organic compounds
(E)-3-Allylsulfanyl-N-(4-methoxybenzylidene)-5-(3,4,5-trimethoxyphenyl)-4H-1,2,4-triazol-4-amine
aCenter for Research and Development of Fine Chemicals, Guizhou University, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guiyang 550025, People's Republic of China, and bDepartment of Chemistry, Bijie University, Bijie 551700, People's Republic of China
*Correspondence e-mail: songbaoan22@yahoo.com
The title compound, C22H24N4O4S, adopts a trans configuration with respect to the C=N double bond. A weak intramolecular C—H⋯N hydrogen bond is observed between the N atom of the C=N double bond and its neighboring phenyl H atom. The is stabilized by intermolecular C—H⋯N hydrogen bonds and C—H⋯π interactions.
Related literature
For background on the biological activity of triazole compounds, see: Bekircan & Gumrukcuoglu (2005); Ewiss et al. (1986); Ikizler et al. (1998). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536809002645/zl2154sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809002645/zl2154Isup2.hkl
A mixture of 3-bromoprop-1-ene (5 mmol) and methanol (3 mL) was added dropwise to a stirred solution of (E)-4-(4-methoxybenzylideneamino)-5-(3,4,5-trimethoxyphenyl)-4H-1,2,4-triazole-3-thiol (5 mmol) and sodium hydroxide (5 mmol) in water (15 mL). The resulting mixture was stirred at room temperature for 4 hours. After allowing the resulting solution to stand in air at room temperature for 2 days, colorless block-shaped crystals were formed at the bottom of the vessel on slow evaporation of the solvent. The crystals were isolated, washed with ethanol and dried.
H atoms were placed in calculated positions and were treated as riding on the parent C atoms with C—H = 0.93 - 0.97 Å, and with Uiso(H) = 1.5 Ueq(C) for methyl C atoms or Uiso(H) = 1.2 Ueq(C) for the other C atoms.
Data collection: SMART (Bruker, 1997); cell
SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The structure of the title compound showing displacement ellipsoids drawn at the 30% probability level. | |
Fig. 2. A perspective view of the R22(12) ring motif formed through the intermolecular C12—H12···N2 hydrogen bond. Dashed lines indicate C-H···N hydrogen bonds and π-π stacking interactions. | |
Fig. 3. Crystal structure of the title compound viewed along the a-axis. Hydrogen bonds are shown as dashed lines. |
C22H24N4O4S | F(000) = 928 |
Mr = 440.51 | Dx = 1.307 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 2895 reflections |
a = 7.9414 (12) Å | θ = 2.4–27.9° |
b = 15.043 (2) Å | µ = 0.18 mm−1 |
c = 19.047 (3) Å | T = 293 K |
β = 100.385 (6)° | Block, colorless |
V = 2238.1 (6) Å3 | 0.36 × 0.30 × 0.26 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 3929 independent reflections |
