organic compounds
4-[(E)-(3-Methyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-4-yl)iminomethyl]benzonitrile
aOrdered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China
*Correspondence e-mail: zhaohong@seu.edu.cn
In the title compound, C11H9N5S, the dihedral angle between the mean planes of the thione-substituted triazole ring and benzonitrile ring is 4.28 (3)°. Intermolecular N—H⋯S hydrogen bonds link the molecules together into characteristic dimers.
Related literature
For the application of benzotriazole compounds in industry, see: Sharma & Bahel (1982); Grasso (1988); Eweiss et al. (1986); Awad et al. (1991); Pillard et al. (2001). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; 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/S1600536808017613/rn2041sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808017613/rn2041Isup2.hkl
A mixture of 4-amino-3-methanyl-1H-1,2,4-triazole-5(4H)- thione (0.02 mol) and 4-formylbenzonitrile (0.02 mol) was refluxed at 391 K for 20 min in methanol. The mixture was then filtered and crystallized from ethanol to afford the target material (yield 89%). Single crystals suitable for X-ray measurements were obtained by recrystallization from ethanol at room temperature.
H atoms were calculated geometrically, with C—H distances in the range 0.93 to 0.97Å and an N—H distance of 0.86 Å, and refined using a riding model, with Uiso(H) =1.5Ueq(C) for methyl H atoms and 1.2Ueq(C,N) for the other H atoms.
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); 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).C11H9N5S | Z = 2 |
Mr = 243.29 | F(000) = 252 |
Triclinic, P1 | Dx = 1.371 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.975 (2) Å | Cell parameters from 1492 reflections |
b = 7.682 (2) Å | θ = 3.0–27.4° |
c = 11.412 (2) Å | µ = 0.26 mm−1 |
α = 90.262 (7)° | T = 293 K |
β = 94.328 (14)° | Block, colorless |
γ = 104.713 (17)° | 0.70 × 0.50 × 0.50 mm |
V = 589.5 (3) Å3 |
Rigaku Mercury2 diffractometer | 2659 independent reflections |
Radiation source: fine-focus sealed tube | 2178 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.5°, θmin = 3.2° |
CCD_Profile_fitting scans | h = −9→9 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −9→9 |
Tmin = 0.854, Tmax = 0.901 | l = −14→14 |
5954 measured reflections |
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)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0532P)2 + 0.1343P] where P = (Fo2 + 2Fc2)/3 |
2659 reflections | (Δ/σ)max = 0.002 |
155 parameters | Δρmax = 0.18 e Å−3 |
0 restraints | Δρmin = −0.21 e Å−3 |
C11H9N5S | γ = 104.713 (17)° |
Mr = 243.29 | V = 589.5 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.975 (2) Å | Mo Kα radiation |
b = 7.682 (2) Å | µ = 0.26 mm−1 |
c = 11.412 (2) Å | T = 293 K |
α = 90.262 (7)° | 0.70 × 0.50 × 0.50 mm |
β = 94.328 (14)° |
Rigaku Mercury2 diffractometer | 2659 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 2178 reflections with I > 2σ(I) |
Tmin = 0.854, Tmax = 0.901 | Rint = 0.022 |
5954 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.18 e Å−3 |
2659 reflections | Δρmin = −0.21 e Å−3 |
155 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 | ||
C1 | 0.2635 (2) | 1.3033 (2) | 0.27180 (13) | 0.0379 (3) | |
C2 | 0.1665 (3) | 1.0264 (2) | 0.18636 (14) | 0.0439 (4) | |
C3 | 0.1029 (4) | 0.8280 (3) | 0.17603 (17) | 0.0617 (5) | |
H3A | 0.0629 | 0.7922 | 0.0953 | 0.093* | |
H3B | −0.0070 | 0.7840 | 0.2230 | 0.093* | |
H3C | 0.2115 | 0.7789 | 0.2030 | 0.093* | |
