Optical and environmental control of excited state dynamics: electrocyclic ring-opening and molecular switches

激发态动力学的光学和环境控制：电环开环和分子开关

基本信息

批准号：
1150660
负责人：
Roseanne Sension
金额：
$ 50.28万
依托单位：
Regents of the University of Michigan - Ann Arbor
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2012
资助国家：
美国
起止时间：
2012-09-01 至 2016-02-29
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1150660&HistoricalAwards=false
关键词：
Optical environmental control excited state

项目摘要

In this award, funded by the Chemical Structure, Dynamics and Mechanisms Program of the Division of Chemistry, Professor Roseanne Sension of the University of Michigan along with her graduate students plan to use ultrafast spectroscopy to study the ring-opening reactions of systems central to a number of natural and synthetic photoswitches. Most of these systems contain a six-member ring that opens to form a helical chain-like molecule. In the work planned here the properties of light pulses, the nature of the environment, and the chemical substitution pattern around the ring will be used as parameters to understand the molecular and chemical basis for control of the ring-opening reactions. The investigations will also explore the way in which optical pulses may be sculpted to control the dynamics and thus the yield of the ring-opening reactions central to these photoswitches. This work exposes graduate and undergraduate students in physics and chemistry to state-of-the-art research in chemical physics and optical physics. The results of the research are integrated into the undergraduate physical chemistry curriculum through involvement of researchers in curriculum development and through the use of "molecular movies," simulations of molecular dynamics based on the results of ultrafast spectroscopic measurements, which connect macroscopic properties to the dynamics of chemical systems.

在该奖项中，由化学结构，动力学和机制计划资助，密歇根大学的Roseanne Sension教授以及她的研究生计划使用超快光谱学来研究系统中心的环反应，对许多自然和合成的照片开关中心。这些系统中的大多数包含一个六成员的环，该戒指打开以形成螺旋链样分子。在这里计划的工作中，光脉冲的特性，环境的性质以及环周围的化学取代模式将用作参数，以了解控制开环反应的分子和化学基础。该研究还将探索可以雕刻光脉冲以控制动力学的方式，从而探索核心旋转反应的产量，从而探索这些照片开关中心的开环反应的产量。这项工作使物理和化学的毕业生和本科生在化学物理和光学物理学领域进行了最先进的研究。通过研究人员参与课程开发和使用“分子电影”，基于超快光谱测量的结果，将研究人员参与课程开发和使用“分子电影”，将研究的结果整合到本科物理化学课程中。