Synthesis, Characterization and Antimicrobial Activities of Some Mixed-Ligand Complexes

The reaction of metal chlorides with salicylaldimine or 5-bromosalicylaldehyde in 1: 2 molar ratio, yields [M(H2O)2(Sal-I)2] or [M(H2O)2 (BrSal)2], respectively, [I] Further reaction of [I] with 2,2′-bipyridylamine in alcohol yields mixed-ligand complexes of the type [M(Sal-I)2 Bipy. amine] H2O or [M(BrSal)2-Bipy. amine] H2O, respectively. All of these complexes are soluble in ethanol and methanol. They were characterized by elemental analyses, magnetic measurements, infrared spectra, electronic spectra, thermogravimetric analyses and antimicrobial activity.