title: Cyclometallated platinum(II) complexes containing pyridyl-acetylide ligands: the selective influence of lead binding on luminescence.
abstract: 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.
authors.affiliation: Sciences Chimiques de Rennes UMR 6226, CNRS-Université de Rennes 1, Avenue du Général Leclerc, 35042, Rennes Cedex France.
authors.forename: Pierre-Henri
authors.initials: PH
authors.lastname: Lanoë
authors.forename: Hubert
authors.initials: H
authors.lastname: Le Bozec
authors.forename: J A Gareth
authors.initials: JA
authors.lastname: Williams
authors.forename: Jean-Luc
authors.initials: JL
authors.lastname: Fillaut
authors.forename: Véronique
authors.initials: V
authors.lastname: Guerchais