U.S.-France Cooperative Research: Dynamics of ArC12 and He2C12

这个为期三年的奖项支持加州大学欧文分校的Kenneth C. Janda和南巴黎大学（奥赛）的Nadine Halberstadt在物理化学方面的美法合作研究。该研究结合了理论和实验研究，以确定电子激发的稀有气体卤素复合物（称为范德华分子）的势能表面。目标是：(1)使用新实现的IVR（分子内振动弛豫）理论获得ArCl2分子振动预解的详细解释，(2)将该理论扩展到四原子团簇的结构和动力学，如HeCl2。美国研究小组制作了非常详细的范德华分子光谱，该理论适用于此。这项工作提供了关于化学反应动力学和从气态到液态物理转变的基本数据。这是由法国研究者在散射理论应用于范德华分子离解动力学方面的工作所补充的。提出的努力将促进对团簇动力学和从气体到液体状态转变的基本理解。

This three-year award supports U.S.-France cooperative research in physical chemistry between Kenneth C. Janda, University of California at Irvine, and Nadine Halberstadt, University of Paris, South (Orsay). The research combines theoretical and experimental studies to determine the potential energy surface for electronically excited rare gas halogen complexes known as van der Waals molecules. The objectives are (1) to obtain a detailed interpretation of vibrational predissociation for ArCl2 molecule using a newly implemented IVR (intramolecular vibrational relaxation) theory, and (2) to extend this theory to the structure and dynamics of four-atomic clusters, such as HeCl2. The U.S. research group produces very detailed spectra of van der Waals molecules for which theory is applicable. This work has yielded fundamental data about the dynamics of chemical reactions and the physical transition from gaseous to liquid state. This is complemented by the French investigator's work on scattering theory as applied to the dissociation dynamics of van der Waals molecules. The proposed effort will advance fundamental understanding of cluster dynamics and transitions from gas to liquid state.