C4 | 0.2745 (2) | 1.1001 (2) | 0.49268 (13) | 0.0400 (4) | |
H4 | 0.3196 | 1.2248 | 0.4992 | 0.048* | |
C5 | 0.2738 (2) | 0.9871 (2) | 0.59672 (13) | 0.0371 (3) | |
C6 | 0.3299 (3) | 1.0685 (2) | 0.70682 (14) | 0.0487 (4) | |
H6 | 0.3678 | 1.1934 | 0.7142 | 0.058* | |
C7 | 0.3300 (3) | 0.9654 (3) | 0.80588 (15) | 0.0539 (5) | |
H7 | 0.3652 | 1.0206 | 0.8798 | 0.065* | |
C8 | 0.2773 (3) | 0.7799 (2) | 0.79417 (15) | 0.0476 (4) | |
C9 | 0.2227 (3) | 0.6970 (2) | 0.68453 (16) | 0.0514 (4) | |
H9 | 0.1879 | 0.5721 | 0.6772 | 0.062* | |
C10 | 0.2200 (3) | 0.8001 (2) | 0.58632 (15) | 0.0461 (4) | |
H10 | 0.1821 | 0.7445 | 0.5127 | 0.055* | |
C11 | 0.2800 (3) | 0.6704 (3) | 0.89609 (17) | 0.0601 (5) | |
N1 | 0.21505 (19) | 1.11995 (17) | 0.29285 (10) | 0.0362 (3) | |
N2 | 0.1847 (2) | 1.1369 (2) | 0.10000 (12) | 0.0524 (4) | |
N3 | 0.2429 (2) | 1.3038 (2) | 0.15394 (12) | 0.0485 (4) | |
H3D | 0.2647 | 1.4017 | 0.1151 | 0.058* | |
N4 | 0.2117 (2) | 1.02188 (17) | 0.39419 (11) | 0.0385 (3) | |
N5 | 0.2817 (3) | 0.5822 (3) | 0.97577 (16) | 0.0811 (6) | |
S1 | 0.32744 (8) | 1.48037 (6) | 0.36283 (4) | 0.05691 (18) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0412 (8) | 0.0381 (8) | 0.0336 (8) | 0.0090 (6) | 0.0012 (6) | 0.0115 (6) |
C2 | 0.0541 (10) | 0.0461 (9) | 0.0328 (8) | 0.0162 (7) | −0.0013 (7) | 0.0027 (6) |
C3 | 0.0905 (15) | 0.0456 (10) | 0.0494 (11) | 0.0217 (10) | −0.0072 (10) | −0.0044 (8) |
C4 | 0.0457 (9) | 0.0390 (8) | 0.0350 (8) | 0.0100 (7) | 0.0031 (6) | 0.0111 (6) |
C5 | 0.0366 (8) | 0.0433 (8) | 0.0325 (7) | 0.0115 (6) | 0.0048 (6) | 0.0131 (6) |
C6 | 0.0612 (11) | 0.0433 (9) | 0.0377 (8) | 0.0070 (8) | 0.0003 (7) | 0.0109 (7) |
C7 | 0.0647 (11) | 0.0623 (11) | 0.0325 (8) | 0.0130 (9) | 0.0007 (7) | 0.0134 (8) |
C8 | 0.0463 (9) | 0.0592 (11) | 0.0412 (9) | 0.0186 (8) | 0.0096 (7) | 0.0259 (8) |
C9 | 0.0628 (11) | 0.0426 (9) | 0.0525 (10) | 0.0180 (8) | 0.0112 (8) | 0.0191 (8) |
C10 | 0.0576 (10) | 0.0443 (9) | 0.0382 (9) | 0.0160 (8) | 0.0048 (7) | 0.0102 (7) |
C11 | 0.0646 (12) | 0.0709 (13) | 0.0517 (11) | 0.0264 (10) | 0.0144 (9) | 0.0305 (10) |
N1 | 0.0438 (7) | 0.0370 (7) | 0.0279 (6) | 0.0105 (5) | 0.0016 (5) | 0.0089 (5) |
N2 | 0.0719 (10) | 0.0542 (9) | 0.0308 (7) | 0.0172 (8) | −0.0013 (6) | 0.0065 (6) |
N3 | 0.0652 (9) | 0.0451 (8) | 0.0328 (7) | 0.0103 (7) | 0.0016 (6) | 0.0154 (6) |
N4 | 0.0465 (7) | 0.0389 (7) | 0.0312 (6) | 0.0125 (6) | 0.0041 (5) | 0.0136 (5) |
N5 | 0.1056 (16) | 0.0881 (14) | 0.0603 (11) | 0.0394 (12) | 0.0213 (10) | 0.0456 (10) |
S1 | 0.0794 (4) | 0.0363 (2) | 0.0488 (3) | 0.0070 (2) | −0.0080 (2) | 0.00552 (19) |
C1—N3 | 1.3420 (19) | C6—C7 | 1.383 (2) |
C1—N1 | 1.3887 (19) | C6—H6 | 0.9300 |
C1—S1 | 1.6546 (17) | C7—C8 | 1.382 (3) |
C2—N2 | 1.296 (2) | C7—H7 | 0.9300 |
C2—N1 | 1.384 (2) | C8—C9 | 1.383 (3) |
C2—C3 | 1.477 (2) | C8—C11 | 1.440 (2) |
C3—H3A | 0.9600 | C9—C10 | 1.377 (2) |
C3—H3B | 0.9600 | C9—H9 | 0.9300 |
C3—H3C | 0.9600 | C10—H10 | 0.9300 |
C4—N4 | 1.266 (2) | C11—N5 | 1.137 (2) |
C4—C5 | 1.4735 (19) | N1—N4 | 1.3815 (16) |
C4—H4 | 0.9300 | N2—N3 | 1.371 (2) |
C5—C6 | 1.384 (2) | N3—H3D | 0.8600 |
C5—C10 | 1.391 (2) | ||
N3—C1—N1 | 101.52 (13) | C8—C7—C6 | 119.51 (17) |
N3—C1—S1 | 127.16 (12) | C8—C7—H7 | 120.2 |
N1—C1—S1 | 131.32 (11) | C6—C7—H7 | 120.2 |
N2—C2—N1 | 110.55 (15) | C7—C8—C9 | 120.50 (15) |
N2—C2—C3 | 126.08 (16) | C7—C8—C11 | 120.31 (18) |
N1—C2—C3 | 123.37 (15) | C9—C8—C11 | 119.20 (18) |
C2—C3—H3A | 109.5 | C10—C9—C8 | 119.79 (17) |
C2—C3—H3B | 109.5 | C10—C9—H9 | 120.1 |
