Photochemistry and Chemistry of Gas-Phase Negative Ions

有机动力学计划的这笔赠款支持 理查德·N博士的工作堪萨斯州立大学的麦克唐纳 大学 这项工作将提供一个更好的理解 带负电荷的气体的化学行为 由有机、无机和有机金属形成的离子 分子。 麦克唐纳博士将进行的实验将 提供两个主要光化学反应途径的资料 对于带负电荷的离子：电子光分离（至 产生中性物质加上电子），以及配体 光解（产生两个片段，一个中性， 一个带负电荷）。 可调谐染料激光器将用于 产生激发态离子， 在流动的余辉中形成的带电离子将被监测 通过质谱。 麦克唐纳博士将使用选定的离子 流管（SIFT）技术与原 研究金属化学反应性的技术 团簇离子

This grant from the Organic Dynamics Program supports the continuing work of Dr. Richard N. McDonald at Kansas State University. This work will provide an improved understanding of the chemical behavior in the gas phase of negatively charged ions formed from organic, inorganic, and organometallic molecules. The experiments that will be carried out by Dr. McDonald will afford information on two major photochemical reaction pathways for negatively charged ions: electron photodetachment (to produce a neutral species plus an electron), and ligand photodissociation (to produce two fragments, one neutral and one negatively charged). A tunable dye laser will be used to generate the excited-state ions, and the different negatively charged ions formed in the flowing afterglow will be monitored by mass spectroscopy. Dr. McDonald will utilize selected ion flow tube (SIFT) technology in tandem with the original technique to investigate the chemical reactivity of metal cluster ions.