Jet Spectroscopy and Photophysics of Reactive Molecules

在化学部门实验物理化学项目的这个项目中，Clouthier将继续研究超音速膨胀中高反应中间体的电子能谱。他的实验工作将由光谱参数的从头计算来补充。选择用于检测的体系包括碳烯及其锗类似物（例如，GeF2或HGeCl）以及HCOCN和PO2。在过去，Clouthier在开发热解射流和脉冲放电射流源方面发挥了重要作用，并利用它们产生和分析了这些瞬态物质的光谱。建立灵敏的检测和表征反应物质的方法对于优化工业工艺是很重要的。研究工业系统中反应性分子最有用的分析方法是那些可以在原位应用的分析方法。该项目中应用的光谱工具，特别是激光诱导荧光，是非常敏感的方法，用于检测参与燃烧或化学气相沉积等过程的瞬态化学物质，这些化学物质用于半导体制造。

In this project in the Experimental Physical Chemistry Program of the Chemistry Division, Clouthier will continue to study the electronic spectroscopy of highly reactive intermediates in supersonic expansions. His experimental work will be supplemented by ab initio calculations of spectroscopic parameters. Systems chosen for examination include carbenes and their germanium analogs (e.g., GeF2 or HGeCl) as well as HCOCN and PO2. In the past Clouthier has been instrumental in developing pyrolysis jet and pulsed discharge jet sources and using them to produce and analyze spectra of such transient species. %%% It is important to establish sensitive methods for detecting and characterizing reactive species in order to optimize industrial processes. The most useful analytical methods for studying reactive molecules in industrial systems are those that can be applied in situ. The spectroscopic tools applied in this project, laser-induced fluorescence in particular, are very sensitive methods for detecting the transient chemical species which participate in such processes as combustion or chemical vapor deposition, which is used in the manufacture of semiconductors.