organic compounds
7-(4-Chlorobenzylidene)-3-[(4-chlorophenoxy)methyl]-6-(4-nitrothiophen-2-yl)-7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazine
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, and bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri, Mangalore 574 199, India
*Correspondence e-mail: hkfun@usm.my
In the title compound, C22H13Cl2N5O3S2, the thiadiazine ring adopts a half-chair conformation. The benzene rings of the chlorophenoxy and chlorobenzyl groups and the thiophene ring form dihedral angles of 35.6 (1), 80.7 (1) and 14.2 (1)°, respectively, with the triazole ring. In the crystal, molecules are connected into sheets parallel to (11) by intermolecular C—H⋯N and C—H⋯Cl hydrogen bonds. In addition, π–π stacking interactions are observed between thiophene and triazole rings, and between inversion-related triazole rings [centroid–centroid distances = 3.5975 (11) and 3.4324 (11) Å].
Related literature
For general background to and applications of 1,2,4-triazole derivatives, see: Shujuan et al. (2004); Clemons et al. (2004); Johnston (2002); Wei et al. (2007). For ring conformations and ring puckering analysis, see: Cremer & Pople (1975). For bond-length data, see: Allen et al. (1987); Jin et al. (2004). For related structures, see: Goh et al. (2010a,b,c,d).
Experimental
Crystal data
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Refinement
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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
10.1107/S1600536811015637/ci5185sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811015637/ci5185Isup2.hkl
To a soultion of 4-Amino-5-[(p-chlorophenoxy)methyl]-4H-1,2,4-triazole-3-thiol (0.01 mol) and 2-bromo-3-(p-chlorophenyl)-1-(5-nitrothiophen-2-yl) prop-2-en-1-one (0.01 mol) in ethanol, a catalytic amount of anhydrous sodium acetate was added. The solution was refluxed on a water bath for 9 h. The solid product that separated out was filtered and dried. It was then recrystallized from ethanol. Single crystals suitable for X-ray analysis were obtained from a 1:2 mixture of DMF and ethanol by slow evaporation.
H atoms were placed in calculated positions with C–H = 0.93–0.97 Å. The Uiso value of H atoms were constrained to be 1.2Ueq of the carrier atom.
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).C22H13Cl2N5O3S2 | Z = 2 |
Mr = 530.39 | F(000) = 540 |
Triclinic, P1 | Dx = 1.551 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.5021 (2) Å | Cell parameters from 5767 reflections |
b = 10.0379 (2) Å | θ = 2.7–32.0° |
c = 14.3623 (3) Å | µ = 0.51 mm−1 |
