Spectroscopy and Reaction Dynamics of Electronically Excited ClF (E*>8.5eV) and Van der Waals Molecules of Xe with Molecules Containing Chlorine

在这个由化学和国际项目部资助的项目中，堪萨斯州立大学的Donald W. Setser将与俄罗斯圣彼得堡物理研究所的V. A. Alekseev博士进行国际合作研究，以表征8.5至12 eV能量范围内ClF状态的光谱和动力学。Alekseev博士在该能量范围内的真空紫外线激发方面拥有丰富的经验，Setser博士使用双光子激光激发或流动反应器中的直流放电研究了类似的物种。在堪萨斯州立大学获得经验后，阿列克谢耶夫博士将返回圣彼得堡，并将该实验室目前使用的双光子技术与单光子技术结合起来。我们感兴趣的是XeCl的B态和C态，它们是用脉冲自由射流膨胀法制备的范德华分子XeClR前体（R为任意基团）光解而成的。准分子激光器以稀有气体卤化物分子为基础，目前被广泛用于各种用途，从制造业中的金属切割和退火到医生办公室的手术。了解这些物种的性质可以影响新激光源的开发，并为现有准分子激光器提供更好的表征以更好地优化它们。

In this project funded by the Chemistry and the International Programs Divisions Donald W. Setser of Kansas State University will pursue cooperative international research with Dr. V. A. Alekseev of the Physics Research Institute of St. Petersburg, Russia to characterize the spectroscopy and kinetics of the states of ClF in the 8.5 to 12 eV energy range. Dr. Alekseev has extensive experience with vacuum ultraviolet excitation in this energy range, and Dr. Setser has studied similar species using two-photon laser excitation or dc discharges in flow reactors. After gaining experience at Kansas State, Dr. Alekseev will return to St. Petersburg and will combine the two-photon technique with one-photon techniques currently used in that laboratory. Specific species of interest are the B and C states of XeCl made by photodissociation of the precursor van der Waals molecule XeClR (where R is any group) prepared using a pulsed free jet expansion. %%% Excimer lasers, which are based on rare-gas halide molecules, are currently used for a wide variety of purposes, from cutting and annealing metals in manufacturing to surgery in doctors' offices. Understanding the nature of these species could impact the development of new laser sources as well as provide a better characterization of existing excimer lasers to better optimize them.