Synthesis and characterization of a new dinuclear platinum(II) alkynyl complex with a ferrocene bridge and its interaction with silver ion

A new dinuclear alkynyl platinum(II) complex with a ferrocene (Fc) bridge (Pt(II)–Fc–Pt(II)), referred as Sensor 1(1), was synthesized and characterized. The photophysical, luminescent and cation-binding properties were studied by UV–Vis spectrophotometric, fluorometric, 1H NMR titration methods, and the ESI-MS. Sensor 1 showed a significant luminescent quenching in the presence of silver ions (Ag+).