organic compounds
3-{[5-(4-Chlorophenyl)-3-methyl-1H-pyrazol-1-yl]methyl}-4-m-tolyl-1H-1,2,4-triazole-5(4H)-thione
aDepartment of Chemistry, Government College University, Lahore 54000, Pakistan, bChemistry and Environmental Division, Manchester Metropolitan University, Manchester, M1 5GD, England, cChemistry Department, Faculty of Science, Minia University, El-Minia, Egypt, dPharmaceutical Chemistry Department, Faculty of Pharmacy, Al Azhar University, Egypt, and eFaculty of Pharmacy, Pharmaceutical Chemistry Department, Cairo University, Cairo, Egypt
*Correspondence e-mail: maqsood.ahmed@gcu.edu.pk
In the title compound, C20H18ClN5S, the toluene and triazole rings are oriented almost perpendicular to each other, making a dihedral angle of 89.97 (9)°, whereas the dihedral angle between cholorophenyl and pyrazole rings is 54.57 (11)°. In the crystal, pairs of N—H⋯N hydrogen bonds link the molecules into inversion dimers. Weaker C—H⋯S and C—H⋯Cl interactions are also present.
Related literature
For medicinal applications of 1, 2, 4-triazoles, see: Lipinski (1983); Ram & Vlietinck (1988); Akahoshi et al. (1998); Young et al. (2001); Ouyang et al. (2005); Dolzhenko et al. (2007). For general background to the coordination chemistry of triazoles, see: Mishra et al. (1989); Klingele & Brooker (2003); Beckmann & Brooker (2003); Ferrer et al. (2004); Castineiras & Garcia-Santos (2008).
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: SIR92 (Altomare et al., 1993); 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: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536813013494/gw2132sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813013494/gw2132Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813013494/gw2132Isup3.cml
A solution of 2 N sodium hydroxide solution (2 ml) was added in dropwise to a solution of 5 mmol (2.07 g) 2-{[5-(4-chlorophenyl)-3-methyl-1H-pyrazol-1-yl]acetyl}-N-(3-methylphenyl)hydrazinecarbothioamide in 50 ml e thanol. The reaction mixture was then refluxed for 7 h, cooled and filtered. The filtrate was acidified with 2 N hydrochloric acid. The separated solid was collected, washed, and crystallized from ethanol in an excellent yield (92%). Single crystals suitable for X-ray diffraction were obtained from slow evaporation solution of the title compound in ethanol at room temperature (M.p. 433–435 K).
The methyl group H atoms were geometrically placed at idealized positions and refined using a riding model with d(C—H) = 0.96 Å and Uiso= 1.5Ueq(C). The H atom on N atom was located in the difference map and was refined isotropically. All other H atoms bound to C were located in the difference map but were refined using a riding model with d(C—H) = 0.93 Å for aromatic and 0.97 Å for CH2 group with Uiso(H) = 1.2Ueq(C).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SIR92 (Altomare et al., 1993); 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: publCIF (Westrip, 2010).Fig. 1. An ORTEPIII diagram of the molecule showing atom numbering scheme and thermal ellipsoids drawn at 30% probability level. | |
