Lanthanide complexes of polycarboxylate-bearing dipyrazolylpyridine ligands with near-unity luminescence quantum yields: the effect of pyridine substitution.
The title complexes displayed a marked dependence of their luminescence properties upon pyridine substitution. The ligand with the 4-carbamoyl-substituted pyridine showed a long-lived luminescence of near-unity quantum yield for Tb3- and quite reasonable values for Eu3+, Sm3+ and Dy3-, thus making it an excellent candidate for a luminescent probe to be attached to biomolecules by a peptide-like linkage.
Brunet
Ernesto
E
Departamento de Química Orgànica, Facultad de Ciencias, C-I. Universidad Autónoma de Madrid, 28049-Madrid, Spain. ernesto.brunet@uam.es
Juanes
Olga
O
Sedano
Rosa
R
Rodríguez-Ubis
Juan-Carlos
JC