Synthesis and Reactivity of Mixed Transition Metal-Gold and Silver Cluster Compounds

在这个由无机，生物无机和 有机化学计划，路易斯H。皮格诺莱特 明尼苏达大学将研究合成， 混合过渡金属-金的反应性及表征 和银簇化合物。这些金属的双金属合金 已知是重要的商业催化剂。的反应 离散簇化合物的模型可能是有用的合金 表面，因此在理解基本的 催化金属表面的反应机理。 抗肿瘤药物的系统合成研究进展 集群将被用作形成的起点， 新的三金属簇合物。重点将放在黄金和 也含有铂或钯的银簇。一 初步程序，允许第三个未结扎的金属， 将添加到现有集群的外部边缘将 开发和由此产生的复合物将被检查， 催化活性此外，还将制定一项程序， 用于将金属簇合物连接到二氧化硅上， 次膦酸化聚合物，其可能具有潜在的用途， 可回收的催化剂

In this project supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program, Louis H. Pignolet of the University of Minnesota will investigate the synthesis, reactivity and characterization of mixed transition metal-gold and silver cluster compounds. Bimetallic alloys of these metals are known to be important commercial catalysts. The reactions of discrete cluster compounds may be useful as models for alloy surfaces and therefore in understanding the fundamental reaction mechanisms at the catalytic metal surfaces. Recent advances in the systematic synthesis of bimetallic clusters will be used as a starting point for the formation of new trimetallic clusters. Emphasis will be placed on gold and silver clusters which also contain platinum or palladium. A preliminary procedure which allows a third unligated metal to add to the external edge of an existing bimetallic cluster will be developed and the resulting complexes will be examined for catalytic activity. In addition, a procedure will be developed for the attachment of the metal cluster compounds to silica and phosphinated polymers, which may have potential use as easily recoverable catalysts.