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

该奖项支持阿克伦大学的David S. Perry教授和一名研究生与位于瑞士洛桑的瑞士联邦理工学院分子物理化学实验室的T. R. Rizzo教授及其研究小组在化学研究方面的合作。他们建议研究能量在甲醇分子内的再分配。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，通过各种方法检查三个不同的频率区域。具体来说，基本区域将在阿克伦通过直接吸收光谱进行研究，而高泛音区域将在洛桑通过红外辅助光碎片光谱进行研究。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。振动和旋转能量的重新分配已知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扰动，然后表现为特征态的团块，最后表现为不可分解的密集轮廓。这项合作将研究一个特定的系统，甲醇，在广泛的能量和时间尺度上，以提高对该范围的分析反应的理解和辨别。

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.