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The crystal structure of the title compound 3 (4 Chloro 3 ethyl 1 methyl 1H pyrazol 5 yl) 6 (E)phenylvinyltriazolo[3,4 b] 1,3,4 thiadiazole (C 17 H 15 ClN 6S, M r =370.87) was determined by single crystal X ray diffraction. The crystal is monoclinic, space group P2 1/n , a=10.862(2), b=11.541(2), c=14^994(3), β=108.41(3)°, V=1783(1), Z=4, D x =1.381 g/cm -3 , μ =0.3361 mm -1 , and F (000)=768. The results confirmed that the title compound belongs to type E of stereochemistry. The dihedral angle between triazole and 1,3,4 thiadiaole ring is 3° and the torsion angle between 1,3,4 thiadiazole and pyrazole ring is 134.0°.
The crystal structure of the title compound 3 (4 Chloro 3 ethyl 1 methyl 1H pyrazol 5 yl) 6 (E) phenylvinyltriazolo [3,4 b] 1,3,4 thiadiazole (C 17 H 15 ClN 6S, M r = 370.87) was determined by single crystal X-ray diffraction. The crystal is monoclinic, space group P2 1 / n, a = 10.862 (2), b = 11.541 (2), c = (3) °, V = 1783 (1) , Z = 4, D x = 1.381 g / cm -3, μ = 0.3361 mm -1, and F (000) = 768. The results confirmed that the title compound belongs to type E of stereochemistry. The dihedral angle between triazole and 1,3,4 thiadiaole ring is 3 ° and the torsion angle between 1,3,4 thiadiazole and pyrazole ring is 134.0 °.