Cyclometallated platinum(II) complexes containing pyridyl-acetylide ligands: the selective influence of lead binding on luminescence.
The design, synthesis, photophysical properties, and the ion-binding properties of cyclometallated platinum(II) complexes containing pyridyl-appended alkynyl ligands are described. When the pyridyl group is incorporated into an azamacrocycle, a specific response towards lead(II) cations involves a change in the nature of the excited charge transfer state, resulting in the appearance of a low-energy absorption band and a partial quenching of luminescence.
Lanoë
Pierre-Henri
PH
Sciences Chimiques de Rennes UMR 6226, CNRS-Université de Rennes 1, Avenue du Général Leclerc, 35042, Rennes Cedex France.
Le Bozec
Hubert
H
Williams
J A Gareth
JA
Fillaut
Jean-Luc
JL
Guerchais
Véronique
V