Photodissociation and Photodetachment: Product Imaging

光解离和光分离：产品成像

• 批准号: 9901065
• 负责人: Paul Houston
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9901065&HistoricalAwards=false
• 关键词: Photodissociation; Photodetachment; Product; Imaging

In this project supported by the Experimental Physical Chemistry Program of the Chemistry Division, Paul Houston of Cornell University will apply product imaging techniques to understand better both photodissociation and photodetachment processes. Photodissociation studies of NCO, SO2, benzaldehyde, and C2O will be made in order to learn how the initial state of the parent molecule or radical affects the product state distribution. Detachment from C2-, O2-, phenoxide anions, polyenyl anions and enolate anions will be investigated to learn how the angular and energy distributions vary as a function of photodetachment wavelength. These studies will improve our basic understanding of the coupling between quasi-bound and continuum states.The results of these studies will help provide a better understanding of radicals and molecules important in atmospheric chemistry and combustion. In addition, the techniques of imaging being developed may have an impact on a variety of unrelated fields including, for example, tomography.

在这个由化学系实验物理化学计划支持的项目中，康奈尔大学的保罗·休斯顿将应用产品成像技术来更好地了解光解离和光分离过程。将对NCO、SO2、苯甲醛和C2O进行光解研究，以了解母体分子或自由基的初始状态如何影响产物的状态分布。我们将研究C2-、O2-、酚氧阴离子、多烯基阴离子和烯酸阴离子的剥离，以了解角度分布和能量分布如何随光剥离波长的变化而变化。这些研究将加深我们对准束缚态和连续态间耦合的基本理解。这些研究的结果将有助于更好地理解在大气化学和燃烧中重要的自由基和分子。此外，正在开发的成像技术可能会对各种不相关的领域产生影响，包括例如断层成像。