Infrared Spectral Hole Burning: Vibrational Spectroscopy and Conformational Transformation

红外光谱烧孔：振动光谱和构象变换

• 批准号: 9815945
• 负责人: Herbert Strauss
• 金额: $ 48.9万
• 依托单位: University of California-Berkeley
• 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: 1999-03-01 至 2003-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9815945&HistoricalAwards=false
• 关键词: Infrared; Spectral; Hole; Burning; Vibrational

In this project supported by the Experimental Physical Chemistry Program of the Chemistry Division, Dr. Herbert Strauss of the University of California will extend earlier studies on infrared vibrational hole burning and hole dynamics in condensed phases. The time resolution of the experiments will be increased by one or more orders of magnitude, and the range of wavelength will also be increased. New materials to be examined include alkanes, polymers, amino acid salts and polypeptide systems. The results of these studies will help determine mechanisms of energy transfer, hole burning, and conformational transformation. A fundamental understanding of the structure and behavior of large molecules in condensed phases is potentially important for polymer engineering and biochemical applications. The hole burning technique developed in this work can be used to give information about structural changes and energy flow that occur after molecules in condensed phases are excited.

在这个由化学部门实验物理化学项目支持的项目中，加州大学的赫伯特·施特劳斯博士将扩展早期关于红外振动孔燃烧和凝聚态孔动力学的研究。实验的时间分辨率将提高一个或多个数量级，波长范围也将增加。要检查的新材料包括烷烃、聚合物、氨基酸盐和多肽系统。这些研究结果将有助于确定能量传递、孔燃烧和构象转变的机制。对凝聚态大分子的结构和行为的基本理解对于聚合物工程和生化应用具有潜在的重要意义。在这项工作中开发的孔燃烧技术可以用来提供关于凝聚态分子被激发后发生的结构变化和能量流动的信息。