Molecular and Magnetooptical Spectroscopy

分子和磁光光谱

• 批准号: 9207886
• 负责人: Paul Schatz
• 金额: $ 35.85万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9207886&HistoricalAwards=false
• 关键词: Molecular; Magnetooptical; Spectroscopy

In this project in the Physical Chemistry Program of the Chemistry Division, Prof. Paul N. Schatz will study the magnetooptical spectroscopy of large polyatomic systems, such as fullerenes and porphyrins, in low-temperature noble gas matrices. Prof. Schatz expects to obtain basic electronic structural information about the ground and excited states of molecular, ionic, mixed-valent, and radical species using magnetic circular dichroism and magnetic circularly polarized luminescence spectroscopies and their zero-field counterparts. He will also perform theoretical analyses to fit the spectra in order to obtain spectroscopic parameters for these systems. %%% By studying the spectroscopy of atoms, molecules, radicals, and their respective ions captured in very cold matrices consisting of solids made from noble-gas atoms, scientists can learn much about their molecular structure and other important properties. Prof. Schatz will use magnetic fields and polarized light to aid him in understanding the electronic spectra of several chemically interesting species and to acquire information which can not be obtained any other way. Among the most interesting are fullerene compounds (molecules made exclusively from carbon atoms arranged in closed geometric solids) and their positive and negative ions as well as porphyrin systems. The former compounds are relevant to materials science because of recent applications to areas such as high-temperature superconductivity. The latter are important to bioinorganic chemistry and have relevance to a number of biological sytems.

在这个项目中的物理化学计划的 化学部，Paul N.沙茨将研究 大型多原子系统的磁光光谱，如 如富勒烯和卟啉，在低温惰性气体中 矩阵 Schatz教授希望获得基本的电子 的基态和激发态的结构信息 分子、离子、混合价和自由基物质， 磁圆二向色性和磁圆偏振 发光光谱学及其零场对应物。 他还将进行理论分析， 以获得这些系统的光谱参数。 %%% 通过研究原子、分子、自由基的光谱， 它们各自的离子被捕获在非常冷的基质中， 由惰性气体原子构成的固体， 关于它们的分子结构和其他重要性质。 Schatz教授将利用磁场和偏振光， 帮助他理解了几个电子光谱 化学上有趣的物种并获取信息， 不能通过其他方式获得。 其中最有趣的 是富勒烯化合物（完全由碳制成的分子 原子排列在封闭的几何固体）和它们的正 和负离子以及卟啉体系。 前 化合物与材料科学有关，因为最近 应用于高温等领域 超导性 后者对生物无机 化学，并与许多生物系统相关。