organic compounds
4,4′-[(1,3,4-Thiadiazole-2,5-diyl)bis(thiomethylene)]dibenzonitrile
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
The title molecule, C18H12N4S3, consists of three essentially planar fragments, viz. two methyl-substituted benzonitrile rings and a substituted thiadiazole ring. The dihedral angles between the substituted benzonitrile rings and the central thiadiazole ring are 28.29 (10) and 78.83 (6)°, and the dihedral angle between the two benzonitrile rings is 72.89 (7)°.
Related literature
For related literature, see: Tarafder et al., (2000); El-Shekeil et al. (1988); Jinxia et al. (2003).
Experimental
Crystal data
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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/S1600536808022848/fl2207sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808022848/fl2207Isup2.hkl
A dry 50 ml flask was charged with 1,3,4-thiadiazole-2,5-dithiol (10 mmol), 4-(bromomethyl)benzonitrile (20 mmol), K2CO3(10 mmol), and methanol (30 mL). The mixture was stirred with refluxing for 4 h and then was poured into water (40 ml), the precipitate was washed with water for 2–3 times and purified by recrystallization from methanol to give the crystals of the target material.
All the C—H hydrogen atoms were calculated geometrically and were allowed to ride on the C atoms to which they are bonded, with acyclic C—H distances ranging as 0.97 Å, phenyl C—H distances ranging as 0.93 Å, and with Uiso(H) = 1.2Ueq(C).
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).C18H12N4S3 | F(000) = 784 |
Mr = 380.50 | Dx = 1.428 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 12716 reflections |
a = 7.6974 (15) Å | θ = 3.3–27.3° |
b = 8.4375 (17) Å | µ = 0.43 mm−1 |
c = 27.272 (6) Å | T = 293 K |
β = 92.53 (3)° | Prism, colorless |
V = 1769.5 (6) Å3 | 0.45 × 0.40 × 0.30 mm |
Z = 4 |
Rigaku Mercury2 diffractometer | 4028 independent reflections |
Radiation source: fine-focus sealed tube | 2754 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.043 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.5°, θmin = 3.0° |
CCD_Profile_fitting scans | h = −9→9 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −10→10 |
Tmin = 0.814, Tmax = 0.903 | l = −35→35 |
15327 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)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0435P)2 + 0.4638P] where P = (Fo2 + 2Fc2)/3 |
4028 reflections | (Δ/σ)max < 0.001 |
226 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.25 e Å−3 |
C18H12N4S3 | V = 1769.5 (6) Å3 |
Mr = 380.50 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.6974 (15) Å | µ = 0.43 mm−1 |
b = 8.4375 (17) Å | T = 293 K |
c = 27.272 (6) Å | 0.45 × 0.40 × 0.30 mm |
β = 92.53 (3)° |
Rigaku Mercury2 diffractometer | 4028 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 2754 reflections with I > 2σ(I) |
Tmin = 0.814, Tmax = 0.903 | Rint = 0.043 |
15327 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.20 e Å−3 |
4028 reflections | Δρmin = −0.25 e Å−3 |
