Synthesis and Studies of Selected Metal Carbonyl and Boron-Metal Carbonyl Clusters

这项由无机、生物无机和有机生物科学委员会 化学计划是在有机金属化学领域。 该项目涉及扩大化学和 进一步深入了解所选材料的性质， 过渡金属羰基和硼金属羰基簇合物 系统.特别有趣的是这些金属的化学性质 表面上的簇合物，在那里它们作为催化剂 有机化合物的相互转化， 表面支撑的金属簇，其构成另一个 一类重要的多相工业催化剂。 该项目的综合努力旨在提供 几种新的杂原子团簇材料， 混合金属的三角形或更高多面体核，或 金属加上主族元素如硼。化学 含BCO的九羰基三锇簇合物的形成 或B3O3基团将被研究，以深入了解 它们及其衍生物的反应途径 形成。本文研究了几种金属表面的有机金属化学， 这些混合金属和金属硼簇将在 羟基化氧化镁和向杂原子金属的转化 将尝试集群。原则上，研究这种 粒子可以提供有趣的相关性和基本的 理解高度分散的杂原子催化剂和 一类原子对催化性能的影响 另一个人氧化物表面上的团簇的一些建模将 也要尝试。

This grant from the Inorganic, Bioinorganic and Organometallic Chemistry Program is in the area of organometallic chemistry. The project is concerned with expanding the chemistry of and gaining further insights into the properties of selected transition metal carbonyl and boron metal carbonyl cluster systems. Of particular interest is the chemistry of these metal cluster compounds on surfaces, where they serve as catalysts for the interconversion of organic compounds and as models of surface-supported metal clusters, which constitute another important class of heterogeneous industrial catalysts. The synthetic effort of the project is designed to provide several new heteronuclear cluster materials which contain triangular or higher polyhedral cores of mixed metals, or metals plus a main group element such as boron. Chemistry of the formation of triosmiumnonacarbonyl clusters containing BCO or B3O3 groups will be studied to gain insights into the reaction pathways by which they and some of their derivatives are formed. The surface organometallic chemistry of a number of these mixed metal and metal boron clusters will be examined on hydroxylated magnesia and conversion to heteroatomic metal clusters will be attempted. In principle, a study of such particles can provide interesting correlations and basic understanding of highly dispersed heteroatomic catalysts and of the influence of one type of atom on the catalytic properties of the other. Some modelling of clusters on oxide surfaces will be attempted also.