BIOLOGICAL AND CATALYTIC ACTIVITY OF MIXED LIGAND TRANSITION METAL COMPLEXES

A new series of Cr(III), Mn(II), Fe(II), Fe(III), Co(II), Ni(II) and Zn(II) ternary complexes derived from lornoxicam and1,10-phenanthroline (Phen) have been synthesized.The two ligands, in comparison to ternary metal complexes are screened for their antimicrobial and anticancer activity. The results showed that the metal complexes be more active than the parent LOR ligand but less active than 1,10-phenanthroline free ligand. The Co(II) and Cu(II) metal complexes completely missed anticancer activity. Similarly Chiral mixed ligand (CML) metal complexes are synthesized. The CMLCo(II)/Ni(II) complexes, synthesized and characterized in the present work, have been used as catalysts decomposition of hydrogen peroxide. The study on catalytic decomposition of hydrogen peroxide deals with the use of these complexes as two different types of catalysts i.e. heterogeneous and homogeneous catalysts heterogenisedon alumina. It has been observed that complexes adsorbed on alumina (heterogenized) are better catalysts as compared to non-adsorbed complexes (heterogeneous catalysts).