Transient Infrared Spectroscopy as a Probe of Coordinatively Unsaturated Metal Carbonyls

在这个由化学部实验物理化学项目支持的项目中，韦茨将使用瞬时红外光谱法研究配位不饱和金属羰基化合物。 他将专注于配位不饱和金属羰基化合物的反应动力学和机理，重点是催化过程。 拟议的研究包括与铁和VI族羰基化合物引起的烯烃异构化有关的机理研究;羰基锰-烯烃络合物; H2 Fe（CO）3（C2 H4）反应动力学和烯烃的氢化;烯烃的硅氢化;键离解能的测定;以及通过氧化加成过程形成化合物。 在这些研究中，将采用具有时间分辨的红外激光吸收光谱，获得一些催化反应过程的真实的时间信息，并阐明其机理中的重要动力学步骤。 这些信息对于理解和改进涉及这些类型反应的许多工业过程非常重要，因此它将引起纯化学家和应用化学家的广泛兴趣。

In this project supported by the Experimental Physical Chemistry Program of the Chemistry Division, Weitz will investigate coordinatively unsaturated metal carbonyls using transient infrared spectroscopy. He will focus on the kinetics and mechanisms of a number of reactions of coordinatively unsaturated metal carbonyls with an emphasis on catalytic processes. Proposed studies include mechanistic studies relevant to olefin isomerization induced by iron and group VI carbonyls; manganese carbonyl-olefin complexes; H2Fe(CO)3(C2H4) reaction kinetics and the hydrogenation of olefins; hydrosilation of olefins; determination of bond dissociation energies; and formation of compounds by oxidative addition processes. Infrared laser absorption spectroscopy with time resolution will be used in these studies.In this project real time information about a number of catalysis reaction processes will be obtained, and the important kinetic steps in their mechanisms will be elucidated. This information is important for being able to understand and improve on many of the industrial processes which involve these types of reactions, and so it will be of widespread interest to both pure and applied chemists.