Ultrafast Kinetic Studies of Molecular Rearrangements

分子重排的超快动力学研究

• 批准号: 0408265
• 负责人: Kevin Peters
• 金额: $ 41.8万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0408265&HistoricalAwards=false
• 关键词: Ultrafast; Kinetic; Studies; Molecular; Rearrangements

With this renewal award, the Organic and Macromolecular Chemistry Program continues its support of the work of Professor Kevin S. Peters of the Department of Chemistry at the University of Colorado, Boulder, CO. The research will extend the PI's research using femtosecond, picosecond, and nanosecond transient absorption spectroscopy to study the real time dynamics of chemical reactions. Systems to be investigated include 1,2 and 1,3 hydride and deuteride shifts in carbocations, 1,2 alkyl shifts in carbocations, and the dynamics of proton/deuteron transfer in a variety of substituted benzophenones/N,N-diallylaniline radical ion pairs. The results of these kinetic studies will be analyzed within the context of adiabatic and non-adiabatic rearrangements in order to assess the validity of transition state theory for describing the dynamics of charge displacement reactions in the condensed phase.These studies of the dynamics of proton and hydride transfer are expected provide important fundamental information that will impact on theoretical and experimental treatments of such reactions in organic, physical, and biological chemistry.

有了这个更新奖，有机和高分子化学计划继续支持教授凯文S。该研究将扩展PI的研究，使用飞秒，皮秒和纳秒瞬态吸收光谱来研究化学反应的真实的动力学。 待研究的系统包括碳正离子中的1，2和1，3氢化物和氘化物移位，碳正离子中的1，2烷基移位，以及各种取代的二苯甲酮/N，N-二烯丙基苯胺自由基离子对中的质子/氘核转移的动力学。 这些动力学研究的结果将在绝热和非绝热重排的背景下进行分析，以评估过渡态理论描述凝聚相中电荷置换反应动力学的有效性。这些质子和氢化物转移动力学的研究预计将提供重要的基础信息，这将影响有机，物理和生物化学。