Radiation source: fine-focus sealed tube | 3354 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.028 |
ϕ and ω scans | θmax = 25.0°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −8→9 |
Tmin = 0.936, Tmax = 0.956 | k = −17→17 |
23323 measured reflections | l = −22→22 |
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)] = 0.035 | H-atom parameters constrained |
wR(F2) = 0.103 | w = 1/[σ2(Fo2) + (0.0532P)2 + 0.4889P] where P = (Fo2 + 2Fc2)/3 |
S = 1.07 | (Δ/σ)max = 0.001 |
3929 reflections | Δρmax = 0.35 e Å−3 |
281 parameters | Δρmin = −0.20 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0132 (12) |
C22H24N4O4S | V = 2238.1 (6) Å3 |
Mr = 440.51 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.9414 (12) Å | µ = 0.18 mm−1 |
b = 15.043 (2) Å | T = 293 K |
c = 19.047 (3) Å | 0.36 × 0.30 × 0.26 mm |
β = 100.385 (6)° |
Bruker SMART CCD area-detector diffractometer | 3929 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3354 reflections with I > 2σ(I) |
Tmin = 0.936, Tmax = 0.956 | Rint = 0.028 |
23323 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 0 restraints |
wR(F2) = 0.103 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.35 e Å−3 |
3929 reflections | Δρmin = −0.20 e Å−3 |
281 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 | −0.32086 (5) | 0.40159 (3) | 0.50696 (2) | 0.05036 (16) | |
O2 | 0.53116 (15) | 0.34899 (8) | 0.80320 (6) | 0.0566 (3) | |
O4 | 0.63039 (17) | 0.63866 (9) | 0.73084 (7) | 0.0647 (4) | |
O1 | 0.27845 (18) | −0.05796 (9) | 0.56221 (8) | 0.0737 (4) | |
N4 | 0.04176 (16) | 0.33704 (8) | 0.60779 (7) | 0.0419 (3) | |
N3 | −0.00642 (16) | 0.42733 (8) | 0.59683 (7) | 0.0392 (3) | |
O3 | 0.72831 (15) | 0.49408 (9) | 0.81168 (6) | 0.0614 (4) | |
N2 | −0.15075 (18) | 0.54951 (9) | 0.56327 (8) | 0.0505 (4) | |
N1 | 0.00133 (18) | 0.57222 (9) | 0.60765 (8) | 0.0493 (3) | |
C13 | 0.10497 (19) | 0.20262 (10) | 0.55230 (8) | 0.0412 (4) | |
C3 | 0.5743 (2) | 0.49373 (11) | 0.76468 (8) | 0.0461 (4) | |
C6 | 0.25403 (19) | 0.49468 (10) | 0.67595 (8) | 0.0394 (3) | |
C12 | 0.05405 (19) | 0.29577 (10) | 0.55028 (8) | 0.0426 (4) | |
H12 | 0.0303 | 0.3254 | 0.5068 | 0.051* | |
C14 | 0.1270 (2) | 0.15253 (11) | 0.61543 (9) | 0.0464 (4) | |
H14 | 0.1020 | 0.1778 | 0.6569 | 0.056* | |
C8 | −0.1542 (2) | 0.46257 (10) | 0.55731 (8) | 0.0431 (4) | |
C7 | 0.0855 (2) | 0.49833 (10) | 0.62810 (8) | 0.0398 (3) | |
C1 | 0.3077 (2) | 0.41986 (10) | 0.71705 (8) | 0.0415 (4) | |
H1 | 0.2368 | 0.3704 | 0.7150 | 0.050* | |
C2 | 0.4679 (2) | 0.41929 (11) | 0.76131 (8) | 0.0435 (4) | |
C5 | 0.3589 (2) | 0.56949 (10) | 0.67940 (8) | 0.0443 (4) | |
H5 | 0.3221 | 0.6196 | 0.6524 | 0.053* | |
C4 | 0.5188 (2) | 0.56862 (11) | 0.72351 (9) | 0.0463 (4) | |
C15 | 0.1852 (2) | 0.06656 (11) | 0.61640 (10) | 0.0517 (4) | |
