Copper heterobinuclear complexes

THE DETERMINATION OF COPPER MICROAMOUNTS ON THE TERBIUM LUMINESCENCE SENSITIZED BY IT IN HETEROBINUCLEAR COMPLEX... 

The La-M heterobinuclear complexes noted LaxM(fsa)2en,N03.H20 were synthesized according to the methods previously described using nickel or copper acetates (Aldrich, 98%), lanthanum nitrate (Janssen, 98%) and N,N -Bis(3-carboxysalicydene)ethylene diamine (noted (fsa)2en) as a ligand ([5], [6], [7]). M (Ni2+ or Cu " ") was introduced at first in sodium carbonate medium, whereas La was complexed in a second step in Li0H/CH30H medium. 

Elemental Analyses showed important differences in the stoichiometry of the heterobinuclear complexes depending at first on the metal used, nickel or copper (table I). 

Daniele PG, Ostacoli G, Zerbinati O, Sammartano S, De Robertis A (1988) Mixed metal complexes in solution. Thermodynamic and spectrophotometric study of copper(U)-citrate heterobinuclear complexes with nickel(II), zinc(II) or cadmium(II) in aqueous solution. Transit Met Chem 13 87-91... 

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