The metal ion binding properties of three photoactive poly-(arylene ethynylene) co-polymers with potentially complexing units have been described. Upon protonation or complexation, the intensity of the luminescence typical of these conjugated polymers is completely quenched, due to the extended electronic conjugation of the polymer backbones. In the case of the formation of complexes with Yb3+ and Er3+, one of the studied polymers gives rise to an efficient sensitization of their typical metal centred NIR emission. This feature is of particular interest for the preparation of new materials that are the subject of active research for their possible applications in optical imaging and in optical amplification for telecommunication purposes.
S. Bonacchi, L.S. Dolci, C. Lo Sterzo, A. Micozzi, M. Montalti, L. Prodi, et al. (2008). Metal ion binding of photoactive poly-(arylene ethynylene) co-Polymers. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. A, CHEMISTRY, 198, 237-241 [10.1016/j.jphotochem.2008.03.017].
Metal ion binding of photoactive poly-(arylene ethynylene) co-Polymers
BONACCHI, SARA;DOLCI, LUISA STELLA;MONTALTI, MARCO;PRODI, LUCA;ZACCHERONI, NELSI
2008
Abstract
The metal ion binding properties of three photoactive poly-(arylene ethynylene) co-polymers with potentially complexing units have been described. Upon protonation or complexation, the intensity of the luminescence typical of these conjugated polymers is completely quenched, due to the extended electronic conjugation of the polymer backbones. In the case of the formation of complexes with Yb3+ and Er3+, one of the studied polymers gives rise to an efficient sensitization of their typical metal centred NIR emission. This feature is of particular interest for the preparation of new materials that are the subject of active research for their possible applications in optical imaging and in optical amplification for telecommunication purposes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
