A new series of Cu(II), Pt(II) and Pd(II) complexes were prepared with ligand 2-((2- (hydroxyimino)-1-phenylpropylidene) Hydrazono)-1, 2- diphenylethanone (HMPPH) corresponding to molecular formula (C23H18N3O2) has been synthesized and reported for the first time. The Schiff base and its metal complexes were characterized on the basis of various spectroscopic investigation like IR, NMR, UVVISIBLE spectroscopy, elemental analysis etc. While the geometry of the complexes was confirmed by electronic spectra, magnetic moment measurements. A preliminary screening of these compounds for biological activity against various microorganisms has indicated that they are microbial active against some microorganisms.

Keywords : Schiff base, Antimicrobial activity, Metal complexes, Ligand