Structural and fungicidal studies of transition metal complexes of substituted thiadiazole

Metal complexes of 3d series with 3-(4'-pyridyl)-6-phenyl amino-S-triazolo [3,4-b3]-1,3,4-thiadiazole (PATAT) have been prepared and characterised on the basis of analytical data and spectral studies. Mass spectrum of the ligand was also recorded. I.R. data showed bidentate chelating behaviour of the ligand coordinating through S-atom of the the thiadiazole ring and exocylic N of the amino group. Fungicidal activity of the ligand and metal complexes were also evaluated. The ligand as well as metal complexes showed significant activities.