H15 | 0.2013 | 0.0342 | 0.6587 | 0.062* | |
C16 | 0.2205 (2) | 0.02742 (11) | 0.55411 (10) | 0.0518 (4) | |
C18 | 0.1392 (2) | 0.16211 (12) | 0.49085 (9) | 0.0517 (4) | |
H18 | 0.1234 | 0.1943 | 0.4485 | 0.062* | |
C10 | −0.3730 (3) | 0.30522 (14) | 0.62529 (10) | 0.0633 (5) | |
H10 | −0.2735 | 0.3199 | 0.6569 | 0.076* | |
C9 | −0.4510 (2) | 0.37642 (12) | 0.57463 (10) | 0.0558 (4) | |
H9A | −0.4645 | 0.4300 | 0.6014 | 0.067* | |
H9B | −0.5639 | 0.3575 | 0.5511 | 0.067* | |
C19 | 0.4213 (3) | 0.27423 (13) | 0.80370 (12) | 0.0717 (6) | |
H19A | 0.4793 | 0.2294 | 0.8349 | 0.108* | |
H19B | 0.3912 | 0.2507 | 0.7562 | 0.108* | |
H19C | 0.3194 | 0.2922 | 0.8203 | 0.108* | |
C17 | 0.1965 (2) | 0.07488 (12) | 0.49092 (10) | 0.0561 (5) | |
H17 | 0.2184 | 0.0488 | 0.4492 | 0.067* | |
C21 | 0.5991 (3) | 0.70808 (15) | 0.68073 (15) | 0.0924 (8) | |
H21A | 0.6853 | 0.7531 | 0.6925 | 0.139* | |
H21B | 0.4884 | 0.7333 | 0.6816 | 0.139* | |
H21C | 0.6021 | 0.6852 | 0.6339 | 0.139* | |
C11 | −0.4301 (3) | 0.22612 (15) | 0.62922 (12) | 0.0764 (6) | |
H11A | −0.5292 | 0.2083 | 0.5987 | 0.092* | |
H11B | −0.3724 | 0.1865 | 0.6626 | 0.092* | |
C20 | 0.8754 (3) | 0.47977 (17) | 0.78013 (13) | 0.0797 (6) | |
H20A | 0.9762 | 0.4808 | 0.8165 | 0.120* | |
H20B | 0.8829 | 0.5258 | 0.7459 | 0.120* | |
H20C | 0.8664 | 0.4231 | 0.7566 | 0.120* | |
C22 | 0.3150 (3) | −0.10321 (14) | 0.50050 (15) | 0.0858 (8) | |
H22A | 0.3545 | −0.1623 | 0.5135 | 0.129* | |
H22B | 0.4019 | −0.0714 | 0.4818 | 0.129* | |
H22C | 0.2129 | −0.1063 | 0.4648 | 0.129* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0433 (3) | 0.0626 (3) | 0.0420 (3) | −0.00628 (19) | −0.00102 (17) | 0.00451 (18) |
O2 | 0.0536 (7) | 0.0571 (7) | 0.0529 (7) | −0.0027 (6) | −0.0065 (5) | 0.0096 (6) |
O4 | 0.0612 (8) | 0.0609 (8) | 0.0682 (8) | −0.0265 (6) | 0.0013 (6) | −0.0029 (6) |
O1 | 0.0718 (9) | 0.0497 (7) | 0.0989 (11) | 0.0117 (6) | 0.0139 (8) | −0.0119 (7) |
N4 | 0.0437 (7) | 0.0341 (7) | 0.0443 (7) | −0.0016 (5) | −0.0015 (6) | 0.0014 (5) |
N3 | 0.0391 (7) | 0.0357 (6) | 0.0410 (7) | −0.0017 (5) | 0.0026 (5) | 0.0035 (5) |
O3 | 0.0438 (7) | 0.0890 (9) | 0.0478 (7) | −0.0136 (6) | −0.0018 (5) | −0.0031 (6) |
N2 | 0.0465 (8) | 0.0451 (8) | 0.0576 (9) | 0.0013 (6) | 0.0032 (6) | 0.0085 (6) |
N1 | 0.0475 (8) | 0.0402 (7) | 0.0582 (9) | −0.0013 (6) | 0.0036 (7) | 0.0031 (6) |
C13 | 0.0378 (8) | 0.0434 (8) | 0.0413 (8) | −0.0037 (6) | 0.0038 (6) | −0.0012 (7) |
C3 | 0.0399 (9) | 0.0610 (10) | 0.0365 (8) | −0.0068 (7) | 0.0046 (7) | −0.0069 (7) |
C6 | 0.0382 (8) | 0.0426 (8) | 0.0378 (8) | −0.0028 (6) | 0.0076 (6) | −0.0048 (6) |
C12 | 0.0397 (8) | 0.0447 (8) | 0.0421 (9) | −0.0025 (7) | 0.0042 (7) | 0.0056 (7) |
C14 | 0.0513 (9) | 0.0446 (9) | 0.0451 (9) | −0.0001 (7) | 0.0137 (7) | 0.0000 (7) |
