Synthesis, characterization and chelating properties of novel ligands

Reaction between 4-bromo phenyl acid hydrazide with 4-[N'-(1-Ethoxycarbonyl-2-oxo-propylidene)-hydrazino]-2- hydroxy-benzoic acid in ethanol furnishes 1-[4-bromo-benzoyl]-3-methyl-4-(4-carboxy-3-hydroxy-phen-4-ylhydrazono)- 2-pyrazoline-5-ones (BrH-ASA). The transition metal complexes of Cu2+, Co2+ ,Ni2+, Mn2+ and Zn2+ of BrH-ASA have been prepared and characterized by elemental analyses, spectral studies, magnetic moment determination, molar conductivity measurement and microbicidal activity

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