Fig. 2. A view of the molecular packing along b axis. | |
Fig. 3. A dimer of molecules formed by the intermolecular N—H···N type hydrogen bonds. The H atoms not involved in any interaction have been omitted for the reason of clarity. [Symmetry code: (i) 2-x, 1-y, 1-z.] | |
Fig. 4. A view of the molecular packing showing weak intermolecular C—H···π and C—H···S interactions. [Symmetry codes: (i) 1-x, -y, 1-z; (ii) 1/2;+x, 1/2-y, 1/2+z.] |
C20H18ClN5S | F(000) = 824 |
Mr = 395.90 | Dx = 1.322 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 143 reflections |
a = 8.328 (5) Å | θ = 1.9–26.5° |
b = 16.407 (5) Å | µ = 0.31 mm−1 |
c = 14.759 (5) Å | T = 296 K |
β = 99.509 (5)° | Block, colourless |
V = 1988.9 (15) Å3 | 0.61 × 0.53 × 0.52 mm |
Z = 4 |
Bruker APEXII CCD detector diffractometer | 3914 independent reflections |
Radiation source: fine-focus sealed tube | 3207 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.031 |
ω and ϕ scans | θmax = 26.0°, θmin = 1.9° |
Absorption correction: analytical {SADABS; Bruker, 2009) | h = −10→10 |
Tmin = 0.833, Tmax = 0.855 | k = −20→20 |
38237 measured reflections | l = −18→18 |
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)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.112 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0474P)2 + 0.8662P] where P = (Fo2 + 2Fc2)/3 |
3914 reflections | (Δ/σ)max = 0.008 |
250 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C20H18ClN5S | V = 1988.9 (15) Å3 |
Mr = 395.90 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.328 (5) Å | µ = 0.31 mm−1 |
b = 16.407 (5) Å | T = 296 K |
c = 14.759 (5) Å | 0.61 × 0.53 × 0.52 mm |
β = 99.509 (5)° |
Bruker APEXII CCD detector diffractometer | 3914 independent reflections |
Absorption correction: analytical {SADABS; Bruker, 2009) | 3207 reflections with I > 2σ(I) |
Tmin = 0.833, Tmax = 0.855 | Rint = 0.031 |
38237 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 0 restraints |
wR(F2) = 0.112 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.23 e Å−3 |
3914 reflections | Δρmin = −0.26 e Å−3 |
250 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 | ||
S1 | 0.89331 (8) | 0.45028 (4) | 0.23277 (4) | 0.0738 (2) | |
Cl1 | 0.87201 (11) | −0.10903 (4) | 0.56431 (6) | 0.1018 (3) | |
N2 | 0.83576 (17) | 0.30784 (8) | 0.58288 (10) | 0.0420 (3) | |
N3 | 0.91296 (16) | 0.36199 (8) | 0.39136 (10) | 0.0402 (3) | |
N1 | 0.76919 (18) | 0.38104 (9) | 0.59822 (10) | 0.0460 (3) | |
N4 | 1.08074 (19) | 0.46017 (9) | 0.40066 (11) | 0.0474 (4) | |
N5 | 1.10761 (18) | 0.42403 (9) | 0.48545 (11) | 0.0468 (4) | |
C12 | 1.00462 (19) | 0.36448 (10) | 0.47753 (11) | 0.0396 (4) | |
C14 | 0.78212 (19) | 0.30653 (10) | 0.35998 (11) | 0.0388 (4) | |
C15 | 0.6269 (2) | 0.32639 (10) | 0.37306 (12) | 0.0438 (4) | |
H19 | 0.6080 | 0.3758 | 0.4003 | 0.053* | |
C4 | 0.7762 (2) | 0.15886 (10) | 0.58340 (12) | 0.0453 (4) | |
