南强学术讲座
题目: From Discrete Metal-Ligand Motifs to Supramolecular Assembly, Nanostructures and Functions
讲座人: Prof. Vivian Wing-Wah YAM （任咏华）香港大学
时间: 2019年4月15日（周一）10:00-11:30
地点: 化学报告厅
摘要：
Recent works in our laboratory have shown that novel classes of light-absorbing and luminescent metal-containing molecular materials could be assembled through the use of various metal-ligand chromophoric building blocks. In this presentation, various design and synthetic strategies will be described. A number of these metal-ligand chromophoric complexes have been shown to display rich optical and luminescence behavior. Correlations of the chromophoric and luminescence behavior with the electronic and structural effects of the metal complexes have been made to elucidate their spectroscopic origins. These simple discrete metal-ligand motifs are found to undergo supramolecular assembly to give a variety of nanostructures and morphologies. By understanding the spectroscopic origin and the structure-property relationships, different approaches and assembly motifs have been employed to tune their electronic absorption and emission characteristics. Subtle changes in the microenvironment and nanostructured morphologies have led to drastic changes in both the electronic absorption and emission properties of these supramolecular assemblies. Explorations into the underlying factors that determine their spectroscopic properties and morphologies as well as their assembly mechanisms have provided new insights into the understanding of the interplay of the various intermolecular forces and interactions for the directed assembly of novel classes of metal-containing soft materials and hybrids. The exploration into the potential applications and functions of these metal-ligand chromophores and luminophores will also be described.
嘉宾简介：任咏华院士，无机化学家，香港大学化学系讲座教授、中国科学院院士（38岁当选），美国国家科学院外籍院士，发展中国家科学院院士。任咏华院士一直致力于无机化学、金属有机化学、超分子化学、光化学等基础研究，并在相关领域取得了丰硕的成果，受到了国际同行的广泛关注。她获得了中国国家自然科学奖二等奖，欧莱雅-教科文组织女科学家奖，英国皇家化学会百周年讲座奖 (全球首位华人获此荣誉)，世界杰出女科学家成就奖和何梁何利基金科学与技术奖等多项奖项。
biwn必赢
2019年4月1日
