Spectroscopy in Supersonic Molecular Beams

超音速分子束光谱学

• 批准号: 9319958
• 负责人: Donald Levy
• 金额: $ 172.31万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-12-15 至 1999-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9319958&HistoricalAwards=false
• 关键词: Spectroscopy; Supersonic; Molecular; Beams

In this project of the Experimental Physical Chemistry Program in the Chemistry Division, Prof. D.H. Levy of the Chemistry Department of the University of Chicago will conduct a series of investigations on the photochemistry of molecules and weakly bound molecular complexes of biochemical interest. Studies of van der Waals systems involving complexes of amino tetrazine, proton transfer reactions in organic dimers, and investigations of porphyrin dimers will be undertaken. The structures of amino acids and peptides in the gaseous phase, the charge and energy transfer in bi-chromophoric molecules, and laser desorption of fragile organic molecules will be investigated by spectroscopic techniques. The underlying goal of this research program is to obtain a better understanding of the properties of large biomolcules. The relationship between the structure and function of biomolcules is to be determined through the spectroscopic investigations of simple amino acids, peptides and other building blocks of the larger biomolecular complexes. Not only the structures, but also the rate at which protons can transfer from one molecule to another, as well as the rate at which electric charge and energy move or are localized within a complex are also important for this understanding . Special techniques are being developed to vaporize weakly bound biomolecular complexes without at the same time dissociating them into their component molecules.

在实验物理化学计划的这个项目中， 化学部，D.H.教授化学系的Levy 芝加哥大学将进行一系列调查， 分子和弱结合分子复合物的光化学 生化兴趣 含有非线性项的货车van der Waals系统的研究 氨基四嗪配合物，有机溶剂中的质子转移反应 二聚体和卟啉二聚体的研究将进行。 的 气相中氨基酸和肽的结构，电荷 和双发色团分子中的能量转移，以及 脆弱的有机分子将通过光谱分析 技术. 这项研究计划的基本目标是获得一个更好的 了解大型生物分子的特性。 的关系 生物分子的结构和功能之间的联系 通过对简单氨基酸、肽的光谱研究 和其他更大的生物分子复合物的构建单元。 不 不仅结构，而且质子可以从 一个分子到另一个分子，以及电荷和 能量移动或局限于复合体中也是重要的 认识 目前正在开发一种特殊技术 弱结合的生物分子复合物，同时不解离 将它们转化为组成分子。