α = 94.434 (1)° | T = 296 K |
β = 97.981 (1)° | Plate, yellow |
γ = 109.242 (1)° | 0.39 × 0.32 × 0.11 mm |
V = 1136.07 (4) Å3 |
Bruker SMART APEXII CCD area-detector diffractometer | 6548 independent reflections |
Radiation source: fine-focus sealed tube | 5142 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.031 |
ϕ and ω scans | θmax = 30.0°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −11→11 |
Tmin = 0.827, Tmax = 0.946 | k = −14→14 |
19590 measured reflections | l = −20→20 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.133 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0647P)2 + 0.3979P] where P = (Fo2 + 2Fc2)/3 |
6548 reflections | (Δ/σ)max = 0.001 |
307 parameters | Δρmax = 0.59 e Å−3 |
0 restraints | Δρmin = −0.46 e Å−3 |
C22H13Cl2N5O3S2 | γ = 109.242 (1)° |
Mr = 530.39 | V = 1136.07 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.5021 (2) Å | Mo Kα radiation |
b = 10.0379 (2) Å | µ = 0.51 mm−1 |
c = 14.3623 (3) Å | T = 296 K |
α = 94.434 (1)° | 0.39 × 0.32 × 0.11 mm |
β = 97.981 (1)° |
Bruker SMART APEXII CCD area-detector diffractometer | 6548 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 5142 reflections with I > 2σ(I) |
Tmin = 0.827, Tmax = 0.946 | Rint = 0.031 |
19590 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.133 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.59 e Å−3 |
6548 reflections | Δρmin = −0.46 e Å−3 |
307 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | 0.31310 (6) | 0.39243 (5) | 0.13806 (3) | 0.03764 (12) | |
S2 | 0.65367 (7) | 0.90408 (5) | 0.02701 (4) | 0.04462 (14) | |
Cl1 | 0.32206 (12) | 1.05741 (9) | −0.46034 (7) | 0.0906 (3) | |
Cl2 | 0.17004 (8) | 0.36669 (8) | 0.58962 (4) | 0.06035 (17) | |
N1 | 0.0052 (2) | 0.34827 (18) | −0.09684 (11) | 0.0418 (4) | |
N2 | 0.0543 (2) | 0.29741 (17) | −0.01333 (11) | 0.0391 (3) | |
N3 | 0.23458 (18) | 0.51207 (16) | −0.01635 (10) | 0.0316 (3) | |
N4 | 0.37735 (19) | 0.63329 (16) | 0.00403 (10) | 0.0349 (3) | |
N5 | 1.0471 (2) | 0.9832 (2) | 0.22741 (17) | 0.0602 (5) | |
O1 | 0.25195 (18) | 0.62527 (17) | −0.20276 (10) | 0.0451 (3) | |
O2 | 1.1570 (3) | 1.0856 (3) | 0.2079 (2) | 0.0994 (8) | |
O3 | 1.0661 (3) | 0.9215 (3) | 0.29489 (15) | 0.0825 (6) | |
C1 | 0.1175 (3) | 0.7481 (2) | −0.31056 (13) | 0.0416 (4) | |
H1A | 0.0097 | 0.6926 | −0.3027 | 0.050* | |
C2 | 0.1376 (3) | 0.8504 (2) | −0.37127 (14) | 0.0455 (5) | |
H2A | 0.0436 | 0.8644 | −0.4045 | 0.055* | |
C3 | 0.2982 (3) | 0.9316 (2) | −0.38211 (16) | 0.0486 (5) | |
C4 | 0.4404 (3) | 0.9153 (3) | −0.33232 (18) | 0.0540 (5) | |
H4A | 0.5479 | 0.9717 | −0.3399 | 0.065* | |
