Self-assembly Of Cyclometalated Platinum(?) Complexes Toward Optically Functional Materials

The interactions between smaller components and their autonomous organization(self-assembly)into larger and more complex systems are the most fascinating,yet ubiquitous phenomenon that occur at all levels:from the extremely large,such as galaxies,to the extremely small entities,such as molecules.With the extensive works in supramolecular chemistry,especially after the award of the Nobel Prize to Lehn,Cram,and Pedersen in 1987 of supramolecular self-assemblies,much attention has been drawn toward the self-assembly of small organic molecules.On the other hand,the self-assemblies of transition metal complexes have been relatively less explored.In recent years,a blossoming interest in the synthesis,photophysics and application of phosphorescent Pt(?)complexes,has been witnessed.The versatility in the coordination modes of square planar Pt(?)complex systems has enabled the high tendency towards stacking into rich structures and topologies.More remarkably,the availability of a range of excited states has enriched these complexes with interesting luminescence properties.This dissertation,consisting of four parts,will mainly focus on light-emitting self-assembly systems of Pt(?)complexes with the utilization of multiple non-covalent bonds,including donor-acceptor,metal-metal and solvophobic interactions.On this basis,the in-depth understanding on the photophysics of metal complexes,structure-property relationship of supramolecular self-assemblies and their further uses in photocatalysis,light-harvesting and phosphorescent light-emitting materials,are achieved.