Abstract

Mohammad Azim and Shamim Ahmad

Transition metal complexes containing bidentate O,O donor ligand, i.e. 3-[3-(4-chlorophenyl)-4-hydroxy-6-methyl-pyran 2-one derived from 3-acetyl-6-methyl-pyran-2,4(3H)-dione (dehydroacetic acid) and p-chlorobenzaldehyde,have been synthesized and characterized by elemental analyses, conductometry, thermal analysis, magnetic,IR, UV-Vis and fungicidal study. From the analytical and thermal data, the stoichiometry of the complexes has been found to be 1:2(metal : ligand). Octahedral geometries for all complexes are proposed except Pd(II),which is squareplanar. The Ligand and their metal complexes have been screened in vitro for their antifungal activities against Aspergillus flavus, Curvularia lunata and Pencillium notatum.

Chalcones; dehydroacetic acid; transition metal complexes; antifungal study

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