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The compound 3,6-bis(4-methyl-1,2,3-thiadiazol-5-yl)-1,2,4-triazolo[3,4-b][1,3,4] thiadiazole(C9H6N8S3,Mr = 322.40) has been synthesized by the reaction of 4-amino-3-(4-methyl-1,2,3-thiadiazolyl)-5-mercapto-1,2,4-triazole with 4-methyl-1,2,3-thiadiazol-5-carboxylic acid and phosphorus oxychloride,and its structure was characterized by IR,1H NMR,EI-MS,elemental analysis and single-crystal X-ray diffraction.The crystal of the title compound belongs to monoclinic,space group C2/c with a = 2.0053(4),b = 1.3081(3),c = 1.0556(2) nm,β = 112.69(3)°,Z = 4,V = 2.5548(9) nm3,Dc = 1.676 g/cm3,μ = 0.582 mm-1,F(000) = 1312,R = 0.0546 and wR = 0.1523.X-ray analysis indicates that all rings are essentially planar in this molecule,and an intermolecular hydrogen bond C(9)-H(9)…N(2) and weak intramolecular interactions between S(1)…N(7),S(3)…N(1) and S(2)…N(4) are observed.
The compound 3,6-bis (4-methyl-1,2,3-thiadiazol-5-yl) -1,2,4-triazolo [3,4- b] [1,3,4] thiadiazole (C9H6N8S3, Mr = 322.40) has been synthesized by the reaction of 4-amino-3- (4-methyl-1,2,3-thiadiazolyl) -5-mercapto-1,2,4-triazole with 4-methyl-1,2 , 3-thiadiazol-5-carboxylic acid and phosphorus oxychloride, and its structure was characterized by IR, 1H NMR, EI-MS, elemental analysis and single-crystal X-ray diffraction. The crystal of the title compound belongs to monoclinic, space group C2 / c with a = 2.0053 4, b = 1.3081 3, c = 1.0556 2 nm, β = 112.69 (3) °, Z = 4, V = 2.5548 (9) nm3, Dc = 1.676 ray diffraction analysis showed that all rings are essentially planar in this molecule, and an intermolecular hydrogen bond C (9) - H (9) ... N (2) and weak intramolecular interactions between S (1) ... N (7), S (3) ... N