C5 | 0.4199 (3) | 0.8139 (2) | −0.27120 (15) | 0.0464 (5) | |
H5A | 0.5145 | 0.8028 | −0.2364 | 0.056* | |
C6 | 0.2593 (2) | 0.7284 (2) | −0.26134 (12) | 0.0367 (4) | |
C7 | 0.0975 (3) | 0.5693 (2) | −0.16998 (14) | 0.0433 (4) | |
H7A | 0.0089 | 0.5158 | −0.2227 | 0.052* | |
H7B | 0.0664 | 0.6464 | −0.1426 | 0.052* | |
C8 | 0.1140 (2) | 0.4746 (2) | −0.09737 (12) | 0.0355 (4) | |
C9 | 0.1912 (2) | 0.39706 (18) | 0.03185 (12) | 0.0321 (3) | |
C10 | 0.4010 (2) | 0.57962 (18) | 0.16945 (12) | 0.0314 (3) | |
C11 | 0.4557 (2) | 0.66196 (18) | 0.09118 (12) | 0.0317 (3) | |
C12 | 0.6138 (2) | 0.78458 (19) | 0.10904 (12) | 0.0336 (3) | |
C13 | 0.7497 (2) | 0.8140 (2) | 0.17988 (13) | 0.0379 (4) | |
H13A | 0.7535 | 0.7623 | 0.2307 | 0.045* | |
C14 | 0.8840 (2) | 0.9339 (2) | 0.16526 (15) | 0.0416 (4) | |
C15 | 0.8518 (3) | 0.9942 (2) | 0.08699 (16) | 0.0456 (5) | |
H15A | 0.9278 | 1.0739 | 0.0687 | 0.055* | |
C16 | 0.4132 (2) | 0.64263 (19) | 0.25710 (12) | 0.0351 (4) | |
H16A | 0.4627 | 0.7413 | 0.2673 | 0.042* | |
C17 | 0.3573 (2) | 0.57331 (19) | 0.33897 (12) | 0.0336 (3) | |
C18 | 0.2834 (3) | 0.6385 (2) | 0.40089 (13) | 0.0405 (4) | |
H18A | 0.2732 | 0.7258 | 0.3906 | 0.049* | |
C19 | 0.2251 (3) | 0.5746 (2) | 0.47743 (13) | 0.0435 (4) | |
H19A | 0.1746 | 0.6180 | 0.5179 | 0.052* | |
C20 | 0.2426 (2) | 0.4462 (2) | 0.49313 (12) | 0.0392 (4) | |
C21 | 0.3189 (3) | 0.3808 (2) | 0.43452 (13) | 0.0411 (4) | |
H21A | 0.3314 | 0.2947 | 0.4463 | 0.049* | |
C22 | 0.3765 (2) | 0.4453 (2) | 0.35809 (12) | 0.0377 (4) | |
H22A | 0.4290 | 0.4021 | 0.3188 | 0.045* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0452 (3) | 0.0336 (2) | 0.0311 (2) | 0.01036 (19) | 0.00304 (18) | 0.00748 (16) |
S2 | 0.0439 (3) | 0.0399 (3) | 0.0487 (3) | 0.0095 (2) | 0.0095 (2) | 0.0183 (2) |
Cl1 | 0.1026 (6) | 0.0671 (4) | 0.1053 (6) | 0.0239 (4) | 0.0179 (5) | 0.0532 (4) |
Cl2 | 0.0592 (4) | 0.0895 (4) | 0.0412 (3) | 0.0276 (3) | 0.0205 (2) | 0.0311 (3) |
N1 | 0.0374 (9) | 0.0467 (9) | 0.0348 (8) | 0.0072 (7) | 0.0040 (6) | 0.0042 (7) |
N2 | 0.0395 (9) | 0.0373 (8) | 0.0343 (8) | 0.0054 (7) | 0.0059 (6) | 0.0041 (6) |
N3 | 0.0280 (7) | 0.0361 (7) | 0.0276 (6) | 0.0057 (6) | 0.0063 (5) | 0.0072 (5) |
N4 | 0.0309 (7) | 0.0381 (8) | 0.0310 (7) | 0.0043 (6) | 0.0068 (6) | 0.0083 (6) |
N5 | 0.0348 (10) | 0.0588 (12) | 0.0699 (14) | 0.0003 (9) | 0.0002 (9) | −0.0045 (10) |
O1 | 0.0376 (7) | 0.0657 (9) | 0.0394 (7) | 0.0221 (7) | 0.0121 (6) | 0.0219 (6) |
O2 | 0.0397 (10) | 0.0808 (15) | 0.144 (2) | −0.0193 (10) | −0.0013 (12) | 0.0271 (14) |
O3 | 0.0505 (11) | 0.1096 (17) | 0.0642 (12) | 0.0057 (11) | −0.0134 (9) | 0.0150 (11) |