C13 | 0.9620 (2) | 0.42534 (10) | 0.34117 (13) | 0.0457 (4) | |
C11 | 0.9930 (2) | 0.30522 (11) | 0.55227 (12) | 0.0457 (4) | |
H11A | 1.0112 | 0.2507 | 0.5307 | 0.055* | |
H11B | 1.0780 | 0.3168 | 0.6040 | 0.055* | |
C20 | 0.8140 (2) | 0.23434 (11) | 0.31944 (13) | 0.0492 (4) | |
H14 | 0.9187 | 0.2219 | 0.3097 | 0.059* | |
C9 | 0.6232 (2) | 0.36378 (11) | 0.61886 (13) | 0.0506 (4) | |
C16 | 0.4988 (2) | 0.27320 (12) | 0.34583 (13) | 0.0491 (4) | |
C18 | 0.5317 (2) | 0.20020 (12) | 0.30670 (13) | 0.0548 (5) | |
H16 | 0.4474 | 0.1634 | 0.2889 | 0.066* | |
C7 | 0.7349 (2) | 0.24523 (10) | 0.59382 (12) | 0.0445 (4) | |
C6 | 0.9473 (3) | 0.04243 (13) | 0.62598 (15) | 0.0643 (6) | |
H6 | 1.0406 | 0.0195 | 0.6597 | 0.077* | |
C8 | 0.5974 (2) | 0.27957 (11) | 0.61661 (14) | 0.0529 (5) | |
H8 | 0.5050 | 0.2523 | 0.6283 | 0.063* | |
C5 | 0.9165 (3) | 0.12459 (12) | 0.63229 (13) | 0.0564 (5) | |
H5 | 0.9907 | 0.1574 | 0.6698 | 0.068* | |
C19 | 0.6871 (3) | 0.18060 (12) | 0.29343 (14) | 0.0574 (5) | |
H15 | 0.7066 | 0.1310 | 0.2668 | 0.069* | |
C3 | 0.6710 (2) | 0.10971 (11) | 0.52508 (14) | 0.0551 (5) | |
H3 | 0.5775 | 0.1321 | 0.4910 | 0.066* | |
C2 | 0.7034 (3) | 0.02772 (12) | 0.51691 (16) | 0.0640 (6) | |
H2 | 0.6342 | −0.0049 | 0.4763 | 0.077* | |
C1 | 0.8389 (3) | −0.00466 (12) | 0.56953 (16) | 0.0605 (5) | |
C17 | 0.3290 (3) | 0.29548 (17) | 0.3590 (2) | 0.0794 (7) | |
H17A | 0.2554 | 0.2525 | 0.3357 | 0.119* | |
H17B | 0.2966 | 0.3450 | 0.3264 | 0.119* | |
H17C | 0.3266 | 0.3032 | 0.4232 | 0.119* | |
C10 | 0.5133 (3) | 0.43051 (14) | 0.64055 (19) | 0.0749 (7) | |
H10A | 0.5713 | 0.4813 | 0.6453 | 0.112* | |
H10B | 0.4776 | 0.4189 | 0.6978 | 0.112* | |
H10C | 0.4206 | 0.4341 | 0.5925 | 0.112* | |
HN4 | 1.130 (2) | 0.5065 (14) | 0.3917 (14) | 0.056 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0868 (4) | 0.0712 (4) | 0.0609 (3) | −0.0027 (3) | 0.0045 (3) | 0.0243 (3) |
Cl1 | 0.1391 (7) | 0.0416 (3) | 0.1352 (7) | 0.0167 (3) | 0.0533 (5) | 0.0124 (3) |
N2 | 0.0469 (8) | 0.0364 (7) | 0.0430 (8) | −0.0039 (6) | 0.0086 (6) | −0.0001 (6) |
N3 | 0.0405 (7) | 0.0361 (7) | 0.0437 (7) | −0.0015 (6) | 0.0060 (6) | 0.0015 (6) |
N1 | 0.0528 (9) | 0.0380 (7) | 0.0480 (8) | −0.0046 (6) | 0.0106 (7) | −0.0024 (6) |
N4 | 0.0500 (8) | 0.0369 (8) | 0.0580 (9) | −0.0073 (7) | 0.0169 (7) | −0.0003 (7) |
N5 | 0.0456 (8) | 0.0439 (8) | 0.0518 (9) | −0.0070 (6) | 0.0110 (7) | −0.0043 (7) |
C12 | 0.0371 (8) | 0.0379 (8) | 0.0443 (9) | 0.0000 (7) | 0.0081 (7) | −0.0030 (7) |
C14 | 0.0411 (8) | 0.0350 (8) | 0.0391 (8) | −0.0011 (6) | 0.0033 (6) | 0.0012 (6) |
C15 | 0.0457 (9) | 0.0398 (9) | 0.0463 (9) | 0.0016 (7) | 0.0083 (7) | −0.0041 (7) |
C4 | 0.0549 (10) | 0.0377 (9) | 0.0444 (9) | −0.0048 (8) | 0.0117 (8) | 0.0039 (7) |
C13 | 0.0480 (9) | 0.0367 (8) | 0.0545 (10) | 0.0030 (7) | 0.0147 (8) | 0.0030 (7) |
C11 | 0.0425 (9) | 0.0477 (10) | 0.0461 (10) | −0.0012 (7) | 0.0050 (7) | 0.0030 (7) |
C20 | 0.0498 (10) | 0.0450 (10) | 0.0523 (10) | 0.0062 (8) | 0.0071 (8) | −0.0048 (8) |
