (4) | N3A—C3A—C4A—C5A | −179.1 (5) |
C11—C4—C5—C6 | −180.0 (3) | C3A—C4A—C5A—C6A | 0.8 (8) |
C4—C5—C6—C1 | −0.6 (5) | C2A—C1A—C6A—C5A | −1.0 (7) |
C4—C5—C6—C7 | −179.9 (3) | C2A—C1A—C6A—C7A | 175.3 (5) |
C2—C1—C6—C5 | −0.3 (4) | C4A—C5A—C6A—C1A | 0.2 (8) |
C2—C1—C6—C7 | 179.1 (3) | C4A—C5A—C6A—C7A | −176.1 (6) |
C5—C6—C7—S1 | −63.8 (4) | C1A—C6A—C7A—S1A | 121.8 (6) |
C1—C6—C7—S1 | 116.9 (4) | C5A—C6A—C7A—S1A | −61.9 (7) |
C8—S1—C7—C6 | −79.8 (5) | C8A—S1A—C7A—C6A | −79.6 (9) |
N1—N2—C8—S2 | −1.9 (12) | N1A—N2A—C8A—S1A | −179.7 (12) |
N1—N2—C8—S1 | −179.9 (7) | N1A—N2A—C8A—S2A | 5.2 (17) |
C9—S2—C8—N2 | 0.4 (9) | C7A—S1A—C8A—N2A | 2.0 (18) |
C9—S2—C8—S1 | 178.6 (7) | C7A—S1A—C8A—S2A | 176.5 (10) |
C7—S1—C8—N2 | −0.7 (11) | C9A—S2A—C8A—N2A | −2.4 (14) |
C7—S1—C8—S2 | −178.7 (6) | C9A—S2A—C8A—S1A | −177.7 (12) |
N2—N1—C9—C10 | 179.0 (9) | N2A—N1A—C9A—C10A | 179.9 (13) |
N2—N1—C9—S2 | −2.5 (10) | N2A—N1A—C9A—S2A | 4.6 (16) |
C8—S2—C9—N1 | 1.3 (8) | C8A—S2A—C9A—N1A | −1.3 (13) |
C8—S2—C9—C10 | 179.7 (10) | C8A—S2A—C9A—C10A | −176.8 (14) |
Cg1, Cg2 and Cg3 are the centroids of the S2/C9/N1/N2/C8, C1–C6 and C1A–C6A rings, respectively |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10B···O2i | 0.96 | 2.58 | 3.534 (11) | 171 |
C7—H7B···Cg2ii | 0.97 | 2.65 | 3.417 (6) | 134 |
C7—H7B···Cg3ii | 0.97 | 2.65 | 3.489 (6) | 145 |
C7A—H7D···Cg2ii | 0.97 | 2.63 | 3.269 (10) | 124 |
C7A—H7D···Cg3ii | 0.97 | 2.50 | 3.258 (10) | 135 |
C10A—H10F···Cg1iii | 0.96 | 2.98 | 3.683 (18) | 132 |
Symmetry codes: (i) −x+1/2, y+1/2, z−1/2; (ii) x, y+1, z; (iii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C11H11N3O2S2 |
Mr | 281.37 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 100 |
a, b, c (Å) | 13.8210 (14), 4.5720 (5), 19.7929 (19) |
V (Å3) | 1250.7 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.42 |
Crystal size (mm) | 0.46 × 0.30 × 0.10 |
Data collection | |
Diffractometer | Bruker APEX DUO CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.831, 0.959 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10019, 3754, 3250 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.780 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.031, 0.091, 1.10 |
No. of reflections | 3754 |
No. of parameters | 330 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.45, −0.42 |
Absolute structure | Flack (1983), 1234 Friedel pairs |
Absolute structure parameter | 0.04 (6) |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Cg1, Cg2 and Cg3 are the centroids of the S2/C9/N1/N2/C8, C1–C6 and C1A–C6A rings, respectively |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10B···O2i | 0.96 | 2.58 | 3.534 (11) | 171 |
C7—H7B···Cg2ii | 0.97 | 2.65 | 3.417 (6) | 134 |
C7—H7B···Cg3ii | 0.97 | 2.65 | 3.489 (6) | 145 |
C7A—H7D···Cg2ii | 0.97 | 2.63 | 3.269 (10) | 124 |
C7A—H7D···Cg3ii | 0.97 | 2.50 | 3.258 (10) | 135 |
C10A—H10F···Cg1iii | 0.96 | 2.98 | 3.683 (18) | 132 |
Symmetry codes: (i) −x+1/2, y+1/2, z−1/2; (ii) x, y+1, z; (iii) x, y−1, z. |
Acknowledgements
AMI is thankful to the Director of the National Institute of Technology for providing research facilities and also thanks the Board for Research in Nuclear Sciences, Department of Atomic Energy, Government of India, for the Young Scientist award. SC thanks the Prince of Songkla University for generous support through the Crystal Materials Research Unit. The authors also thank Universiti Sains Malaysia for the Research University grant No. 1001/PFIZIK/811160.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CSD CrossRef Web of Science Google Scholar
