A New Lamellar Gold Thiolate Coordination Polymer, [Au(<em>m</em>-SPhCO<sub>2</sub>H)]<sub>n</sub>, for the Formation of Luminescent Polymer Composites
Oleksandra Veselska,
Nathalie Guillou,
Gilles Ledoux,
Chia-Ching Huang,
Katerina Dohnalova Newell,
Erik Elkaïm,
Alexandra Fateeva,
Aude Demessence
Affiliations
Oleksandra Veselska
Univ Lyon, Université Claude Bernard Lyon 1, Institut de Recherches sur la Catalyse et l’Environnement de Lyon (IRCELYON), UMR CNRS 5256, 69626 Villeurbanne, France
Nathalie Guillou
Institut Lavoisier de Versailles (ILV), UVSQ, Université Paris-Saclay, UMR CNRS 8180, 78035 Versailles, France
Gilles Ledoux
Univ Lyon, Université Claude Bernard Lyon 1, Institut Lumière Matière (ILM), UMR CNRS 5306, 69626 Villeurbanne, France
Chia-Ching Huang
Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
Katerina Dohnalova Newell
Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
Erik Elkaïm
Beamline Cristal, Synchrotron Soleil, 91192 Gif-sur-Yvette, France
Alexandra Fateeva
Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces (LMI), UMR CNRS 5615, 69626 Villeurbanne, France
Aude Demessence
Univ Lyon, Université Claude Bernard Lyon 1, Institut de Recherches sur la Catalyse et l’Environnement de Lyon (IRCELYON), UMR CNRS 5256, 69626 Villeurbanne, France
The photoluminescence of gold thiolate clusters brings about many potential applications, but its origin is still elusive because of its complexity. A strategy in understanding the structure–properties relationship is to study closely related neutral gold thiolate coordination polymers (CPs). Here, a new CP is reported, [Au(m-SPhCO2H)]n. Its structure is lamellar with an inorganic layer made of Au–S–Au–S helical chains, similar to the [Au(p-SPhCO2H)]n analog. An in-depth study of its photophysical properties revealed that it is a bright yellow phosphorescent emitter with a band centered at 615 nm and a quantum yield (QY) of 19% at room temperature and in a solid state. More importantly, a comparison to the para-analog, which has a weak emission, displayed a strong effect of the position of the electron withdrawing group (EWG) on the luminescent properties. In addition, [Au(m-SPhCO2H)]n CPs were mixed with organic polymers to generate transparent and flexible luminescent thin films. The ability to tune the emission position with the appropriate contents makes these nontoxic polymer composites promising materials for lighting devices.
