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Synthesis, Characterization and pH Metric Study of Some Novel Metal Complexes

M. V. Hathi, K. B. Vyas, K. S. Nimavat and G. R. Jani

The novel metal complexes of first transition metal ions with chromene derivative as ligands have been synthesized and characterized by elemental analysis. Formation of ML2 type metal complexes have been established from pH measurements on the interaction of M (II) ions [M = Mn, Cu, Ni, Co] with ligand 3-[{3-(9’-anthryl)}-prop-2-enoyl]-4-hydroxy-6-methyl-2H-chromen-2-one in the presence of an electrolyte (0.2M) at constant temperature 30º ± 1º C by Irving –Rossotti titration technique. Various factors influencing the formation and stability of metal complexes have been discussed