Far Infrared Studies of Molecular Interactions

分子相互作用的远红外研究

• 批准号: 9213635
• 负责人: Kenneth Leopold
• 金额: $ 29.08万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-06-15 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9213635&HistoricalAwards=false
• 关键词: Far; Infrared; Studies; Molecular; Interactions

In this project in the Experimental Physical Chemistry Program Dr. Kenneth R. Leopold will use tunable, high-resolution tunable far infrared spectroscopy to study 1) potential energy surfaces and internal dynamics of weakly-bound complexes and 2) the dynamics of intramolecular proton transfer reactions. Work in the first area will focus on systems with multiple secondary potential minima and large amplitude vibrations. These are important as models for more general chemical complexes which exhibit competitive binding sites. In the second area intramolecular proton transfer dynamics will be investigated for the internally hydrogen bonded molecule molecule malonaldehyde. In particular, the tunneling splittings produced by the proton motion will be examined in the presence of a quantum of vibrational excitation in several of the skeletal vibrational modes of the molecule. %%% Hydrogen bonding and other weak intermolecular interactions are important because they can steer the course of many chemical reactions of vital technological and biological importance. It is therefore important to understand these interactions at a fundamental level. Dr. Leopold will add to this understanding by probing the strength and nature of intermoecular interactions using a special, high resolution infrared spectrometer constructed in his laboratory.

在实验物理化学计划中，肯尼斯·R·利奥波德（Kenneth R. 在第一个领域的工作将集中在具有多个次级电势最小值和较大振幅振动的系统上。 这些非常重要，是表现出竞争性结合位点的更通用化学复合物的模型。 在第二区域，将研究内部氢键分子丙二醛的分子内质子转移动力学。 特别是，将在分子的几种骨骼振动模式下，在存在量子振动的情况下，将检查由质子运动产生的隧穿分裂。 %%氢键合和其他弱分子间相互作用很重要，因为它们可以引导许多重要的技术和生物学重要性的化学反应过程。因此，重要的是要从基本层面了解这些相互作用。 Leopold博士将使用他的实验室中构建的特殊高分辨率红外光谱仪探测室内相互作用的强度和性质，从而增加了这种理解。