Spectroscopy and Dynamics of Ions

在化学部门实验物理化学项目的这个项目中，W. Carl Lineberger将研究分子离子的结构和动力学，包括分离的和与已知数量的溶剂分子聚集的，重点是三碳碳氢化合物和过渡金属聚集体。将获得碳氢化合物基本自由基的键强度，研究瞬态中间体的重排和过渡态，并获得小金属团簇电子结构的定量信息。将发展超快激光技术，以获得部分完成溶剂壳的离子反应过程的实时动态信息。这项研究将利用两个超快激光器来引发和探测微溶剂中的化学反应。这些研究的目标之一是增加对驱动最简单化学转化过程的定量理解。通过研究被分离的和被溶剂包围的分子的化学转化，林因伯格将能够证明不同的溶剂对反应性的影响以及对这些反应进行的速率的影响。

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.