Fundamental Studies in Metal Cluster Chemistry

爱德华·罗森博格博士，蒙大拿大学化学系，由无机、生物无机和有机金属化学项目资助，研究三金属团簇的化学性质。这些研究将解决与分子转化类型有关的基本问题，当一种以上的金属参与配体激活时，分子转化类型就会发生。具体的研究课题有：(1)三锇团簇促进低温转氨化的机理；(2)咪酰基配合物多种反应的区域反应活性和反应动力学；(3)三金属团簇的水配位化学；(4)多核氢化物配合物中金属-配体氢转移反应的机理。金属催化剂的使用促进了许多重要的化学过程。为了理解和改进这种催化剂，必须知道化学物质与金属相互作用的方式。该项目旨在确定当一个小分子与两个或多个金属原子相互作用时可能发生的转化类型。这些将作为在许多金属催化反应中发生的复杂转化的模型。

9319062 Rosenberg Montana Dr. Edward Rosenberg, Chemistry Department, University of Montana, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program for research into the chemistry of trimetallia clusters. These studies will address fundamental questions relating to the types of molecular transformations which occur when more than one metal is involved in ligand activation. Specific topics to be investigated are: (1) the mechanism by which triosmium clusters promote low temperature transamination, (2) the regio-reactivity and reaction kinetics of a number of reactions of imidoyl complexes, (3) the aqueous coordination chemistry trimetallic clusters, and (4) the mechanism of metal-ligand hydrogen transfer reactions in polynuclear hydride complexes. Many important chemical processes are facilitated by the use of metal catalysts. In order to understand, and improve, such catalysts the ways in which chemical species interact with metals must be known. This project aims at determining the types of transformations which are possible when a small molecule interacts with two or more metal atoms. These will serve as models for the complex transformations which occur in a number of metal catalyzed reactions.