N. Sabbatini et al., LUMINESCENCE OF EU3-BIPYRIDINE AND 9-METHYL-1,10-PHENANTHROLINE SUBUNITS( AND TB3+ COMPLEXES OF A NOVEL BRANCHED MACROCYCLIC LIGAND CONTAINING 2,2'), New journal of chemistry, 17(5), 1993, pp. 323-324
Complexes of the Eu3+ and Tb3+ ions with a novel branched macrocyclic
ligand containing 2,2'-bipyridine and 9-methyl-1,10-phenanthroline sub
units have been synthesized and their photophysical properties have be
en studied. Interestingly, the presence of phenanthroline subunits in
the branches gives rise to enhanced electronic absorption and increase
d stability in water.