Mechanism of Transition Metal-Catalyzed Reactions in Hydrocarbons

这项研究的重点有三个方面。 第一，活动 钌烯烃复分解催化剂将被确定为 配体组成和金属含量。 第二，化学发展 与钌配合物将扩展到铁和钌， 确定这些金属的络合物是否也形成金属-碳双 键，并因此起到复分解催化剂的作用。 三是 钌配合物作为活性引发剂的活性 应变烯烃的聚合反应将在不寻常的介质中进行研究 包括水溶液和载体的表面上。 研究生 参与拟议研究的学生将获得广泛的， 有机金属和聚合物领域的跨学科培训 化学. 有机和高分子化学程序（CHE）和固体 国家化学和聚合物计划（DMR）支持以下研究： 加州大学化学系的罗伯特·格拉布斯教授 理工学院 格拉布斯教授将把研究重点放在 能够形成碳-金属双金属的金属配合物的合成 键，以及这些络合物作为聚合引发剂的用途 反应. 形成不寻常形状和组成的聚合物， 在不寻常的环境中引发，包括水溶液和 表面的支持，将被探索。 格拉布斯教授会训练 研究生在设计，合成和表征 有机金属配合物及其作为聚合引发剂的用途。

The focus of this research is threefold. First, the activity of ruthenium olefin-metathesis catalysts will be determined as functions of ligand composition and metal content. Second, the chemistry developed with the ruthenium complexes will be extended to iron and rhenium to determine whether complexes of these metals also form metal-carbon double bonds, and as such, function as metathesis catalysts. Third, the activity of the ruthenium complexes as initiators for the living polymerization of strained olefins will be examined in unusual media including aqueous solution and on the surface of a support. Graduate students involved in the proposed research will receive broad, interdisciplinary training in the areas of organometallic and polymer chemistry. The Organic and Macromolecular Chemistry Program (CHE) and the Solid State Chemistry and Polymer Program (DMR) support the research of Professor Robert Grubbs of the Department of Chemistry at the California Institute of Technology. Professor Grubbs will focus his research on the synthesis of metal complexes capable of forming carbon-metal double bonds, and the use of these complexes as initiators of polymerization reactions. Formation of polymers of unusual shape and composition and initiation in unusual environments, including aqueous solution and on the surface of a support, will be explored. Professor Grubbs will train graduate students in the design, synthesis and characterization of organometallic complexes and their use as polymerization initiators.