Visual self-assembly and stimuli-responsive materials based on recent phosphorescent platinum(ii) complexes

Abstract

Platinum(II) complexes with various π-conjugated ligands have received great attention thanks to their exceptional spectroscopic properties and applications in optical devices, chemical sensors, and bio-imaging. Their unique square-planar structures and coordinate-unsaturation characteristics induce the propensity to form self-assembled phosphorescent materials through metal–metal, π–π stacking, and other intermolecular interactions. In this review, we mainly describe the photophysical properties and structure–property relationships of multi-chelating platinum(II) complexes as well as the construction and application of phosphorescent supramolecular materials in recent years.