LUMINESCENCE OF EU3+ AND TB3+ COMPLEXES OF A NOVEL BRANCHED MACROCYCLIC LIGAND CONTAINING 2,2'-BIPYRIDINE AND 9-METHYL-1,10-PHENANTHROLINE SUBUNITS

Complexes of the Eu3+ and Tb3+ ions with a novel branched macrocyclic ligand containing 2,2'-bipyridine and 9-methyl-1,10-phenanthroline subunits have been synthesized and their photophysical properties have been studied. Interestingly, the presence of phenanthroline subunits in the branches gives rise to enhanced electronic absorption and increased stability in water.