Applications of State Resolved Reaction Dynamics

在实验物理化学计划的项目中，堪萨斯州立大学的Donald Setser将研究燃烧和大气化学中重要的相种的状态分解动力学和动力学。各种光谱方法将用于制备反应物和观察产物状态分布。红外化学发光将用于研究原子-自由基和自由基-自由基反应的产物，确定反应机理，并确定总速率常数。电子发射和激光诱导荧光将用于研究双光子激光辅助反应生成稀有气体卤化物分子的机理和状态分布。这些研究将比较稀释气体混合物中碰撞产生的产物的状态分布与在制备的范德华分子中反应得到的产物的状态分布。这些研究的结果将用动力学模型来解释，这些模型已经为某些类型的气相反应发展起来，所获得的见解将用于理解更复杂的反应系统。自由基是高活性的，通常不稳定的分子，高浓度存在于高能化学反应器中，如燃烧系统。自由基的反应在臭氧层消耗和全球变暖的机制中也很重要。Setser教授的研究将提供有关这些机制中涉及的基本反应的信息，以及这些反应产生的物质的性质和能量含量。

In the project in the Experimental Physical Chemistry Program, Donald Setser of Kansas State University will study state-resolved dynamics and kinetics of phase species important in combustion and atmospheric chemistry. Various spectroscopic methods will be used to prepare reactants and observe product state distributions. Infrared chemiluminescence will be used to study products from atom-radical and radical-radical reactions, identify mechanisms, and determine overall rate constants. Electronic emission and laser induced fluorescence will be used to study the mechanism and state distributions of rare gas halide molecules produced by two-photon laser assisted reactions. These studies will compare the state distributions of products resulting from collisions in dilute gas mixtures with those obtained from reactions within a prepared van der Waals molecule. The results of these investigations will be interpreted in terms of dynamical models which have been developed for certain types of gas phase reactions and the insights obtained will be used to understand more complex reactive systems. Radicals are highly reactive, usually unstable molecules which are present in high concentration in energetic chemical reactors such as combustion systems. Reactions of radicals are also important in the mechanisms responsible for the depletion of the ozone layer and global warming. Professor Setser's investigations will provide information about the elementary reactions involved in these mechanisms, and the nature and energy content of the species produced by these reactions.