| 报告题目: | Medium Matters: Dynamics of Molecules in a Confined Space | |
| 开始时间: | 2019-07-16 10:00:00 | |
| 报告地点: | 实验三楼102室 | |
| 报 告 人: | V. RAMAMURTHY，Department of Chemistry, University of Miami | |
| 主办单位: | 化学与分子工程学院 | |
| 备 注: | 报告内容： Similar restriction of freedom leads to selectivity in the chemical behaviormolecules embedded in biological systems. Extending these well-known concepts supramolecularchemists have established that even small molecules upon confinement in synthetichosts exhibit behaviour distinctly different from the ones in an isotropicsolution. In this lecture the role a “Medium” inbringing about changes in the well-established behaviour of excited moleculeswould be illustrated with select examples. Results of steady state andultrafast experiments will be presented that highlight how the confinementalters the excited state dynamics of stilbenes and azobenzenes, the moleculesthat act as triggers in various biological systems and man-made devices.Another reaction to be discussed concerns with electron transfer (eT) thatplays a fundamental role in a number of biological events including photosynthesis.Examples and ultrafast dynamics of donors, imprisoned within an organiccapsule, transferring an electron to an acceptor across a molecular wall wouldbe presented. The main message of the talk is thatmolecules like humans behave differently when confined within synthetic cages. | |
