Spectroscopy and Dynamics of Ions

离子的光谱学和动力学

• 批准号: 9318639
• 负责人: William Lineberger
• 金额: $ 93.1万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-02-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9318639&HistoricalAwards=false
• 关键词: Spectroscopy; Dynamics; Ions

In this project in the Experimental Physical Chemistry program of the Chemistry Division, W. Carl Lineberger will study the structure and dynamics of molecular ions, both isolated and aggregated with known numbers of solvent molecules, with emphasis on three-carbon hydrocarbons and transition metal aggregates. Bond strengths of fundamental hydrocarbon radicals will be obtained, rearrangements and transition states for transient intermediates will be investigated, and quantitative information on the electronic structure of small metal clusters will be obtained. Ultrafast laser technologies will be developed to obtain real-time dynamic information on reactive processes in ions with partially completed solvent shells. This research will utilize two ultrafast lasers to initiate and probe chemical reactions in a microsolvent. One goal of these studies is to increase the quantitative understanding of the processes driving the simplest chemical transformations. By studying the chemical transformations of molecules which are both isolated as well as surrounded by solvent species, Lineberger will be able to demonstrate the effect that different solvents have on reactivity as well as on the rates at which these reactions proceed.

在这个项目中的实验物理化学计划的 化学部，W。卡尔·莱恩伯格将研究结构， 分子离子的动力学，无论是孤立的还是聚集的， 溶剂分子的数量，重点是三碳烃 和过渡金属聚集体。 基本键强度 烃自由基将获得，重排和过渡 瞬态中间体的状态将被调查，和定量 关于小金属簇的电子结构的信息将被 得到了 将开发超快激光技术， 离子反应过程的实时动态信息， 部分完成的溶剂壳。 本研究将利用两个 用超快激光引发和探测 微溶剂 这些研究的一个目标是增加定量的理解， 最简单的化学变化的过程。 通过 研究分子的化学转变， 隔离以及周围的溶剂物种，Lineberger将是 能够证明不同溶剂对反应性的影响 以及这些反应进行的速率。