Synthesis, characterization and fungitoxicity of manganese(II), iron(II), cobalt(II), nickel(II), copper(II) and zinc(II) complexes of N-phenyl-5-phenyl-1,3,4oxadiazole-2-sulphonamide and 5-phenyl1,3,4-oxadiazole-2-imino sulphonamide

Abstract

The metal chelates of N-phenyl-5-phenyl-1,3,4-oxadiazole-2-sulphonamide, (PPOS) with Mn(II), Fe(Il), Co(III), Ni(II), Cu(II) and Zn(III) have been synthesised and characterized on the basis of analytical, conductance; magnetic and spectroscopic techniques. Co(II) and Zn(II) chelates exhibited fungicidal activity of the order of Dithane M-45 at 1000 ppm against <i>Aspergillus niger</i> and <i>Fusarium oxysporum</i>.