C9 | 0.0540 (10) | 0.0464 (10) | 0.0536 (11) | −0.0045 (8) | 0.0151 (8) | −0.0054 (8) |
C16 | 0.0445 (9) | 0.0555 (11) | 0.0470 (10) | −0.0047 (8) | 0.0067 (8) | 0.0019 (8) |
C18 | 0.0605 (11) | 0.0508 (11) | 0.0496 (10) | −0.0170 (9) | −0.0005 (9) | −0.0017 (8) |
C7 | 0.0523 (10) | 0.0402 (9) | 0.0409 (9) | −0.0078 (8) | 0.0078 (7) | 0.0016 (7) |
C6 | 0.0717 (13) | 0.0574 (12) | 0.0630 (13) | 0.0118 (11) | 0.0093 (11) | 0.0171 (10) |
C8 | 0.0533 (10) | 0.0478 (10) | 0.0609 (11) | −0.0107 (8) | 0.0192 (9) | −0.0012 (9) |
C5 | 0.0649 (12) | 0.0531 (11) | 0.0485 (10) | −0.0038 (9) | 0.0014 (9) | 0.0046 (9) |
C19 | 0.0731 (13) | 0.0392 (9) | 0.0575 (11) | −0.0003 (9) | 0.0036 (10) | −0.0106 (8) |
C3 | 0.0544 (11) | 0.0431 (10) | 0.0653 (12) | −0.0049 (8) | 0.0026 (9) | 0.0015 (9) |
C2 | 0.0693 (13) | 0.0439 (11) | 0.0789 (15) | −0.0115 (10) | 0.0124 (11) | −0.0084 (10) |
C1 | 0.0747 (14) | 0.0390 (10) | 0.0729 (14) | 0.0043 (9) | 0.0268 (11) | 0.0095 (9) |
C17 | 0.0482 (12) | 0.0956 (18) | 0.0968 (18) | −0.0064 (12) | 0.0191 (12) | −0.0075 (15) |
C10 | 0.0723 (14) | 0.0598 (13) | 0.0986 (19) | 0.0036 (11) | 0.0323 (13) | −0.0114 (12) |
S1—C13 | 1.659 (2) | C20—H14 | 0.9300 |
Cl1—C1 | 1.738 (2) | C9—C8 | 1.398 (3) |
N2—C7 | 1.353 (2) | C9—C10 | 1.495 (3) |
N2—N1 | 1.357 (2) | C16—C18 | 1.377 (3) |
N2—C11 | 1.455 (2) | C16—C17 | 1.504 (3) |
N3—C12 | 1.372 (2) | C18—C19 | 1.379 (3) |
N3—C13 | 1.377 (2) | C18—H16 | 0.9300 |
N3—C14 | 1.436 (2) | C7—C8 | 1.367 (3) |
N1—C9 | 1.332 (2) | C6—C1 | 1.363 (3) |
N4—C13 | 1.337 (2) | C6—C5 | 1.378 (3) |
N4—N5 | 1.369 (2) | C6—H6 | 0.9300 |
N4—HN4 | 0.89 (2) | C8—H8 | 0.9300 |
N5—C12 | 1.293 (2) | C5—H5 | 0.9300 |
C12—C11 | 1.486 (2) | C19—H15 | 0.9300 |
C14—C20 | 1.373 (2) | C3—C2 | 1.381 (3) |
C14—C15 | 1.377 (2) | C3—H3 | 0.9300 |
C15—C16 | 1.385 (2) | C2—C1 | 1.367 (3) |
C15—H19 | 0.9300 | C2—H2 | 0.9300 |
C4—C3 | 1.382 (3) | C17—H17A | 0.9600 |
C4—C5 | 1.387 (3) | C17—H17B | 0.9600 |
C4—C7 | 1.472 (2) | C17—H17C | 0.9600 |
C11—H11A | 0.9700 | C10—H10A | 0.9600 |
C11—H11B | 0.9700 | C10—H10B | 0.9600 |
C20—C19 | 1.381 (3) | C10—H10C | 0.9600 |
C7—N2—N1 | 111.89 (14) | C15—C16—C17 | 120.32 (19) |
C7—N2—C11 | 128.53 (15) | C16—C18—C19 | 121.26 (17) |
N1—N2—C11 | 119.43 (13) | C16—C18—H16 | 119.4 |
C12—N3—C13 | 107.90 (14) | C19—C18—H16 | 119.4 |
C12—N3—C14 | 126.46 (14) | N2—C7—C8 | 106.16 (16) |
C13—N3—C14 | 125.54 (14) | N2—C7—C4 | 123.88 (16) |
C9—N1—N2 | 105.27 (14) | C8—C7—C4 | 129.96 (16) |
C13—N4—N5 | 113.98 (15) | C1—C6—C5 | 118.9 (2) |
C13—N4—HN4 | 125.5 (13) | C1—C6—H6 | 120.5 |
N5—N4—HN4 | 119.9 (13) | C5—C6—H6 | 120.5 |
C12—N5—N4 | 103.82 (14) | C7—C8—C9 | 106.34 (16) |
N5—C12—N3 | 111.46 (15) | C7—C8—H8 | 126.8 |
N5—C12—C11 | 123.46 (16) | C9—C8—H8 | 126.8 |
N3—C12—C11 | 125.05 (15) | C6—C5—C4 | 120.8 (2) |
C20—C14—C15 | 121.24 (16) | C6—C5—H5 | 119.6 |
C20—C14—N3 | 119.76 (15) | C4—C5—H5 | 119.6 |
C15—C14—N3 | 118.99 (15) | C18—C19—C20 | 120.32 (18) |
C14—C15—C16 | 120.39 (16) | C18—C19—H15 | 119.8 |