C1 | 0.0357 (10) | 0.0531 (11) | 0.0356 (9) | 0.0142 (9) | 0.0050 (7) | 0.0100 (8) |
C2 | 0.0512 (12) | 0.0492 (11) | 0.0379 (10) | 0.0227 (10) | 0.0005 (8) | 0.0052 (8) |
C3 | 0.0614 (14) | 0.0369 (10) | 0.0472 (11) | 0.0146 (9) | 0.0109 (10) | 0.0109 (8) |
C4 | 0.0462 (12) | 0.0482 (12) | 0.0640 (14) | 0.0089 (10) | 0.0117 (10) | 0.0162 (10) |
C5 | 0.0370 (10) | 0.0531 (12) | 0.0483 (11) | 0.0151 (9) | 0.0045 (8) | 0.0099 (9) |
C6 | 0.0361 (9) | 0.0473 (10) | 0.0274 (8) | 0.0153 (8) | 0.0051 (7) | 0.0060 (7) |
C7 | 0.0338 (10) | 0.0613 (12) | 0.0345 (9) | 0.0139 (9) | 0.0063 (7) | 0.0156 (8) |
C8 | 0.0308 (9) | 0.0439 (10) | 0.0287 (8) | 0.0090 (7) | 0.0048 (6) | 0.0046 (7) |
C9 | 0.0328 (8) | 0.0338 (8) | 0.0285 (7) | 0.0086 (7) | 0.0076 (6) | 0.0050 (6) |
C10 | 0.0283 (8) | 0.0348 (8) | 0.0291 (8) | 0.0071 (7) | 0.0062 (6) | 0.0073 (6) |
C11 | 0.0302 (8) | 0.0349 (8) | 0.0295 (8) | 0.0083 (7) | 0.0086 (6) | 0.0075 (6) |
C12 | 0.0316 (9) | 0.0332 (8) | 0.0328 (8) | 0.0049 (7) | 0.0087 (7) | 0.0074 (6) |
C13 | 0.0331 (9) | 0.0427 (10) | 0.0329 (8) | 0.0063 (8) | 0.0058 (7) | 0.0053 (7) |
C14 | 0.0309 (9) | 0.0404 (10) | 0.0457 (10) | 0.0031 (8) | 0.0069 (8) | 0.0002 (8) |
C15 | 0.0408 (11) | 0.0304 (9) | 0.0591 (12) | 0.0004 (8) | 0.0172 (9) | 0.0059 (8) |
C16 | 0.0346 (9) | 0.0352 (9) | 0.0315 (8) | 0.0056 (7) | 0.0082 (7) | 0.0046 (7) |
C17 | 0.0302 (8) | 0.0395 (9) | 0.0274 (8) | 0.0073 (7) | 0.0052 (6) | 0.0037 (6) |
C18 | 0.0448 (11) | 0.0387 (9) | 0.0372 (9) | 0.0115 (8) | 0.0118 (8) | 0.0053 (7) |
C19 | 0.0466 (11) | 0.0532 (12) | 0.0327 (9) | 0.0178 (9) | 0.0138 (8) | 0.0031 (8) |
C20 | 0.0331 (9) | 0.0540 (11) | 0.0263 (8) | 0.0086 (8) | 0.0047 (7) | 0.0089 (7) |
C21 | 0.0434 (11) | 0.0495 (11) | 0.0341 (9) | 0.0201 (9) | 0.0051 (8) | 0.0118 (8) |
C22 | 0.0389 (10) | 0.0496 (10) | 0.0278 (8) | 0.0192 (8) | 0.0060 (7) | 0.0055 (7) |
S1—C9 | 1.7342 (18) | C5—C6 | 1.386 (3) |
S1—C10 | 1.7727 (18) | C5—H5A | 0.93 |
S2—C15 | 1.694 (2) | C7—C8 | 1.486 (3) |
S2—C12 | 1.7330 (17) | C7—H7A | 0.97 |
Cl1—C3 | 1.736 (2) | C7—H7B | 0.97 |
Cl2—C20 | 1.7386 (18) | C10—C16 | 1.339 (2) |
N1—C8 | 1.302 (2) | C10—C11 | 1.483 (2) |
N1—N2 | 1.403 (2) | C11—C12 | 1.467 (2) |
N2—C9 | 1.303 (2) | C12—C13 | 1.364 (3) |
N3—C9 | 1.364 (2) | C13—C14 | 1.413 (3) |
N3—C8 | 1.376 (2) | C13—H13A | 0.93 |
N3—N4 | 1.383 (2) | C14—C15 | 1.354 (3) |
N4—C11 | 1.296 (2) | C15—H15A | 0.93 |
N5—O3 | 1.210 (3) | C16—C17 | 1.468 (2) |
N5—O2 | 1.221 (3) | C16—H16A | 0.93 |
N5—C14 | 1.449 (3) | C17—C22 | 1.391 (3) |
O1—C6 | 1.375 (2) | C17—C18 | 1.397 (3) |