226 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 | 0.6555 (3) | 0.3789 (3) | 0.34124 (8) | 0.0469 (5) | |
C2 | 0.9214 (3) | 0.3764 (3) | 0.38800 (8) | 0.0476 (6) | |
C3 | 0.4395 (3) | 0.2503 (3) | 0.27094 (10) | 0.0619 (7) | |
H3A | 0.5357 | 0.2535 | 0.2491 | 0.074* | |
H3B | 0.4455 | 0.1514 | 0.2891 | 0.074* | |
C4 | 0.2700 (3) | 0.2614 (3) | 0.24188 (9) | 0.0494 (6) | |
C5 | 0.1254 (3) | 0.1815 (3) | 0.25715 (10) | 0.0681 (8) | |
H5 | 0.1344 | 0.1193 | 0.2853 | 0.082* | |
C6 | −0.0313 (3) | 0.1926 (3) | 0.23136 (10) | 0.0675 (8) | |
H6 | −0.1277 | 0.1379 | 0.2419 | 0.081* | |
C7 | −0.0448 (3) | 0.2853 (3) | 0.18983 (8) | 0.0463 (5) | |
C8 | 0.0971 (3) | 0.3662 (3) | 0.17434 (8) | 0.0504 (6) | |
H8 | 0.0873 | 0.4293 | 0.1464 | 0.060* | |
C9 | 0.2533 (3) | 0.3540 (3) | 0.20014 (9) | 0.0521 (6) | |
H9 | 0.3494 | 0.4087 | 0.1894 | 0.062* | |
C10 | −0.2123 (3) | 0.3038 (3) | 0.16434 (9) | 0.0576 (7) | |
C11 | 1.2030 (3) | 0.2210 (3) | 0.42467 (10) | 0.0602 (7) | |
H11A | 1.1265 | 0.1432 | 0.4386 | 0.072* | |
H11B | 1.2195 | 0.1920 | 0.3908 | 0.072* | |
C12 | 1.3756 (3) | 0.2188 (3) | 0.45268 (8) | 0.0489 (6) | |
C13 | 1.4027 (3) | 0.2929 (3) | 0.49739 (9) | 0.0571 (6) | |
H13 | 1.3126 | 0.3500 | 0.5106 | 0.068* | |
C14 | 1.5604 (3) | 0.2838 (3) | 0.52286 (9) | 0.0568 (6) | |
H14 | 1.5767 | 0.3346 | 0.5530 | 0.068* | |
C15 | 1.6945 (3) | 0.1987 (3) | 0.50351 (9) | 0.0486 (6) | |
C16 | 1.6682 (3) | 0.1221 (3) | 0.45909 (9) | 0.0563 (6) | |
H16 | 1.7575 | 0.0631 | 0.4462 | 0.068* | |
C17 | 1.5102 (3) | 0.1328 (3) | 0.43390 (9) | 0.0553 (6) | |
H17 | 1.4936 | 0.0815 | 0.4039 | 0.066* | |
C18 | 1.8610 (3) | 0.1876 (3) | 0.52986 (9) | 0.0558 (6) | |
N1 | 0.7442 (3) | 0.2519 (3) | 0.33425 (8) | 0.0576 (5) | |
N2 | 0.9002 (3) | 0.2507 (2) | 0.36166 (8) | 0.0573 (5) | |
N3 | −0.3451 (3) | 0.3216 (4) | 0.14549 (9) | 0.0848 (8) | |
N4 | 1.9930 (3) | 0.1766 (3) | 0.54989 (9) | 0.0740 (7) | |
S1 | 0.75230 (9) | 0.51067 (8) | 0.38233 (2) | 0.0594 (2) | |
S2 | 0.45247 (8) | 0.41683 (8) | 0.31298 (2) | 0.0595 (2) | |
S3 | 1.10283 (9) | 0.41341 (8) | 0.42665 (3) | 0.0642 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0514 (13) | 0.0435 (13) | 0.0451 (13) | −0.0003 (11) | −0.0051 (10) | −0.0021 (10) |
C2 | 0.0521 (14) | 0.0403 (13) | 0.0499 (13) | −0.0007 (11) | −0.0046 (10) | 0.0007 (10) |
C3 | 0.0557 (15) | 0.0595 (16) | 0.0689 (17) | 0.0079 (13) | −0.0167 (12) | −0.0152 (13) |
C4 | 0.0475 (13) | 0.0459 (14) | 0.0540 (14) | 0.0037 (11) | −0.0076 (11) | −0.0056 (11) |
C5 | 0.0654 (17) | 0.0724 (19) | 0.0653 (17) | −0.0093 (15) | −0.0122 (14) | 0.0269 (14) |
C6 | 0.0509 (15) | 0.081 (2) | 0.0694 (18) | −0.0132 (14) | −0.0042 (13) | 0.0272 (15) |
C7 | 0.0423 (13) | 0.0497 (14) | 0.0463 (13) | 0.0028 (11) | −0.0039 (10) | −0.0007 (10) |
C8 | 0.0535 (14) | 0.0511 (14) | 0.0464 (13) | −0.0022 (12) | −0.0002 (11) | 0.0072 (11) |
C9 | 0.0470 (14) | 0.0515 (15) | 0.0577 (15) | −0.0082 (12) | 0.0031 (11) | −0.0010 (12) |
C10 | 0.0511 (16) | 0.0691 (18) | 0.0523 (15) | 0.0021 (14) | 0.0005 (12) | 0.0068 (13) |
