High Resolution Molecular Beam Spectroscopy and Model Potential Energy Surfaces

在这个项目中的物理化学计划的 化学部，约翰·穆恩特教授的大学 罗切斯特将研究弱结合的货车德瓦尔斯复合物， 一些光谱学方法， 分子间势能 包括在实验中 是分子束电共振研究超精细和 隧道劈裂，新乙炔的红外激光研究 系统扩展到乙烯，脉冲激光研究， 将高分辨率参数的确定扩展到 单体物质的激发电子态。 有一个 理论部分，旨在扩展和测试Muenter的 分子间相互作用势的简单模型 极化率项 %%% 单个分子之间的力影响着 从气相动力学到体内生物化学。 在 近年来，高分辨率分子束光谱学已经 通过观察分子间的相互作用， 和弱束缚簇分子的性质。 这些 由两个或多个稳定的分子结合在一起组成 通过弱键，包含大量关于 控制着宇宙内部运动的力和能量 配合物 该计划结合了一个理论模型， 用一个实验的方法来描述这些力和能量 一个旨在收集数据以验证和完善 该模型

In this project in the Physical Chemistry Program of the Chemistry Division, Professor John Muenter of the University of Rochester will study weakly bound van der Waals complexes using a number of spectroscopic methods with the intent of exploring intermolecular potential energies. Included in the experiments are molecular beam electric resonance studies of hyperfine and tunneling splittings, infrared laser studies of new acetylene systems with extension to ethylene, and pulsed laser studies to extend the determination of high resolution parameters to excited electronic states of monomeric species. There is a theoretical component which aims to extend and test Muenter's simple model for intermolecular potentials by adding polarizability terms. %%% The forces between individual molecules affect every aspect of chemistry, from gas phase kinetics to in vivo biochemistry. In recent years, high resolution molecular beam spectroscopy has studied intermolecular interactions by observing the structure and properties of weakly bound cluster molecules. These species, made up of two or more stable molecules held together by weak bonds, contain considerable information about the forces and energies which govern the motions within the complexes. This program combines a theoretical model for describing these forces and energies with an experimental program which aims at gathering data to validate and refine this model.