Bernard, A. M., Cocco, M. T., Maccioni, A. & Plumitallo, A. (1985). Farmaco, 40, 259–271. CAS Google Scholar
Bruker (2009). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Chandrakantha, B., Shetty, P., Nambiyar, V., Isloor, N. & Isloor, A. M. (2010). Eur. J. Med. Chem. 45, 1206–1210. Web of Science CrossRef CAS PubMed Google Scholar
Cosier, J. & Glazer, A. M. (1986). J. Appl. Cryst. 19, 105–107. CrossRef CAS Web of Science IUCr Journals Google Scholar
Flack, H. D. (1983). Acta Cryst. A39, 876–881. CrossRef CAS Web of Science IUCr Journals Google Scholar
Fun, H.-K., Chantrapromma, S., Chandrakantha, B., Isloor, A. M. & Shetty, P. (2011). Acta Cryst. E67, o163. Web of Science CrossRef IUCr Journals Google Scholar
Isloor, A. M., Kalluraya, B. & Pai, K. S. (2010). Eur. J. Med. Chem. 45, 825–830. Web of Science CrossRef PubMed CAS Google Scholar
Kalluraya, B., Jagadeesha, R. L. & Isloor, A. M. (2004). Indian J. Het. Chem. 13, 245–248. CAS Google Scholar
Oruç, E. E., Rollas, S., Kandemirli, F., Shvets, N. & Dimoglo, A. S. (2004). J. Med. Chem. 47, 6760–6767. Web of Science PubMed Google Scholar
Salimon, J., Salih, N., Hameed, A., Ibraheem, H. & Yousif, E. (2010). J. Appl. Sci. Res. 6, 866–870. CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wang, H., Gao, Y. & Wang, W. (2010). Acta Cryst. E66, o3085. Web of Science CSD CrossRef IUCr Journals Google Scholar
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.
Many classes of thiadiazole compounds have been intensely investigated with a number of them having found to be biologically and pharmacologically active. The 1,3,4-thiadiazole derivatives exhibit a wide spectrum of pharmacological and biological properties such as antituberculosis, anti-inflammatory, antifungal and antibacterial activities (Bernard et al., 1985; Chandrakantha et al., 2010; Isloor et al., 2010; Kalluraya et al., 2004; Oruç et al., 2004; Salimon et al., 2010). The title 1,3,4-thiadiazole derivative, (I), was synthesized in order to study its biological activity. Herein we report the crystal structure of (I).
The whole molecule of (I), C11H11N3O2S2, is disordered over two sites with the major component and minor A components having refined site-occupancy ratio of 0.629 (3)/0.371 (3) and has a butterfly-like structure with a torsion angle C8–S1–C7–C6 = -79.8 (5)° in major component [-79.6 (9)° in minor A component]. The molecule is disordered in such a way that the 3-methyl-4-nitrophenyl unit in the major and minor components is related by 180° rotation. The dihedral angle between the 1,3,4-thiadiazole and benzene rings is 70.8 (4)° in the major component [74.9 (6)° in the minor A component]. In both components the nitro group is slightly twisted with respect to the attached benzene ring with the torsion angles O2–N3–C3–C2 = 8.4 (4)° and O3–N3–C3–C2 = -172.5 (3)° in the major component [the corresponding values are -12.1 (7) and 168.7 (5)° in the minor A component]. The bond distances are of normal values (Allen et al., 1987) and are comparable with the related structures (Fun et al., 2011; Wang et al., 2010).
In the crystal packing (Fig. 2), the molecules are arranged into screw chains along the c axis. These chains are stacked along the b axis. The crystal is stabilized by C—H···O and C—H···π weak interactions (Table 1). A short C···O contact [3.005 (7) Å; symmetry code: 1/2 + x, -1/2 - y, z] is observed.