O1—C7 | 1.410 (2) | C18—C19 | 1.384 (3) |
C1—C2 | 1.382 (3) | C18—H18A | 0.93 |
C1—C6 | 1.391 (3) | C19—C20 | 1.377 (3) |
C1—H1A | 0.93 | C19—H19A | 0.93 |
C2—C3 | 1.378 (3) | C20—C21 | 1.381 (3) |
C2—H2A | 0.93 | C21—C22 | 1.383 (3) |
C3—C4 | 1.381 (3) | C21—H21A | 0.93 |
C4—C5 | 1.378 (3) | C22—H22A | 0.93 |
C4—H4A | 0.93 | ||
C9—S1—C10 | 95.62 (8) | N3—C9—S1 | 121.40 (13) |
C15—S2—C12 | 92.18 (10) | C16—C10—C11 | 122.26 (16) |
C8—N1—N2 | 107.87 (15) | C16—C10—S1 | 122.39 (13) |
C9—N2—N1 | 106.29 (15) | C11—C10—S1 | 115.32 (12) |
C9—N3—C8 | 104.63 (14) | N4—C11—C12 | 114.57 (15) |
C9—N3—N4 | 128.75 (14) | N4—C11—C10 | 125.55 (16) |
C8—N3—N4 | 126.23 (14) | C12—C11—C10 | 119.85 (15) |
C11—N4—N3 | 115.80 (14) | C13—C12—C11 | 128.47 (16) |
O3—N5—O2 | 124.2 (2) | C13—C12—S2 | 111.57 (14) |
O3—N5—C14 | 118.5 (2) | C11—C12—S2 | 119.62 (13) |
O2—N5—C14 | 117.2 (2) | C12—C13—C14 | 110.48 (17) |
C6—O1—C7 | 115.44 (15) | C12—C13—H13A | 124.8 |
C2—C1—C6 | 119.61 (19) | C14—C13—H13A | 124.8 |
C2—C1—H1A | 120.2 | C15—C14—C13 | 115.29 (18) |
C6—C1—H1A | 120.2 | C15—C14—N5 | 122.83 (19) |
C3—C2—C1 | 119.4 (2) | C13—C14—N5 | 121.8 (2) |
C3—C2—H2A | 120.3 | C14—C15—S2 | 110.47 (15) |
C1—C2—H2A | 120.3 | C14—C15—H15A | 124.8 |
C2—C3—C4 | 121.7 (2) | S2—C15—H15A | 124.8 |
C2—C3—Cl1 | 119.05 (18) | C10—C16—C17 | 127.24 (17) |
C4—C3—Cl1 | 119.29 (18) | C10—C16—H16A | 116.4 |
C5—C4—C3 | 118.8 (2) | C17—C16—H16A | 116.4 |
C5—C4—H4A | 120.6 | C22—C17—C18 | 118.34 (16) |
C3—C4—H4A | 120.6 | C22—C17—C16 | 122.56 (16) |
C4—C5—C6 | 120.4 (2) | C18—C17—C16 | 119.10 (17) |
C4—C5—H5A | 119.8 | C19—C18—C17 | 120.80 (18) |
C6—C5—H5A | 119.8 | C19—C18—H18A | 119.6 |
O1—C6—C5 | 116.08 (17) | C17—C18—H18A | 119.6 |
O1—C6—C1 | 123.84 (17) | C20—C19—C18 | 119.36 (18) |
C5—C6—C1 | 120.07 (18) | C20—C19—H19A | 120.3 |
O1—C7—C8 | 109.98 (16) | C18—C19—H19A | 120.3 |
O1—C7—H7A | 109.7 | C19—C20—C21 | 121.20 (17) |
C8—C7—H7A | 109.7 | C19—C20—Cl2 | 119.24 (15) |
O1—C7—H7B | 109.7 | C21—C20—Cl2 | 119.55 (16) |
C8—C7—H7B | 109.7 | C20—C21—C22 | 119.05 (18) |
H7A—C7—H7B | 108.2 | C20—C21—H21A | 120.5 |
N1—C8—N3 | 109.93 (16) | C22—C21—H21A | 120.5 |
N1—C8—C7 | 124.21 (17) | C21—C22—C17 | 121.21 (17) |
N3—C8—C7 | 125.52 (17) | C21—C22—H22A | 119.4 |
N2—C9—N3 | 111.26 (15) | C17—C22—H22A | 119.4 |
N2—C9—S1 | 127.32 (14) | ||
C8—N1—N2—C9 | −0.1 (2) | C16—C10—C11—N4 | −140.1 (2) |
C9—N3—N4—C11 | −21.5 (3) | S1—C10—C11—N4 | 38.2 (2) |
C8—N3—N4—C11 | 166.81 (17) | C16—C10—C11—C12 | 42.0 (3) |
C6—C1—C2—C3 | 0.0 (3) | S1—C10—C11—C12 | −139.59 (14) |
C1—C2—C3—C4 | −1.3 (3) | N4—C11—C12—C13 | −156.04 (19) |
