Coordination Chemistry of Soluble Metal Oxides

该奖项来自无机、生物无机和有机金属项目，旨在支持多核过渡金属氧烷氧化物配合物的研究。一般的重点是化合物可以作为氧化物表面的可溶性模型，醇酮水解的中间体，以及作为溶胶-凝胶合成新材料的前体。感兴趣的金属是钼和钒，可能延伸到钽和铌；醇氧化合物将从几种多官能团羟基化合物中选择。该研究的主要目标是深入了解聚集的基本方面，从而控制多核物种的核性。金属氧化物是最常见和最有用的金属化合物之一，但由于其形成机制和在许多催化反应中的作用，也是最难表征的金属化合物之一。许多金属氧化物是由金属烷氧化物（醇的金属盐）与水反应而制得的。本研究旨在通过研究包含多个金属原子的簇分子和离子，以及氧化物和醇氧化物配体，提高我们对这两个过程的理解。新化合物将通过各种光谱方法在溶液和固体状态下进行研究，固体结构将通过x射线晶体学确定。所合成的一些化合物可用于制备新型陶瓷材料和催化剂。

This award from the Inorganic, Bioinorganic and Organo- metallic program is to support the investigation of poly- nuclear transition metal oxoalkoxide complexes. The general focus is on compounds that may serve as soluble models for oxide surfaces, intermediates in alkoxide hydrolysis, and as precursors for sol-gel synthesis of new materials. The metals of interest are molybdenum and vanadium with possible extensions to tantalum and niobium; alkoxides will be chosen from among several polyfunctional hydroxylic compounds. The broad objectives of the research are to gain insight into the fundamental aspects of aggregation and thereby the control of nuclearity of the polynuclear species. %%% Metal oxides are among the most common and most useful metallic compounds but are also among the most difficult to characterize with respect to their mechanisms of formation and action in many catalytic reactions. Many metal oxides are prepared by reaction of metal alkoxides (metal salts of alcohols) with water. This research is designed to improve our understanding of both processes through the study of cluster molecules and ions that contain multiple metal atoms, and both oxide and alkoxide ligands. The new compounds will be studied in solution and in the solid state by a variety of spectroscopic methods and solid state structures will be determined by x-ray crystallography. Some of the compounds whose syntheses are proposed may be useful for the preparation of new ceramic materials and catalysts.