Photodissociation Dynamics of Small Polyatomic Molecules: Collisional and Collisionless Processes

小多原子分子的光解离动力学：碰撞和无碰撞过程

• 批准号: 8802809
• 负责人: Hanna Reisler
• 金额: $ 31.72万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-04-15 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8802809&HistoricalAwards=false
• 关键词: Photodissociation; Dynamics; Small; Polyatomic; Molecules

This research, part of the Experimental Physical Chemistry Program, utilizes laser techniques to understand the detailed processes in chemical reactions. The data obtained in these studies will elucidate the mechanisms of elementary chemical reactions, the vibrational and rotational excitation of the chemical products, and the barriers to chemical elementary chemical reactions. Supersonic beams will collide with atoms causing chemical reactions. Laser techniques will be used to prepared the reactants with varying amounts of internal (vibrational and rotational) and translational energies. The nascent vibrational and rotational energy distribution of the products of these reactions will be studied as a function of initial energy distributions of the reactant molecules, using laser techniques. These data will be collected at energies up to the dissociation energy of the reactants. Reactions involving the species NCNO, CN, ketene, ICN, 2-methyl-2-nitrosopropane and nitrogen dioxide are included in the systems to be studied.

这项研究是实验物理化学计划的一部分，利用激光技术来了解化学反应的详细过程。这些研究获得的数据将阐明元素化学反应的机理、化学产物的振动和旋转激发以及化学元素化学反应的障碍。超音速光束会与原子碰撞，引起化学反应。激光技术将用于制备具有不同数量的内部（振动和旋转）和平动能量的反应物。这些反应产物的初始振动和旋转能量分布将被研究作为反应物分子初始能量分布的函数，使用激光技术。这些数据的收集能量将达到反应物的解离能。所研究的体系中包括了nncno、CN、烯酮、ICN、2-甲基-2-亚硝基丙烷和二氧化氮。