C11 | 0.0546 (15) | 0.0506 (15) | 0.0741 (17) | −0.0006 (12) | −0.0122 (13) | −0.0093 (13) |
C12 | 0.0502 (14) | 0.0396 (13) | 0.0561 (15) | −0.0038 (11) | −0.0052 (11) | 0.0033 (11) |
C13 | 0.0517 (14) | 0.0607 (16) | 0.0584 (15) | 0.0103 (13) | −0.0014 (12) | −0.0096 (13) |
C14 | 0.0565 (15) | 0.0585 (16) | 0.0547 (15) | 0.0084 (13) | −0.0059 (12) | −0.0061 (12) |
C15 | 0.0464 (13) | 0.0427 (13) | 0.0564 (15) | −0.0002 (11) | −0.0037 (11) | 0.0103 (11) |
C16 | 0.0526 (15) | 0.0525 (15) | 0.0640 (16) | 0.0085 (12) | 0.0038 (12) | 0.0001 (13) |
C17 | 0.0603 (16) | 0.0527 (15) | 0.0526 (15) | 0.0027 (13) | −0.0019 (12) | −0.0080 (12) |
C18 | 0.0553 (16) | 0.0512 (15) | 0.0607 (16) | 0.0061 (13) | 0.0001 (12) | 0.0081 (12) |
N1 | 0.0526 (12) | 0.0538 (13) | 0.0648 (13) | 0.0076 (10) | −0.0160 (10) | −0.0139 (10) |
N2 | 0.0525 (12) | 0.0532 (13) | 0.0647 (13) | 0.0061 (10) | −0.0147 (10) | −0.0131 (10) |
N3 | 0.0503 (14) | 0.126 (2) | 0.0771 (17) | 0.0071 (15) | −0.0094 (12) | 0.0204 (16) |
N4 | 0.0572 (14) | 0.0870 (18) | 0.0765 (16) | 0.0146 (13) | −0.0119 (12) | 0.0068 (13) |
S1 | 0.0657 (4) | 0.0441 (4) | 0.0664 (4) | 0.0074 (3) | −0.0187 (3) | −0.0101 (3) |
S2 | 0.0572 (4) | 0.0556 (4) | 0.0640 (4) | 0.0118 (3) | −0.0159 (3) | −0.0095 (3) |
S3 | 0.0646 (4) | 0.0468 (4) | 0.0786 (5) | 0.0012 (3) | −0.0278 (3) | −0.0094 (3) |
C1—N1 | 1.289 (3) | C9—H9 | 0.9300 |
C1—S1 | 1.725 (2) | C10—N3 | 1.134 (3) |
C1—S2 | 1.742 (2) | C11—C12 | 1.503 (3) |
C2—N2 | 1.287 (3) | C11—S3 | 1.799 (3) |
C2—S1 | 1.727 (2) | C11—H11A | 0.9700 |
C2—S3 | 1.740 (2) | C11—H11B | 0.9700 |
C3—C4 | 1.499 (3) | C12—C13 | 1.378 (3) |
C3—S2 | 1.814 (2) | C12—C17 | 1.382 (3) |
C3—H3A | 0.9700 | C13—C14 | 1.374 (3) |
C3—H3B | 0.9700 | C13—H13 | 0.9300 |
C4—C5 | 1.381 (3) | C14—C15 | 1.381 (3) |
C4—C9 | 1.382 (3) | C14—H14 | 0.9300 |
C5—C6 | 1.372 (3) | C15—C16 | 1.380 (3) |
C5—H5 | 0.9300 | C15—C18 | 1.445 (3) |
C6—C7 | 1.376 (3) | C16—C17 | 1.373 (3) |
C6—H6 | 0.9300 | C16—H16 | 0.9300 |
C7—C8 | 1.371 (3) | C17—H17 | 0.9300 |
C7—C10 | 1.446 (3) | C18—N4 | 1.136 (3) |
C8—C9 | 1.370 (3) | N1—N2 | 1.386 (3) |
C8—H8 | 0.9300 | ||
N1—C1—S1 | 114.56 (17) | C12—C11—S3 | 111.49 (17) |
N1—C1—S2 | 123.94 (18) | C12—C11—H11A | 109.3 |
S1—C1—S2 | 121.49 (14) | S3—C11—H11A | 109.3 |
N2—C2—S1 | 114.47 (17) | C12—C11—H11B | 109.3 |
N2—C2—S3 | 124.36 (18) | S3—C11—H11B | 109.3 |
S1—C2—S3 | 121.18 (14) | H11A—C11—H11B | 108.0 |
C4—C3—S2 | 107.93 (16) | C13—C12—C17 | 118.7 (2) |
C4—C3—H3A | 110.1 | C13—C12—C11 | 122.7 (2) |
S2—C3—H3A | 110.1 | C17—C12—C11 | 118.6 (2) |
C4—C3—H3B | 110.1 | C14—C13—C12 | 121.2 (2) |
S2—C3—H3B | 110.1 | C14—C13—H13 | 119.4 |
H3A—C3—H3B | 108.4 | C12—C13—H13 | 119.4 |
C5—C4—C9 | 118.5 (2) | C13—C14—C15 | 119.6 (2) |
C5—C4—C3 | 120.3 (2) | C13—C14—H14 | 120.2 |
C9—C4—C3 | 121.2 (2) | C15—C14—H14 | 120.2 |
C6—C5—C4 | 120.9 (2) | C16—C15—C14 | 119.7 (2) |
C6—C5—H5 | 119.6 | C16—C15—C18 | 119.9 (2) |
C4—C5—H5 | 119.6 | C14—C15—C18 | 120.4 (2) |
