Synthesis and Studies of Selected Metal Carbonyl Clusters and Their Boron Containing Derivatives

无机、生物无机和有机金属奖授予俄亥俄州立大学化学系的Sheldon G. Shore博士，以表彰他合成了新的过渡金属羰基簇化合物。簇中用作起始材料的金属数通常为6，金属为Ru或Os。已知团簇中CO的损失会产生新的物质，这些物质可用于合成含有七个金属原子的混合金属团簇。将尝试将硼封装到这样形成的混合金属团簇中。镧系离子与钌、铁和铁-钌羰基酸盐反应产生额外的靶分子。在该项目的第二部分，将研究氧化镁表面上簇的行为，特别是关于质子转移、热降解和与氢的反应。这个项目涉及开发金属和双金属羰基的新合成方法。所制备的一些物质将用于生产含有缺电子硼烷或碳硼烷的金属簇化合物。另一些将与固体氧化镁反应来模拟表面反应。这项工作在理解有机金属化合物的键和反应性以及多相催化方面都有应用。

This award in the Inorganic, Bioinorganic, and Organometallic Program is to Dr. Sheldon G. Shore of the Department of Chemistry, Ohio State University, for synthesis of new transition metal carbonyl cluster compounds. The number of metals in the cluster used as the starting material is typically six, and metals are Ru or Os. Loss of CO from known clusters results in new species which can be utilized in the synthesis of mixed metal clusters containing seven metal atoms. Attempts will be made to encapsulate boron into the mixed-metal clusters thus formed. Additional target molecules result from reaction of lanthanide cations with ruthenium, iron, and iron-ruthenium carbonylates. In a second part of the project, the behavior of clusters on magnesia surfaces will be investigated, especially with respect to proton transfer, thermal degradation, and reaction with hydrogen. %%% This project involves the development of new synthetic methods for metallic and bimetallic carbonyls. Some of the species prepared will be used to produce metal cluster compounds containing electron-deficient boranes or carboranes. Others will be reacted with solid magnesia to model surface reactions. This work has application both to understanding bonding and reactivity of organometallic compounds and to heterogeneous catalysis.