C8 | 0.0408 (9) | 0.0453 (9) | 0.0423 (9) | −0.0010 (7) | 0.0045 (7) | 0.0076 (7) |
C7 | 0.0419 (8) | 0.0371 (8) | 0.0406 (8) | −0.0032 (6) | 0.0083 (7) | 0.0002 (6) |
C1 | 0.0415 (8) | 0.0427 (8) | 0.0396 (8) | −0.0062 (6) | 0.0056 (7) | −0.0025 (6) |
C2 | 0.0440 (9) | 0.0486 (9) | 0.0376 (8) | 0.0000 (7) | 0.0063 (7) | −0.0020 (7) |
C5 | 0.0493 (9) | 0.0403 (8) | 0.0434 (9) | −0.0051 (7) | 0.0087 (7) | −0.0021 (7) |
C4 | 0.0448 (9) | 0.0505 (9) | 0.0445 (9) | −0.0136 (7) | 0.0101 (7) | −0.0086 (7) |
C15 | 0.0523 (10) | 0.0467 (9) | 0.0575 (10) | 0.0028 (8) | 0.0141 (8) | 0.0081 (8) |
C16 | 0.0399 (9) | 0.0437 (9) | 0.0707 (12) | −0.0015 (7) | 0.0068 (8) | −0.0087 (8) |
C18 | 0.0538 (10) | 0.0591 (10) | 0.0404 (9) | −0.0002 (8) | 0.0038 (7) | −0.0009 (7) |
C10 | 0.0613 (12) | 0.0763 (13) | 0.0538 (11) | −0.0111 (10) | 0.0142 (9) | −0.0017 (9) |
C9 | 0.0467 (10) | 0.0563 (10) | 0.0668 (12) | −0.0027 (8) | 0.0169 (9) | −0.0012 (9) |
C19 | 0.0762 (14) | 0.0586 (11) | 0.0720 (13) | −0.0088 (10) | −0.0088 (10) | 0.0201 (10) |
C17 | 0.0496 (10) | 0.0647 (11) | 0.0531 (11) | 0.0005 (8) | 0.0068 (8) | −0.0199 (9) |
C21 | 0.0758 (15) | 0.0691 (14) | 0.124 (2) | −0.0331 (12) | −0.0033 (14) | 0.0223 (14) |
C11 | 0.0755 (14) | 0.0708 (14) | 0.0833 (15) | 0.0001 (11) | 0.0154 (12) | 0.0125 (11) |
C20 | 0.0458 (11) | 0.1008 (17) | 0.0890 (16) | 0.0021 (11) | 0.0027 (11) | −0.0133 (13) |
C22 | 0.0673 (14) | 0.0626 (13) | 0.128 (2) | 0.0019 (10) | 0.0205 (14) | −0.0384 (13) |
S1—C8 | 1.7477 (16) | C1—H1 | 0.9300 |
S1—C9 | 1.8312 (18) | C5—C4 | 1.391 (2) |
O2—C2 | 1.3649 (19) | C5—H5 | 0.9300 |
O2—C19 | 1.424 (2) | C15—C16 | 1.397 (2) |
O4—C4 | 1.3676 (19) | C15—H15 | 0.9300 |
O4—C21 | 1.406 (3) | C16—C17 | 1.383 (3) |
O1—C16 | 1.364 (2) | C18—C17 | 1.389 (2) |
O1—C22 | 1.433 (3) | C18—H18 | 0.9300 |
N4—C12 | 1.278 (2) | C10—C11 | 1.280 (3) |
N4—N3 | 1.4164 (17) | C10—C9 | 1.499 (3) |
N3—C7 | 1.3681 (19) | C10—H10 | 0.9300 |
N3—C8 | 1.3810 (19) | C9—H9A | 0.9700 |
O3—C3 | 1.3795 (19) | C9—H9B | 0.9700 |
O3—C20 | 1.423 (2) | C19—H19A | 0.9600 |
N2—C8 | 1.313 (2) | C19—H19B | 0.9600 |
N2—N1 | 1.3863 (19) | C19—H19C | 0.9600 |
N1—C7 | 1.319 (2) | C17—H17 | 0.9300 |
C13—C18 | 1.389 (2) | C21—H21A | 0.9600 |
C13—C14 | 1.403 (2) | C21—H21B | 0.9600 |
C13—C12 | 1.457 (2) | C21—H21C | 0.9600 |
C3—C2 | 1.397 (2) | C11—H11A | 0.9300 |
C3—C4 | 1.398 (2) | C11—H11B | 0.9300 |
C6—C1 | 1.393 (2) | C20—H20A | 0.9600 |
C6—C5 | 1.394 (2) | C20—H20B | 0.9600 |
C6—C7 | 1.478 (2) | C20—H20C | 0.9600 |
C12—H12 | 0.9300 | C22—H22A | 0.9600 |
C14—C15 | 1.372 (2) | C22—H22B | 0.9600 |
C14—H14 | 0.9300 | C22—H22C | 0.9600 |
C1—C2 | 1.394 (2) | ||
C8—S1—C9 | 100.95 (8) | C16—C15—H15 | 119.9 |
C2—O2—C19 | 117.02 (13) | O1—C16—C17 | 125.13 (17) |
C4—O4—C21 | 118.08 (15) | O1—C16—C15 | 114.57 (17) |
