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Kinetics of Unimolecular and Bimolecular Reactions of Halocarbons and Haloalcohols in the Gas Phase

卤代烃和卤代醇在气相中的单分子和双分子反应动力学

基本信息

批准号：
9508666
负责人：
Bert Holmes
金额：
$ 15.28万
依托单位：
Lyon College
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1995
资助国家：
美国
起止时间：
1995-07-01 至 1998-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9508666&HistoricalAwards=false
关键词：
Kinetics Unimolecular Bimolecular Reactions Halocarbons

项目摘要

In this project in the Experimental Physical Chemistry Program, Bert Holmes of Lyon College is funded by a Research in Undergraduate Institutions award to measure unimolecular and bimolecular rate constants for a series of gas-phase reactions involving halocarbons using chemical activation. Studies will include the 1,2-dehydrohalogenation of haloalkanes for which for which the nature of the transition states will be determined, and 1,2-dehydration of chemically activated haloalcohols for which rate constants and threshold energy barriers will be determined. The results from these studies will be used to test recent theories concerning transitions states for bimolecular reactions of haloalkyl radicals. This work will provide an improved understanding of some of the reaction resulting in ozone depletion. Additionally, the work will provide strong motivation for undergraduate students to pursue careers in chemistry. Ozone depletion is a complex problem involving gas-phase, liquid-phase, and interfacial reactions. In order to understand the problem, typical unimolecular and bimolecular reactions of molecules known to contribute to ozone depletion must be measured and understood. Professor Holmes' work will address some of the issues involved in this serious problem, while at the same time giving undergraduate students the opportunity to perform experiments in a timely and important area.

在实验物理化学项目的这个项目中，伯特里昂学院的霍姆斯是由一项本科生研究资助的测量单分子和双分子速率常数的机构奖对于一系列涉及卤化碳的气相反应， activation. 研究将包括1，2-脱卤化氢卤代烷烃，过渡态的性质将和化学活化卤代醇的1，2-脱水其速率常数和阈值能垒将是测定这些研究的结果将用于测试最近的双分子反应过渡态理论卤代烷基。这项工作将提供一个更好的理解一些反应导致臭氧消耗。另夕h 工作将为本科生提供强大的动力去追求化学职业臭氧消耗是一个复杂的问题，涉及气相，液相，和界面反应。为了理解问题，典型的单分子和双分子反应臭氧层的破坏必须加以测量和理解。福尔摩斯教授的工作将解决这一严重问题所涉及的一些问题，与此同时，在一个及时和重要的领域进行实验。