Intrinsic Reactivity from Competitive Ion-Molecule Reactions in the Gas-Phase

气相竞争性离子-分子反应的固有反应性

• 批准号: 9001697
• 负责人: Joseph Grabowski
• 金额: $ 5.9万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-15 至 1991-08-15
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9001697&HistoricalAwards=false
• 关键词: Intrinsic; Reactivity; Competitive; Ion; Molecule

This grant from the Organic Dynamics Program supports the work of Dr. Joseph J. Grabowski at Harvard University. The results of this investigation will provide new insights into the fundamental details of the processes by which chemical reactions take place. Dr. Grabowski will employ the Flowing Afterglow and Selected Ion Flow Tube techniques to examine, probe, and define mechanisms of gas-phase, organic, ion-molecule reactions. Competitive reactions will be employed so that accurate product ratios will provide direct information about the alternative reaction channels in the absence of solvent effects. Both positive-ion and negative-ion systems will be studied, and the investigation will focus on comparisons of such reaction pairs as elimination-substitution, competitive H-atom transfers, and reactions at differently hybridized carbon centers in the same molecule.

有机动力学计划的这笔赠款支持哈佛大学 Joseph J. Grabowski 博士的工作。 这项研究的结果将为化学反应发生过程的基本细节提供新的见解。 Grabowski 博士将采用流动余辉和选择离子流管技术来检查、探测和定义气相、有机、离子分子反应的机制。 将采用竞争反应，以便在没有溶剂效应的情况下，准确的产物比例将提供有关替代反应通道的直接信息。 将研究正离子和负离子系统，研究重点是消除取代、竞争性氢原子转移以及同一分子中不同杂化碳中心的反应等反应对的比较。