C1—C2—C3—Cl1 | 178.71 (16) | C10—C11—C12—C13 | 22.0 (3) |
C2—C3—C4—C5 | 0.8 (4) | N4—C11—C12—S2 | 16.7 (2) |
Cl1—C3—C4—C5 | −179.26 (18) | C10—C11—C12—S2 | −165.26 (13) |
C3—C4—C5—C6 | 1.1 (4) | C15—S2—C12—C13 | −0.15 (16) |
C7—O1—C6—C5 | 161.28 (18) | C15—S2—C12—C11 | −174.03 (15) |
C7—O1—C6—C1 | −19.9 (3) | C11—C12—C13—C14 | 173.10 (18) |
C4—C5—C6—O1 | 176.5 (2) | S2—C12—C13—C14 | −0.1 (2) |
C4—C5—C6—C1 | −2.4 (3) | C12—C13—C14—C15 | 0.4 (3) |
C2—C1—C6—O1 | −176.98 (18) | C12—C13—C14—N5 | −176.46 (18) |
C2—C1—C6—C5 | 1.8 (3) | O3—N5—C14—C15 | −178.6 (2) |
C6—O1—C7—C8 | −172.11 (16) | O2—N5—C14—C15 | 1.6 (4) |
N2—N1—C8—N3 | −0.7 (2) | O3—N5—C14—C13 | −2.0 (3) |
N2—N1—C8—C7 | −174.39 (17) | O2—N5—C14—C13 | 178.2 (2) |
C9—N3—C8—N1 | 1.1 (2) | C13—C14—C15—S2 | −0.5 (2) |
N4—N3—C8—N1 | 174.43 (16) | N5—C14—C15—S2 | 176.31 (17) |
C9—N3—C8—C7 | 174.73 (17) | C12—S2—C15—C14 | 0.37 (16) |
N4—N3—C8—C7 | −12.0 (3) | C11—C10—C16—C17 | 177.31 (17) |
O1—C7—C8—N1 | −132.7 (2) | S1—C10—C16—C17 | −0.9 (3) |
O1—C7—C8—N3 | 54.6 (3) | C10—C16—C17—C22 | 39.3 (3) |
N1—N2—C9—N3 | 0.8 (2) | C10—C16—C17—C18 | −141.3 (2) |
N1—N2—C9—S1 | −177.89 (13) | C22—C17—C18—C19 | −2.3 (3) |
C8—N3—C9—N2 | −1.18 (19) | C16—C17—C18—C19 | 178.31 (18) |
N4—N3—C9—N2 | −174.25 (16) | C17—C18—C19—C20 | 0.9 (3) |
C8—N3—C9—S1 | 177.59 (13) | C18—C19—C20—C21 | 0.7 (3) |
N4—N3—C9—S1 | 4.5 (2) | C18—C19—C20—Cl2 | 179.75 (16) |
C10—S1—C9—N2 | −155.83 (17) | C19—C20—C21—C22 | −0.8 (3) |
C10—S1—C9—N3 | 25.61 (15) | Cl2—C20—C21—C22 | −179.87 (15) |
C9—S1—C10—C16 | 135.40 (16) | C20—C21—C22—C17 | −0.6 (3) |
C9—S1—C10—C11 | −42.97 (14) | C18—C17—C22—C21 | 2.2 (3) |
N3—N4—C11—C12 | 175.41 (15) | C16—C17—C22—C21 | −178.45 (18) |
N3—N4—C11—C10 | −2.5 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15A···N2i | 0.93 | 2.60 | 3.495 (3) | 162 |
C21—H21A···Cl1ii | 0.93 | 2.81 | 3.691 (2) | 159 |
Symmetry codes: (i) x+1, y+1, z; (ii) x, y−1, z+1. |
Experimental details
Crystal data | |
Chemical formula | C22H13Cl2N5O3S2 |
Mr | 530.39 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 8.5021 (2), 10.0379 (2), 14.3623 (3) |
α, β, γ (°) | 94.434 (1), 97.981 (1), 109.242 (1) |
V (Å3) | 1136.07 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.51 |
Crystal size (mm) | 0.39 × 0.32 × 0.11 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.827, 0.946 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19590, 6548, 5142 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.133, 1.04 |
No. of reflections | 6548 |
No. of parameters | 307 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.59, −0.46 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15A···N2i | 0.93 | 2.60 | 3.495 (3) | 162 |
