Hydrothermal synthesis and luminescence of lanthanide complexes sensitized with dpphen

Three new coordination polymers, [Ln(dpphen)(L)(NO3)] (Ln=Tb(1), Eu(2), Nd(3), H2L=glutaric acid) were synthesized hydrothermally. Ln(III) ions are nine coordinated and the glutarate ligands bridge the Ln(III) to from 1D polymer chains. The complexes Tb(III) and Eu(III) exhibit strong green and red luminescence respectively. 111