Chemistry of Polynuclear Metal Carbonyls

拟议的研究是在一般领域的有机金属 化学和金属簇化学的特定领域。 这项研究预计将提供一个更清晰的了解， 金属簇在合成中如何作为催化剂发挥作用， 有机化合物的转化。 本研究将集中在金属簇合物的两个方面 化学.第一个领域将解决反应机制 金属簇，特别是在均相催化。两 方法将被用来优化的可能性， 簇在整个催化循环中保持完整。的 首先将涉及使用卤化物和拟卤化物， 在温和条件下活化简单羰基簇。的 第二种方法将涉及使用mu-3-NR配体结合 金属在团簇中紧密结合， 可以研究在更剧烈条件下的反应。的 金属簇化学的第二个一般领域要解决 是合成低聚物和聚合物的集群。 集群将各种有机联系在一起 连接基团以提供不同类型的结构。的 将探索低聚物的氧化还原化学，因为 不寻常的电子性能预计为混合 通过部分氧化获得的价态物质。

The proposed research is in the general area of organometallic chemistry and in the specific area of metal cluster chemistry. The research is expected to provide a clearer understanding of how metal clusters function as catalysts in the synthesis and transformation of organic compounds. The research will focus on two areas of metal cluster chemistry. The first area will address the reaction mechanisms of metal clusters, particularly in homogeneous catalysis. Two approaches will be used to optimize the likelihood that the clusters will remain intact throughout the catalytic cycle. The first will involve the use of halides and pseudohalides to activate simple carbonyl clusters under mild conditions. The second approach will involve the use of mu-3-NR ligands to bind together strongly the metals within the cluster, so that reactions under more vigorous conditions may be studied. The second general area of metal cluster chemistry to be addressed is the synthesis of oligomers and polymers of clusters. Clusters will be linked together with a variety of organic linking groups to provide different types of structures. The redox chemistry of the oligomers will be explored, since unusual electronic properties are expected for the mixed valence species obtained by partial oxidation.