U.S.-Swiss Cooperative Research on Spectroscopy and Energy Redistribution in Methanol

美国-瑞士关于甲醇光谱学和能量再分配的合作研究

• 批准号: 9602537
• 负责人: David Perry
• 金额: $ 2.29万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9602537&HistoricalAwards=false
• 关键词: U.S.; Swiss; Cooperative; Research; Spectroscopy

This award supports Professor David S. Perry and a graduate student of the University of Akron to collaborate in chemistry research with Professor T. R. Rizzo and his research group at the Molecular Physical Chemistry Laboratory of the Swiss Federal Institute of Technology in Lausanne, Switzerland. They propose to study energy redistribution within energized methanol molecules. They will examine three different frequency regions by various methods which take advantage of complementary expertise and equipment within the collaborating US and Swiss research groups. Specifically, the fundamental regions will be studied by direct absorption spectroscopies in Akron, and the higher overtone regions will be studied by infrared- assisted photofragment spectroscopy in Lausanne. The nature and quantity of reagent vibrational energy has long been recognized as a crucial factor in controlling chemical reactivity. Redistribution of vibrational and rotational energy is known to occur on several timescales. As energy is increased, the relevant interactions appear first as discrete perturbations, then as clumps of eigenstates, and finally as unresolvably dense contours. This collaboration will study a particular system, methanol, over a wide range of energies and time scales, in order to improve understanding and discrimination of that range of analytical responses.

这个奖项支持教授大卫S。佩里和阿克伦大学的一名研究生与T. R.瑞士洛桑瑞士联邦理工学院分子物理化学实验室的里佐和他的研究小组。 他们建议研究通电甲醇分子内的能量再分配。 他们将利用美国和瑞士合作研究小组的互补专业知识和设备，通过各种方法研究三个不同的频率区域。 具体地说，基本区域将在阿克伦通过直接吸收光谱法进行研究，而更高的泛音区域将在洛桑通过红外辅助光碎片光谱法进行研究。 试剂振动能的性质和数量一直被认为是控制化学反应性的关键因素。 已知振动能和转动能的重新分布发生在几个时间尺度上。 随着能量的增加，相关的相互作用首先表现为离散的微扰，然后表现为本征态的团块，最后表现为无法分辨的稠密轮廓。 这项合作将在广泛的能量和时间尺度上研究一个特定的系统（甲醇），以提高对该范围分析响应的理解和区分。