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

该奖项由化学学部实验物理化学项目资助，辛辛那提大学的Bruce Ault教授将与他的研究生和本科生研究人员一起，研究气相臭氧分解烯烃和炔烃反应中间体的光谱，包括Criegee和类Criegee物质。瞬态物质将在合并光束中产生，并迅速沉积到冷惰性基质上，在那里分子将通过红外光谱进行研究。不饱和烃分子（含碳-碳双键或三键的烃分子）的臭氧分解是合成有机化学和对流层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们所做的研究，旨在为这一过程发生的复杂化学过程建立详细的、循序渐进的模型。这类知识可以改进化学合成的方法，或者可能导致对地球大气化学的更好理解。奥尔特教授还将继续他的活动，通过积极参与辛辛那提大学的女性科学与工程项目，以及通过美国化学会的SEED项目对弱势高中生进行研究指导，增加化学领域代表性不足群体的成员数量。

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.