Abstract
Homotrimetallic Cu(II), Co(II), Ni(II) and Fe(III) Complexes of N-'1, N-'2, N-'3-triphenylpropane-1,2,3-tricarbohydrazide were prepared and analytically and spectroscopically characterized. The ligand was found to be acted as neutral or tribasic hexadentate N3O3 ligand bonded covalency or coordinationally via the carbonyl oxygen of carboxylate moieties in ketonic or enolic and amino nitrogen atoms. Distorted octahedral, tetrahedral or square planar geometries around the metal ions were proved by magnetic and electronic spectra measurements. The antimicrobial screening tests by Well diffusion method revealed that all complexes are biologically more active than the parent ligand and they are more active against Fungus A. niger than bacteria E. coli and K. pneumonia.