Design and Application of Reactive Early Transition Metal Metallocene Complexes

9413022 爱荷华州约旦大学 爱荷华大学化学系 Richard F. Jordan 博士得到化学系无机、生物无机和有机金属化学项目的支持，研究亲电子早期过渡茂金属配合物的设计、反应性和催化应用。利用手性阳离子配合物，将完成立体选择性烯烃聚合，并将对该过程进行详细研究。这一阶段的研究还将涉及催化、立体选择性 C-H 活化的开发。为了更全面地描述这些阳离子与不饱和分子的相互作用，将对烯烃配合物进行表征，并将化学扩展到一氧化碳。为了改变茂金属的行为，将制备阳离子的碳硼烷类似物。 烯烃聚合是工业上最重要的工艺之一，用于生产聚乙烯、聚丙烯等聚合物。这项研究的目标是设计新的催化剂，它可以有效地诱导形成具有非常规则的原子排列的明确聚合物。

9413022 Jordan University of Iowa Dr. Richard F. Jordan, Chemistry Department, University of Iowa, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division for studies of the design, reactivity, and catalytic applications of electrophilic early transition metallocene complexes. Utilizing chiral, cationic complexes stereoselective olefin polymerization will be accomplished and a detailed investigation of the process will be undertaken. This phase of the study will also involve the development of catalytic, stereoselective C-H activation. To more fully delineate the interaction of these cations with unsaturated molecules, an olefin complex will be characterized and the chemistry will be extended to carbon monoxide. In order to modify the behavior of the metallocenes, carborane analogs of the cations will be prepared. Olefin polymerization is one of the industrially most important processes and is used in the production of such polymers as polyethylene, polypropylene, and many others. The goal of this research is to design new catalysts which can efficiently induce the formation of well defined polymers which possess very regular arrangements of atoms.