Novel complexes of Co (11), Ni (11) and Fe (111) with aspirin and
paracetamol have synthesized and characterized using infrared,
electronic and Hnmr spectral, melting point and conductivity
measurements. The two ligands have been found to act as bidentate
chelating agents. Aspirin complexes coordinate through the carbonyl
oxygen of the carboxyl and the ester groups, while paracetamol
complexes coordinate through the oxygen of the hydroxyl and the amide
groups. Antibacterial screening of the complexes against Bacillus
substilis , serratia species and Escherichia coli , was also
investigated. The metal complexes were found to have varied degree of
inhibitory effect against the bacteria