Systematics of the Synthesis and Reactivity of Heteronuclear Cluster Compounds

该奖项在无机、生物无机和有机金属项目中继续支持南卡罗来纳大学化学系理查德·D·亚当斯博士在金属簇合物的合成和表征方面的研究。合成了含铂、铁、钌或铯的羰基化合物，并用红外光谱、核磁共振和X射线结晶学对其进行了表征。将测试这些化合物作为石油重整催化剂的有用性，特别是关于可能通过不同类型的金属原子的协作性而关联的选择性催化。其中一些模型包括金属在结构中偏析到特定层的化合物，这种影响对催化活性的影响将被研究。将使用炔烃取代反应来测试簇内位置的反应性。工业上使用%混合金属和金属合金催化剂来促进加氢反应，但还没有合成能够用来理解混合金属材料的有益效果的这些化合物的分子模型。在这个项目中，将制备混合金属化合物的分子模型，并测定它们在各种催化反应中的反应活性。该研究有助于深入了解催化反应的详细机理，有助于选择性加氢催化剂的开发。

This award in the Inorganic, Bioinorganic, and Organometallic Program provides continued support for the research of Dr. Richard D. Adams of the Chemistry Department, University of South Carolina, on the synthesis and characterization of metal cluster compounds. Carbonyl compounds containing platinum and iron, ruthenium or osmium will be prepared and characterized by IR, NMR, and X-ray crystallography. The usefulness of the compounds as petroleum reforming catalysts will be tested, especially with regard to selective catalysis that might be associated through the cooperativity of different types of metal atoms. Some of the models include compounds in which metals have segregated to particular layers within the structure, and the effect of this effect on catalytic activity will be investigated. Alkyne substitution reactions will be used to test the reactivity of sites within the clusters. %%% Mixed-metal and metal-alloy catalysts are employed industrially to promote hydrogenation reactions, but a molecular model of these compounds which can be used to understand the beneficial effects of the mixed-metal materials has not been synthesized. In this project, molecular models of mixed metal compounds will be prepared and their reactivity in various catalytic reactions determined. The research could provide insights into the detailed mechanisms of catalytic reactions and aid in the development of selective hydrogenation catalysts.