Synthesis and characterization of some Schiff bases, their metal complexes and thermal, antimicrobial and catalytic features

Two pyridine carboxaldehyde-derived schiff bases and their copper, nickel and manganese complexes have been synthesized, characterized by spectroscopic and thermal analyses. For the antimicrobial activity experiments, the microorganisms B. megaterium, K. pneumoniae, E. coli, P. aeruginasa, S. aureus, B. subtilis and E. aerogenes have been used. Nickel and copper complex compounds of ligand L-2 were recorded as the most effective coordination compounds as antimicrobial. Catalytic activity results revealed that the both manganese and nickel complexes were moderately more effective for the oxidation reactions of cyclohexene and styrene.