C14—C15—H19 | 119.8 | C20—C19—H15 | 119.8 |
C16—C15—H19 | 119.8 | C4—C3—C2 | 120.66 (19) |
C3—C4—C5 | 118.72 (18) | C4—C3—H3 | 119.7 |
C3—C4—C7 | 119.44 (17) | C2—C3—H3 | 119.7 |
C5—C4—C7 | 121.82 (17) | C1—C2—C3 | 118.9 (2) |
N4—C13—N3 | 102.84 (15) | C1—C2—H2 | 120.5 |
N4—C13—S1 | 128.86 (14) | C3—C2—H2 | 120.5 |
N3—C13—S1 | 128.28 (14) | C6—C1—C2 | 121.89 (19) |
N2—C11—C12 | 112.56 (14) | C6—C1—Cl1 | 119.44 (18) |
N2—C11—H11A | 109.1 | C2—C1—Cl1 | 118.67 (18) |
C12—C11—H11A | 109.1 | C16—C17—H17A | 109.5 |
N2—C11—H11B | 109.1 | C16—C17—H17B | 109.5 |
C12—C11—H11B | 109.1 | H17A—C17—H17B | 109.5 |
H11A—C11—H11B | 107.8 | C16—C17—H17C | 109.5 |
C14—C20—C19 | 118.55 (17) | H17A—C17—H17C | 109.5 |
C14—C20—H14 | 120.7 | H17B—C17—H17C | 109.5 |
C19—C20—H14 | 120.7 | C9—C10—H10A | 109.5 |
N1—C9—C8 | 110.33 (17) | C9—C10—H10B | 109.5 |
N1—C9—C10 | 120.48 (18) | H10A—C10—H10B | 109.5 |
C8—C9—C10 | 129.19 (19) | C9—C10—H10C | 109.5 |
C18—C16—C15 | 118.22 (17) | H10A—C10—H10C | 109.5 |
C18—C16—C17 | 121.46 (18) | H10B—C10—H10C | 109.5 |
C7—N2—N1—C9 | −0.24 (19) | C14—C15—C16—C18 | 0.8 (3) |
C11—N2—N1—C9 | 175.82 (15) | C14—C15—C16—C17 | −179.16 (19) |
C13—N4—N5—C12 | 1.10 (19) | C15—C16—C18—C19 | −1.0 (3) |
N4—N5—C12—N3 | −0.47 (18) | C17—C16—C18—C19 | 178.9 (2) |
N4—N5—C12—C11 | 177.59 (15) | N1—N2—C7—C8 | 0.4 (2) |
C13—N3—C12—N5 | −0.25 (19) | C11—N2—C7—C8 | −175.26 (16) |
C14—N3—C12—N5 | −176.79 (15) | N1—N2—C7—C4 | −178.73 (15) |
C13—N3—C12—C11 | −178.27 (15) | C11—N2—C7—C4 | 5.7 (3) |
C14—N3—C12—C11 | 5.2 (3) | C3—C4—C7—N2 | −127.2 (2) |
C12—N3—C14—C20 | −91.4 (2) | C5—C4—C7—N2 | 54.4 (3) |
C13—N3—C14—C20 | 92.6 (2) | C3—C4—C7—C8 | 54.0 (3) |
C12—N3—C14—C15 | 87.3 (2) | C5—C4—C7—C8 | −124.4 (2) |
C13—N3—C14—C15 | −88.7 (2) | N2—C7—C8—C9 | −0.3 (2) |
C20—C14—C15—C16 | 0.4 (3) | C4—C7—C8—C9 | 178.69 (18) |
N3—C14—C15—C16 | −178.24 (16) | N1—C9—C8—C7 | 0.2 (2) |
N5—N4—C13—N3 | −1.22 (19) | C10—C9—C8—C7 | −179.6 (2) |
N5—N4—C13—S1 | −179.74 (13) | C1—C6—C5—C4 | 1.1 (3) |
C12—N3—C13—N4 | 0.86 (17) | C3—C4—C5—C6 | −2.7 (3) |
C14—N3—C13—N4 | 177.44 (14) | C7—C4—C5—C6 | 175.69 (18) |
C12—N3—C13—S1 | 179.39 (14) | C16—C18—C19—C20 | 0.0 (3) |
C14—N3—C13—S1 | −4.0 (3) | C14—C20—C19—C18 | 1.1 (3) |
C7—N2—C11—C12 | 129.99 (18) | C5—C4—C3—C2 | 1.2 (3) |
N1—N2—C11—C12 | −45.3 (2) | C7—C4—C3—C2 | −177.28 (18) |
N5—C12—C11—N2 | 117.51 (18) | C4—C3—C2—C1 | 1.9 (3) |
N3—C12—C11—N2 | −64.7 (2) | C5—C6—C1—C2 | 2.1 (3) |
C15—C14—C20—C19 | −1.3 (3) | C5—C6—C1—Cl1 | −177.48 (16) |
N3—C14—C20—C19 | 177.29 (16) | C3—C2—C1—C6 | −3.6 (3) |
N2—N1—C9—C8 | 0.0 (2) | C3—C2—C1—Cl1 | 175.96 (17) |
N2—N1—C9—C10 | 179.80 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—HN4···N1i | 0.88 (2) | 2.02 (2) | 2.888 (2) | 166 (2) |
C5—H5···C16ii | 0.93 | 2.83 | 3.536 (3) | 134 |
C6—H6···S1ii | 0.93 | 3.00 | 3.790 (3) | 144 |
C2—H2···C2iii | 0.93 | 2.85 | 3.464 (4) | 124 |
C20—H14···Cl1iv | 0.93 | 2.98 | 3.537 (4) | 120 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x+1/2, −y+1/2, z+1/2; (iii) −x+1, −y, −z+1; (iv) −x+2, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C20H18ClN5S |
