Antibacterial screening of Ln3+ metal complexes with isonicotinic acid hydrazide

In this paper, three Ln3+ metal ion complexes have been prepared with isonicotinic acid hydrazide as chelating agent by using simple condensation method. After the completion of the synthesis, the complexes have been characterized on the basis of elemental analysis, conductivity measurements, magnetic properties and spectral analysis. The eight coordinated complexes of Pr3+ ion and seven coordinated complexes of Nd3+ and Sm3+ ions have been confirmed by the chromatography and spectral methods say infrared spectroscopy, nuclear magnetic resonance and electronic spectroscopy. After the characterization of the structure of the metal complexes, the antibacterial screening of all the complexes have been completedagainst bacterium Mycobacterium tuberculosis by disc diffusion method.