Reactant State Effects and Product Energy Disposal in Polyatomic Ion Chemistry

在实验物理化学计划的这个项目中，犹他大学的Scott Anderson将使用反应物振动模式选择和高分辨率离子束技术研究简单多原子离子的反应动力学。将要研究的系统包括水离子与氢、一氧化碳和水分子的反应，以及氧化亚氮离子与一氧化碳分子的反应。这些研究将包括脉冲场电离技术的发展，以产生反应离子的振动状态选择性。这项工作将促进对反应机制的振动模式依赖的理解，以及反应物能量分配到产物状态的方式。这项工作有望为这些系统的进一步理论工作提供基准。反应物分子中振动能的数量和性质可以引起化学反应中不同产物相对数量的巨大变化。安德森教授的工作将决定这种振动能量如何影响几种离子分子反应的产物。这项工作的结果将提供控制化学反应的方法的信息，以产生单一的产品，排除其他不需要的产品。

In this project in the Experimental Physical Chemistry Program, Scott Anderson of the University of Utah will study the reaction dynamics of simple polyatomic ions using reactant vibrational mode selection and high resolution ion beam techniques. Systems which will be investigated include the reactions of water ions with hydrogen, carbon monoxide, and water molecules, and the reaction of nitrous oxide ions with carbon monoxide molecules. These studies will include the development of pulsed field ionization techniques to produce vibrational state selectivity in the reactant ions. This work will advance the understanding of the vibrational mode dependence of reaction mechanisms, and the manner in which reactant energy is partitioned into product states. This work is expected to provide benchmarks for further theoretical work on these systems. The amount and nature of vibrational energy in a reactant molecule can cause dramatic changes in the relative amounts of different products of chemical reactions. Professor Anderson's work will determine how this vibrational energy will affect the products of several ion molecule reactions. The results of this work will provide information on methods of controlling chemical reactions to produce a single product to the exclusion of other unwanted products.