Time Domain Study of Coherence in Solvation and the Role of Solvent in Chemical Reactions

溶剂化相干性和溶剂在化学反应中的作用的时域研究

• 批准号: 9221000
• 负责人: Norbert Scherer
• 金额: $ 3.2万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-15 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221000&HistoricalAwards=false
• 关键词: Time; Domain; Study; Coherence; Solvation

This award is the starter grant increment of Dr. Scherer's Postdoctoral Fellowship in Chemistry. The research will develop two experimental methodologies. One is a general approach to creating phase-coherent pulse sequences. This will be the first optical analog of NMR pulse sequences. It will be used to examine the evolution of optical coherence on femtosecond timescales. The second methodology involves the direct probing of solvent responses to chemical reactions using new nonlinear spectroscopies. This involves the measurement of non-resonant solvent birefringence responses to chemical evolution during the course of a reaction. The purpose is to establish the frequencies and types of solvent motion that take place in dipolar solvation and photodissociation. %%% New methods will be developed for probing the detailed changes of structure and energy in molecules during reaction. These studies are important because they provide better understanding of how to control the outcome of chemical reactions. They may have wide application to health related and commercial chemical reactions.

该奖项是谢勒博士的启动补助金增量 化学博士后奖学金。这项研究将发展 两种实验方法。一个是一般的方法， 产生相位相干脉冲序列。这将是第一 NMR脉冲序列的光学模拟。它将用于 研究飞秒光相干性的演化 时间尺度。第二种方法涉及直接探测 溶剂对化学反应的响应，使用新的非线性 光谱学这涉及到非共振的测量 溶剂双折射对化学演化的响应 反应的过程目的是建立 溶剂运动的频率和类型， 偶极溶剂化和光解。 %%% 将开发新的方法来探测详细的变化 分子的结构和能量。这些 研究很重要，因为它们提供了更好的理解， 如何控制化学反应的结果。他们可能 广泛应用于与健康相关的商业化学品 反应.