Inner-Shell Excitation and Deexcitation in Small Molecules

小分子的内壳激发和去激发

• 批准号: 9408368
• 负责人: T. Darrah Thomas
• 金额: $ 28.93万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-15 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9408368&HistoricalAwards=false
• 关键词: Inner; Shell; Excitation; Deexcitation; Small

In this project in the Physical Chemistry program of the Chemistry Division, Prof T. Darrah Thomas of the Oregon State University will engage in a study of the inner-shell excitation and deexcitation of molecules by electron spectroscopy. Of primary interest is the development of facilities to perform Auger-photoelectron coincidence spectroscopy in the gas phase and on using zero-kinetic energy spectroscopy to determine the lifetimes of core-ionized molecules. In addition, the relationship between the inner-shell ionization energies and other chemical properties will continue to be investigated. In Auger-photoelectron spectroscopy the spectrum is measured in coincidence with photoelectrons of selected energy. This technique makes it possible to study the deexcitation pathways of a single, selected excited state and thereby it is an important aid in the understanding of complex Auger spectra. This technique has heretofore been applied only to solids. The aim of this project is to extend its applicability to systems in the gaseous phase. Core-ionization energies can be related directly to the factors that influence a number of chemical properties. Research in the two areas of Auger photoelectron spectroscopy and core-ionization energies will contribute to a better understanding of chemical phenomena.

在这个项目中的物理化学程序的化学 司，T教授。来自俄勒冈州州立大学的达拉托马斯 从事内壳层激发和去激的研究 分子的电子光谱。 主要的兴趣是 俄歇-光电子符合装置的研制 气相中的光谱学和使用零动能 光谱学来确定核心电离分子的寿命。 在 此外，内壳层电离能与 其他化学性质将继续研究。 在俄歇光电子能谱中， 与选定能量的光电子重合。 这种技术使得 有可能研究一个单一的，选择性的去兴奋途径， 激发态，因此它是理解的重要帮助， 复杂俄歇谱 迄今为止，这项技术仅用于 固体。 该项目的目的是将其适用性扩展到 气相中的系统。 核心电离能可以与 直接与影响许多化学性质的因素有关。 俄歇光电子能谱和 核心电离能将有助于更好地理解 化学现象。