Mr | 395.90 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 296 |
a, b, c (Å) | 8.328 (5), 16.407 (5), 14.759 (5) |
β (°) | 99.509 (5) |
V (Å3) | 1988.9 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.31 |
Crystal size (mm) | 0.61 × 0.53 × 0.52 |
Data collection | |
Diffractometer | Bruker APEXII CCD detector diffractometer |
Absorption correction | Analytical {SADABS; Bruker, 2009) |
Tmin, Tmax | 0.833, 0.855 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 38237, 3914, 3207 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.112, 1.04 |
No. of reflections | 3914 |
No. of parameters | 250 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.26 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N4—HN4···N1i | 0.88 (2) | 2.02 (2) | 2.888 (2) | 166 (2) |
C6—H6···S1ii | 0.93 | 3.00 | 3.790 (3) | 144 |
C20—H14···Cl1iii | 0.93 | 2.98 | 3.537 (4) | 120 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x+1/2, −y+1/2, z+1/2; (iii) −x+2, −y, −z+1. |
Acknowledgements
GC University Lahore is gratefully acknowledged for the X-ray diffraction measurements. The authors are thankful to Manchester Metropolitan University and Alazhar University for supporting this study.
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.
1, 2, 4-Triazole compounds are used as reagents and ligands for the synthesis of biologically active compounds (Lipinski, 1983; Ram & Vlietinck, 1988; Akahoshi et al., 1998; Young et al., 2001; Ouyang et al., 2005; Dolzhenko et al., 2007) and metal complexes (Klingele & Brooker 2003; Beckmann & Brooker 2003; Mishra et al., 1989; Ferrer et al., 2004; Castineiras & Garcia-Santos, 2008). Further to our study on synthesis of bioactive heterocyclic compounds we herein report the synthesis and crystal structure of the title compound.
There is one molecule in the asymmetric unit and four molecules in the unit cell. 1, 2, 4 Triazole ring is oriented almost perpendicular to the toluene ring and the torsion angle between the two rings is 92.6 (2) ° as calculated on the basis of C13—N3—C14—C20 atoms. The diazole ring and the adjacent cholorobenzene ring adopt a twisted geometry and the torsion angle between them is -127.2 (2) ° as calculated using C3—C4—C7—N2 atoms. The molecular assembly is mainly built upon a reciprocal pair of intermolecular N4—H4···N1 type hydrogen bonds between two adjacent molecules which result in the formation of a molecular dimer. The D—H···A distance in each case is 2.02 Å. There are also some C—H···π interactions, a C—H···S interaction and a C—H···Cl interaction which help to stabilize the molecular assembly. The S1 atom accepts the H6 atom from C6 to form a C—H···S type weaker hydrogen bond at a distance of 2.998 Å with a D—H···A angle of 143.87°. Similarly the Cl1 atom accepts the H14 atom from C20 to form a C—H···Cl type weaker hydrogen bond at a distance of 2.978 Å with a D—H···A angle of 120.0°.