C16—O1—C22 | 117.95 (17) | C17—C16—C15 | 120.29 (16) |
C12—N4—N3 | 113.56 (12) | C17—C18—C13 | 121.84 (16) |
C7—N3—C8 | 105.79 (12) | C17—C18—H18 | 119.1 |
C7—N3—N4 | 125.15 (12) | C13—C18—H18 | 119.1 |
C8—N3—N4 | 128.97 (12) | C11—C10—C9 | 126.3 (2) |
C3—O3—C20 | 115.13 (14) | C11—C10—H10 | 116.8 |
C8—N2—N1 | 107.50 (13) | C9—C10—H10 | 116.8 |
C7—N1—N2 | 108.17 (13) | C10—C9—S1 | 112.37 (13) |
C18—C13—C14 | 118.26 (15) | C10—C9—H9A | 109.1 |
C18—C13—C12 | 119.68 (14) | S1—C9—H9A | 109.1 |
C14—C13—C12 | 122.03 (14) | C10—C9—H9B | 109.1 |
O3—C3—C2 | 119.41 (15) | S1—C9—H9B | 109.1 |
O3—C3—C4 | 120.93 (15) | H9A—C9—H9B | 107.9 |
C2—C3—C4 | 119.56 (15) | O2—C19—H19A | 109.5 |
C1—C6—C5 | 120.38 (15) | O2—C19—H19B | 109.5 |
C1—C6—C7 | 121.86 (13) | H19A—C19—H19B | 109.5 |
C5—C6—C7 | 117.75 (14) | O2—C19—H19C | 109.5 |
N4—C12—C13 | 120.54 (14) | H19A—C19—H19C | 109.5 |
N4—C12—H12 | 119.7 | H19B—C19—H19C | 109.5 |
C13—C12—H12 | 119.7 | C16—C17—C18 | 118.84 (16) |
C15—C14—C13 | 120.48 (15) | C16—C17—H17 | 120.6 |
C15—C14—H14 | 119.8 | C18—C17—H17 | 120.6 |
C13—C14—H14 | 119.8 | O4—C21—H21A | 109.5 |
N2—C8—N3 | 109.43 (13) | O4—C21—H21B | 109.5 |
N2—C8—S1 | 124.92 (12) | H21A—C21—H21B | 109.5 |
N3—C8—S1 | 125.65 (12) | O4—C21—H21C | 109.5 |
N1—C7—N3 | 109.08 (14) | H21A—C21—H21C | 109.5 |
N1—C7—C6 | 124.59 (14) | H21B—C21—H21C | 109.5 |
N3—C7—C6 | 126.32 (13) | C10—C11—H11A | 120.0 |
C6—C1—C2 | 119.90 (14) | C10—C11—H11B | 120.0 |
C6—C1—H1 | 120.1 | H11A—C11—H11B | 120.0 |
C2—C1—H1 | 120.1 | O3—C20—H20A | 109.5 |
O2—C2—C1 | 123.92 (14) | O3—C20—H20B | 109.5 |
O2—C2—C3 | 115.99 (14) | H20A—C20—H20B | 109.5 |
C1—C2—C3 | 120.09 (15) | O3—C20—H20C | 109.5 |
C4—C5—C6 | 119.56 (15) | H20A—C20—H20C | 109.5 |
C4—C5—H5 | 120.2 | H20B—C20—H20C | 109.5 |
C6—C5—H5 | 120.2 | O1—C22—H22A | 109.5 |
O4—C4—C5 | 123.97 (16) | O1—C22—H22B | 109.5 |
O4—C4—C3 | 115.52 (15) | H22A—C22—H22B | 109.5 |
C5—C4—C3 | 120.51 (14) | O1—C22—H22C | 109.5 |
C14—C15—C16 | 120.28 (16) | H22A—C22—H22C | 109.5 |
C14—C15—H15 | 119.9 | H22B—C22—H22C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···N4 | 0.93 | 2.38 | 2.960 (2) | 120 |
C12—H12···N2i | 0.93 | 2.59 | 3.359 (2) | 141 |
C19—H19A···N1ii | 0.96 | 2.60 | 3.477 (3) | 152 |
C9—H9A···Cg1iii | 0.97 | 2.79 | 3.616 (2) | 143 |
C11—H11A···Cg2iv | 0.93 | 2.83 | 3.703 (2) | 158 |
C15—H15···Cg1v | 0.93 | 2.70 | 3.514 (2) | 147 |
C22—H22C···Cg2vi | 0.96 | 2.94 | 3.747 (2) | 143 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x+1/2, y−1/2, −z+3/2; (iii) x−1, y, z; (iv) x−1, y−1, z; (v) −x+3/2, y+1/2, −z+1/2; (vi) −x+1, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C22H24N4O4S |
Mr | 440.51 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 7.9414 (12), 15.043 (2), 19.047 (3) |