C5—C6—C7 | 119.6 (2) | C17—C16—C15 | 120.0 (2) |
C5—C6—H6 | 120.2 | C17—C16—H16 | 120.0 |
C7—C6—H6 | 120.2 | C15—C16—H16 | 120.0 |
C8—C7—C6 | 120.3 (2) | C16—C17—C12 | 120.7 (2) |
C8—C7—C10 | 120.2 (2) | C16—C17—H17 | 119.6 |
C6—C7—C10 | 119.4 (2) | C12—C17—H17 | 119.6 |
C9—C8—C7 | 119.8 (2) | N4—C18—C15 | 178.6 (3) |
C9—C8—H8 | 120.1 | C1—N1—N2 | 112.22 (19) |
C7—C8—H8 | 120.1 | C2—N2—N1 | 112.35 (19) |
C8—C9—C4 | 120.9 (2) | C1—S1—C2 | 86.40 (12) |
C8—C9—H9 | 119.5 | C1—S2—C3 | 99.23 (11) |
C4—C9—H9 | 119.5 | C2—S3—C11 | 98.82 (11) |
N3—C10—C7 | 177.8 (3) |
Experimental details
Crystal data | |
Chemical formula | C18H12N4S3 |
Mr | 380.50 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 7.6974 (15), 8.4375 (17), 27.272 (6) |
β (°) | 92.53 (3) |
V (Å3) | 1769.5 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.43 |
Crystal size (mm) | 0.45 × 0.40 × 0.30 |
Data collection | |
Diffractometer | Rigaku Mercury2 diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.814, 0.903 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15327, 4028, 2754 |
Rint | 0.043 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.115, 1.05 |
No. of reflections | 4028 |
No. of parameters | 226 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.25 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
This work was supported by a Start-up Grant from Southeast University to HZ.
References
El-Shekeil, A., Babaqi, A., Hassan, M. A. & Sheba, S. (1988). Heterocycles, 27, 2577–2580. CAS Google Scholar
Jinxia, L., Zhan, H. & Zhou, Y. (2003). Electrochem. Commun. 5, 555–560. Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Tarafder, M. T. H., Azahari, K., Crouse, K. A., Yamin, B. M., Sundara Raj, S. S., Ibrahim, A. R. & Fun, H.-K. (2000). Z. Kristallogr. New Cryst. Struct. 215, 487–488. CAS Google Scholar
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1,3,4-thiadiazole-2,5-dithiol and its derivatives are interesting compounds that have attracted the attention of researchers because of their wide range of applications in many fields, such as the determination of trace elements, the synthesis of novel heterocyclic compounds with antimicrobial activity(El-Shekeil et al. 1988), advanced materials, and battery cathodes (Jinxia et al.2003, Tarafder et al., (2000)). In this paper, we report the structure of one such derviative, the title compound (I).
In (I, Fig. 1) all bond lengths and angles are normal. There are three planar fragments in the molecule, viz. the central S1—S2—S3—C1—C2—N1—N2 plane with C1 farthest out at (0.0077 (19) Å) and the two benzonitrile systems C11—C18 and N4 with C11 farthest out at 0.0280 (19) Å) and C3—C19 and N3 with N3 farthest out at 0.0738 (21) Å. The dihedral angles between the central substituted ring and benzonitrile systems are 28.29 (10)° and 78.83 (6)° and 72.89 (7)° between the two benzonitrile moieties. There is no evidence of typical hydrogenn bonding or intermolecular π–π interactions. Only van-der-waals interactions are observed in the crystal is packing (Fig.2).