Organometallic Surface Chemistry

这项资助是在分析化学和表面化学的一般领域以及在有机金属表面化学的子领域。Robert Madix教授将研究碳氢化合物和醇分子与单晶活性金属表面（如铁和银）的化学反应。所研究的反应类型是复杂均相金属催化有机化学的重要模型。这些研究将提供关于反应速率和在模型反应中形成的反应物、中间体和产物的结构的信息。关于分子结构和金属表面化学作用的基本信息将有助于提供催化反应的一般原理。一氧化碳在铁催化剂和ı4+2!上促进烯烃的加氢。银表面催化的环加成反应将是研究中的两种体系。振动光谱、热解吸反应质谱、功函数和光电子能谱将用于研究一氧化碳-乙烯在铁（100）表面共吸附的结构和动力学，以及丁二烯在银（110）、铜（110）和钯（111）表面的反应。用振动光谱学和近边x射线吸收精细结构研究了反应物取向变化对其反应性的影响。

This grant is in the general area of analytical and surface chemistry and in the subfield of organometallic surface chemistry. Professor Robert Madix will study the chemical reactions of hydrocarbon and alcohol molecules with well defined single crystal active metal surfaces (e.g. iron and silver). The classes of reactions under study are important models for complex homogeneous metal catalyzed organic chemistry. These studies will provide information about the reaction rates and structures of the reactants, intermediates and products formed during model reactions. Fundamental information about the role of molecular structure and metal surface chemistry will help provide general principles of catalytic reactions. The carbon monoxide promoted hydrogenation of alkenes over iron catalysts and ı4+2! cycloadditions catalyzed on silver surfaces will be the two systems under study. Vibrational spectroscopy, thermal desorption reaction mass spectrometry, work function and photoelectron spectroscopy will be used to study structure and kinetics of carbon monoxide-ethylene coadsorbed on iron (100) and butadiene reactions on silver (110), copper (110) and palladium (111) surfaces. The effects of orientational changes of reactants on their reactivity will be examined by vibrational spectroscopy and near edge x-ray absorption fine structure.