H3A—C3—H3B | 109.5 | C8—C9—H9 | 120.1 |
C2—C3—H3C | 109.5 | C9—C10—C5 | 120.33 (16) |
H3A—C3—H3C | 109.5 | C9—C10—H10 | 119.8 |
H3B—C3—H3C | 109.5 | C5—C10—H10 | 119.8 |
N4—C4—C5 | 117.83 (15) | N5—C11—C8 | 179.2 (2) |
N4—C4—H4 | 121.1 | N4—N1—C2 | 118.04 (13) |
C5—C4—H4 | 121.1 | N4—N1—C1 | 133.14 (13) |
C6—C5—C10 | 119.33 (14) | C2—N1—C1 | 108.80 (13) |
C6—C5—C4 | 119.41 (15) | C2—N2—N3 | 104.07 (13) |
C10—C5—C4 | 121.26 (14) | C1—N3—N2 | 115.04 (13) |
C7—C6—C5 | 120.52 (17) | C1—N3—H3D | 122.5 |
C7—C6—H6 | 119.7 | N2—N3—H3D | 122.5 |
C5—C6—H6 | 119.7 | C4—N4—N1 | 120.55 (13) |
N4—C4—C5—C6 | −176.05 (15) | C3—C2—N1—N4 | 2.8 (2) |
N4—C4—C5—C10 | 4.7 (2) | N2—C2—N1—C1 | 1.31 (19) |
C10—C5—C6—C7 | −0.9 (3) | C3—C2—N1—C1 | −178.55 (17) |
C4—C5—C6—C7 | 179.80 (16) | N3—C1—N1—N4 | 177.34 (15) |
C5—C6—C7—C8 | 1.3 (3) | S1—C1—N1—N4 | −3.4 (3) |
C6—C7—C8—C9 | −0.7 (3) | N3—C1—N1—C2 | −0.99 (17) |
C6—C7—C8—C11 | 178.86 (17) | S1—C1—N1—C2 | 178.25 (13) |
C7—C8—C9—C10 | −0.3 (3) | N1—C2—N2—N3 | −0.99 (19) |
C11—C8—C9—C10 | −179.81 (17) | C3—C2—N2—N3 | 178.87 (18) |
C8—C9—C10—C5 | 0.6 (3) | N1—C1—N3—N2 | 0.42 (19) |
C6—C5—C10—C9 | −0.1 (3) | S1—C1—N3—N2 | −178.87 (13) |
C4—C5—C10—C9 | 179.22 (16) | C2—N2—N3—C1 | 0.3 (2) |
C7—C8—C11—N5 | −176 (100) | C5—C4—N4—N1 | −177.73 (12) |
C9—C8—C11—N5 | 4 (17) | C2—N1—N4—C4 | 172.61 (15) |
N2—C2—N1—N4 | −177.30 (14) | C1—N1—N4—C4 | −5.6 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3D···N5i | 0.86 | 2.11 | 2.934 (2) | 162 |
Symmetry code: (i) x, y+1, z−1. |
Experimental details
Crystal data | |
Chemical formula | C11H9N5S |
Mr | 243.29 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 6.975 (2), 7.682 (2), 11.412 (2) |
α, β, γ (°) | 90.262 (7), 94.328 (14), 104.713 (17) |
V (Å3) | 589.5 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.26 |
Crystal size (mm) | 0.70 × 0.50 × 0.50 |
Data collection | |
Diffractometer | Rigaku Mercury2 diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.854, 0.901 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5954, 2659, 2178 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.115, 1.05 |
No. of reflections | 2659 |
No. of parameters | 155 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.18, −0.21 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3D···N5i | 0.86 | 2.11 | 2.934 (2) | 161.7 |
Symmetry code: (i) x, y+1, z−1. |
Acknowledgements
This work was supported by a Start-up Grant from SEU to Professor Ren-Gen Xiong.
References
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It has been found that 1,2,4-thiadiazoles possess a broad spectrum of biological activities and can be widely used as fungicides (Sharma & Bahel, 1982) and insecticides (Grasso, 1988). In addition, amine- and thione-substituted triazoles have been studied as anti-inflammatory and antimicrobial agents (Eweiss et al., 1986; Awad et al., 1991). Benzotriazole and its derivatives comprise an important class of corrosion inhibitors, typically used as trace additives in industrial chemical mixtures, such as coolants, cutting fluids and hydraulic fluids (Pillard et al., 2001). We present its crystal structure here. The molecule exists in the thione tautomeric form, with an S···C distance of 1.6752 (3) A °, which indicates substantial double-bond character for this bond [1.671 (24) A °, Allen et al., 1987]. The dihedral angle between thione-substituted triazole ring and benzonitrile ring is 4.28 (3) °. N-H···N hydrogen bonds are observed in the crystal structure which link the molecules into dimers.