Jet Spectroscopy and Photophysics of Reactive Molecules

在化学部实验物理化学计划的这个项目中，Clouthier将继续研究超音速膨胀中高活性中间体的电子光谱。他的实验工作将得到光谱参数从头计算的补充。选择进行检查的系统包括卡宾及其锗类似物(例如，GeF2或HGeCl2)以及HCOCN和PO2。在过去，Clouthier一直致力于开发热解喷射源和脉冲放电喷射源，并使用它们来产生和分析这些瞬变物种的光谱。%为了优化工业过程，建立检测和表征活性物质的灵敏方法是很重要的。在研究工业系统中的活性分子时，最有用的分析方法是那些可以在现场应用的方法。这个项目中使用的光谱工具，特别是激光诱导荧光，是非常敏感的方法，可以检测参与半导体制造中使用的燃烧或化学气相沉积等过程中的瞬时化学物种。

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.