Kinetics, Spectroscopy and Mechanistic Studies of Carbenes, Biradicals and Radicals

有机动力学项目的这笔拨款支持俄亥俄州立大学马修·普拉茨博士的研究。普拉茨博士将继续研究自由基、多自由基和卡宾等瞬时中间体的光谱和反应机理。他的工作将强调化学和物理方法，包括激光闪光光解和低温基质隔离光谱。一个主要的目标是测量烷基、二烷基和芳香族卡宾的反应动力学。这些研究将检验化学反应的动力学理论，这些化学反应有熵但没有热障。他将测试在卡宾与烯烃和亲核试剂反应中是否存在可逆形成的中间体。我们将详细研究三重态卡宾与单重态试剂的自旋禁止反应。

This grant in the Organic Dynamics Program supports the research of Dr. Matthew Platz at Ohio State University. Dr. Platz will continue to investigate the spectroscopy and reaction mechanisms of transient intermediates such as radicals, polyradicals and carbenes. His work will emphasize chemical and physical methods including laser flash photolysis and low temperature matrix isolation spectroscopy. A principal goal will be to measure the kinetics of reactions of alkyl, dialkyl and aromatic carbenes. These studies will test dynamical theories of chemical reactions which have entropic but no enthalpic barriers. He will test for the presence of reversibly formed intermediates in the reaction of carbenes with olefins and nucleophiles. Spin-forbidden reactions of triplet carbenes with singlet reagents will be examined in detail.