β (°) | 100.385 (6) |
V (Å3) | 2238.1 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.18 |
Crystal size (mm) | 0.36 × 0.30 × 0.26 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.936, 0.956 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 23323, 3929, 3354 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.103, 1.07 |
No. of reflections | 3929 |
No. of parameters | 281 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.35, −0.20 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···N4 | 0.93 | 2.38 | 2.960 (2) | 120.0 |
C12—H12···N2i | 0.93 | 2.59 | 3.359 (2) | 141.0 |
C19—H19A···N1ii | 0.96 | 2.60 | 3.477 (3) | 152.0 |
C9—H9A···Cg1iii | 0.97 | 2.79 | 3.616 (2) | 143 |
C11—H11A···Cg2iv | 0.93 | 2.83 | 3.703 (2) | 158 |
C15—H15···Cg1v | 0.93 | 2.70 | 3.514 (2) | 147 |
C22—H22C···Cg2vi | 0.96 | 2.94 | 3.747 (2) | 143 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x+1/2, y−1/2, −z+3/2; (iii) x−1, y, z; (iv) x−1, y−1, z; (v) −x+3/2, y+1/2, −z+1/2; (vi) −x+1, −y+1, −z. |
Acknowledgements
The authors acknowledge the National Key Project for International Cooperation in Science and Technology (grant No. 2005DFA30650) and the National Natural Science Foundation of China (No. 20872021) for supporting this work.
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.
Triazole derivatives are of great interest in medicinal chemistry in relation to antibacterial bioactivities (Bekircan & Gumrukcuoglu, 2005; Ewiss et al., 1986; Ikizler et al., 1998). However, to date, only a few reports have been dedicated to the synthesis and antimicrobial activity evaluation of triazole derivatives with a 3,4,5-trimethoxyphenyl substituent. Herein, we want to report on the synthesis and structure such a compound, (E)-4-(4-methoxybenzylideneamino)-5-(3,4,5-trimethoxyphenyl)-4H-1,2,4-triazole-3-thiol.
The molecule of the title compound (Fig. 1), exists in an E configuration with respect to the C12=N4 double bond [1.278 (2) Å] with a N3–N4–C12–C13 torsion angle of 179.08 (13)°. The whole molecule is not planar as the dihedral angles between the triazole ring and the two phenyl rings are 25.3 (2)° and 113.8 (2)°, respectively. There is one weak intramolecular C–H···N hydrogen bond between C1 and N4 (Table 1).
In the crystal structure (Fig. 3), two neighboring molecules are linked by weak C12—H12···N2 intermolecular interactions into a centrosymmetric R22(12) ring motif (Bernstein et al., 1995) with two parallel trizole rings with a centroid-centroid separation of 3.650 (1) Å between them (Fig. 2). Moreover, an intermolecular C-H···N hydrogen bond (C19—H19A···N1) is also observed. The molecular packing is further stabilized by C—H···π interactions (Table 1, Cg1 and Cg2 are the centroids of the C1–C6 and C13–C18 rings, respectively).