Metal Cluster Synthesis and Ligand Transformations

该项目的重点是无机，生物无机和 有机化学课程是过渡化学 金属簇合物，构成了一类重要的 工业催化剂该项目预计将提供一个 更好地了解这些集群是如何 组装和有机分子结合的转变 到集群。 金属簇化学的两个重要领域是 地址：配体转换簇和合成 新型的混合金属簇。 在前一个地区， CCO配体的C-O键断裂方法的最新发现 将被利用。该反应的机理将是 研究，和C-O键的裂解将被用来 合成了多种新取代炔键配体 到三金属簇。这些配体将允许系统地 C-C断裂的超大取代基效应研究 与金属键合的取代乙炔配体的反应 集群基于裂解的簇构建反应 C-O键应该提供一种新的途径， C2部分。在金属簇研究的第二个领域， 合成和物理表征的新类型的早期- 将探索后过渡金属簇合物。

The focus of this project in the Inorganic, Bioinorganic and Organometallic Chemistry Program is the chemistry of transition metal cluster compounds, which constitute an important class of industrial catalysts. The project is expected to provide a better understanding of the way in which such clusters are assembled and of the transformations of organic molecules bound to the clusters. Two important areas of metal cluster chemistry will be addressed: ligand transformations on clusters and the synthesis of new types of mixed-metal clusters. In the former area the recent finding of ways to split the C-O bond of the CCO ligand will be exploited. The mechanism of this reaction will be studied, and the cleavage of the C-O bond will be utilized to synthesize a variety of new substituted acetylide ligands bound to three-metal clusters. These ligands will permit systematic studies of the very large substituent effects on C-C cleavage reactions for substituted acetylene ligands bound to metal clusters. Cluster building reactions based on the cleavage of the C-O bond should provide a new route to clusters containing C2 moieties. In the second area of metal cluster research, the synthesis and physical characterization of new types of early- late transition metal cluster compounds will be explored.