Synthesis, characterization and chelating properties of ligand containing heterocyclic azo dyes

The 5-((5-phenyl-1,3,4-oxadiazol-2-yl)diazenyl)quinolin-8-ol (DAPOHQ) was prepared by Diazotization reaction of diazonium salt of 2-Amino-5-phenyl-[1,3,4]-Oxadiazole (APO) and 8-hyroxyquinolinol (HQ).The novel ligand was characterized by elemental analysis and spectral studies. The transition metal chelates viz. Cu2+, Ni2+ , Co2+ , Mn2+ and Zn2+ of DAPOHQ were prepared and characterized by metal-ligand (M:L) ratio, IR and reflectance spectroscopies and magnetic properties. The antifungal activity of DAPOHQ and its metal chelates was examined against various fungi.

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