Luminescent properties of metal alkynyls and their functions

Abstract

In this presentation, various design and synthetic strategies together with the successful isolation of a series of luminescent alkynyl complexes of selected metals will be described. The luminescence properties of the complexes have been studied and their emission origin elucidated. Correlations of the luminescence behaviour with the electronic and structural effects of the metal complexes have also been made. Different approaches and assembly motifs have been employed to tune the electronic absorption and emission characteristics of these metal complexes based on an understanding of their spectroscopic origins. The luminescence properties of some of these metal alkynyl complexes have also been studied in various media including in polymer matrices. Subtle changes in the microenvironment have been found to lead to drastic changes in both the electronic absorption and emission properties. Through rational design and assembly strategies, these metal alkynyls may serve as ideal building blocks for the design and construction of luminescent molecular rods and materials as well as may find potential applications and functions as triplet light-emitting materials and chemosensors.