Matrix Isolation Spectroscopic Studies of the Mechanism of the Gas Phase Ozonolysis of Alkenes and Alkynes: Criegee and Criegee-like Intermediates

烯烃和炔烃气相臭氧分解机理的基质分离光谱研究：Criegee 和类 Criegee 中间体

• 批准号: 0749109
• 负责人: Bruce Ault
• 金额: $ 39万
• 依托单位: University of Cincinnati Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0749109&HistoricalAwards=false
• 关键词: Matrix; Isolation; Spectroscopic; Studies; Mechanism

In this award, funded by the Experimental Physical Chemistry Program of the Division of Chemistry, Professor Bruce Ault of University of Cincinnati, together with his graduate and undergraduate student researchers, will investigate the spectra of reaction intermediates in the gas-phase ozonolysis of alkenes and alkynes, including Criegee and Criegee-like species. The transient species will be created in a merged beam and quickly deposited onto a cold, inert matrix, where the molecules will be studied via infrared spectroscopy. The ozonolysis of unsaturated hydrocarbon molecules (hydrocarbon molecules which contain carbon-carbon double or triple bonds) is an important processes in synthetic organic chemistry as well as in the oxidation of volatile organic compounds in the troposphere. Research like that of Prof. Ault and his students is aimed at developing detailed, step-by-step models of the complex chemistry through which this process occurs. This kind of knowledge can lead to improved methods for chemical synthesis or may lead to a better understanding of the chemistry of earth's atmosphere. Prof. Ault will also continue his activities at increasing the numbers of members of underrepresented groups in chemistry through activities like his active participation in the Women in Science and Engineering Program at U. Cincinnati as well as his research mentorship of disadvantaged high school students through Project SEED of the American Chemical Society.

在这个由化学系实验物理化学计划资助的奖项中，辛辛那提大学的布鲁斯奥尔特教授将与他的研究生和本科生研究人员一起，研究烯烃和炔烃气相臭氧分解反应中间体的光谱，包括Criegee和Criegee类物种。 瞬态物质将在合并的光束中产生，并迅速沉积在冷的惰性基质上，在那里分子将通过红外光谱进行研究。不饱和烃分子（含有碳碳双键或三键的烃分子）的臭氧分解是有机合成化学和对流层中挥发性有机化合物氧化的重要过程。 像奥尔特教授和他的学生这样的研究旨在开发这个过程发生的复杂化学过程的详细的，逐步的模型。 这类知识可以改进化学合成的方法，或者可以更好地了解地球大气的化学性质。 奥尔特教授还将继续他的活动，通过他积极参与美国大学的妇女科学与工程项目等活动，增加化学领域代表性不足的群体的成员数量。辛辛那提以及他的研究导师的弱势高中学生通过项目种子的美国化学学会。