C21—H21A···Cl1ii | 0.93 | 2.81 | 3.691 (2) | 159 |
Symmetry codes: (i) x+1, y+1, z; (ii) x, y−1, z+1. |
Footnotes
‡Thomson Reuters ResearcherID: A-3561-2009.
Acknowledgements
HKF, SIJA and IAR thank Universiti Sains Malaysia for the Research University Grants (Nos.1001/PFIZIK/811160 and 1001/PFIZIK/811151).
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.
The 1,2,4-triazole nucleus has been incorporated into a wide variety of therapeutically interesting compounds. Several compounds containing 1,2,4-triazole rings are well known as drugs. For example, fluconazole is used as an antimicrobial drug (Shujuan et al., 2004), while vorozole, letrozole and anastrozole are non-steroidal drugs used for the treatment of cancer (Clemons et al., 2004) and loreclezole is used as an anticonvulsant (Johnston et al., 2002). Similarly substituted derivatives of triazole possess comprehensive bioactivities such as antimicrobial, anti-inflammatory, analgesic, antihypertensive, anticonvulsant and antiviral activities (Wei et al., 2007). In continuation of our search on the synthesis of biologically active compounds, we synthesized triazolothiadiazine from triazole.
In the title compound, the 1,2,4-triazole (C8/N1–N3/C9) and thiophene (C12–C15/S2) rings are essentially planar, with maximum deviations of 0.006 (2) and 0.003 (2) Å for atom C9 and C14, respectively. The 1,3,4-thiadiazine (C9–C11/N3/N4/S1) ring is slightly distorted and may be regarded as having a half-chair conformation with puckering parameters, Q = 0.474 (2) Å, θ = 113.9 (2)°, ϕ = 149.1 (2)° (Cremer & Pople, 1975).
The two benzene rings (C1–C6 and C17–C22) and the thiophene (C12–C15/S2) ring form dihedral angles of 35.6 (1), 80.7 (1) and 14.2 (1)°, respectively, with the 1,2,4-triazole ring (C8/N1–N3/C9). The geometric parameters are consistent with those observed in closely related structures (Goh et al., 2010a,b,c,d). The bond lengths show normal values (Allen et al. 1987).
In the crystal packing (Fig. 2), the molecules are connected by intermolecular C15—H15A···N2 and C21—H21A···Cl1 interactions that link the molecules into two–dimensional arrays parallel to the (1 1 1). In addition, the molecular packing is also stabilized by π–π stacking interactions between thiophene (C12–C15/S2; centroid Cg1) and 1,2,4-triazole (C8/N1–N3/C9; centroid Cg2) rings, with a Cg1···Cg2# separation of 3.5975 (11) Å (symmetry code #: 1-x, 1-y, -z), and that between 1,2,4-triazole (C8/N1–N3/C9) rings at (x, y, z) and (-x, 1-y, -z), with their centroids separated by 3.4324 (11) Å.