The Development of Cyclopentadienylaluminum and Boron Ligands as Innovations to the Chemistry of Bent-Sandwich and Half-Sandwich Transition Metal Complexes

9320407爱达荷州夏皮罗大学爱达荷州大学化学系Pamela Shapiro博士得到无机、生物无机和有机化学项目的支持，研究了作为过渡金属配体的环戊二烯基铝和硼化合物。将制备其中第13族部分是双环上的取代基或双环之间的桥连基团的早期过渡金属β-双环烯。预期这些刘易斯酸位点增强过渡金属络合物对极性底物的反应性并提高络合物用作烯烃聚合催化剂的能力。因此，将研究它们与各种小分子的反应性。 许多重要的由过渡金属化合物催化的工业化学方法也使用主基， 通常是铝化合物作为助催化剂。在本项目中，将制备含有过渡族和主族金属部分的化合物。然后将研究它们以确定它们介导小分子反应和作为聚合催化剂的能力。

9320407 Shapiro University of Idaho Dr. Pamela Shapiro, Chemistry Department, University of Idaho, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program for an investigation of cyclopentadienyl-aluminum and boron compounds as ligands for transition metals. Early transition metal bent-metallocenes in which a group 13 moiety is a substituent on or a bridging group between cyclopentadienyl rings will be prepared. These Lewis acid sites are expected to enhance the reactivity of the transition metal complex toward polar substrates and increase the ability of the complexes to serve as olefin polymerization catalysts. Consequently, their reactivity with a variety of small molecules will be investigated. A number of important industrial chemical processes which are catalyzed by transition metal compounds also employ a main-group, often aluminum, compound as a co-catalyst. In this project compounds which contain both the transition- and main-group metal portions will be prepared. They will then be investigated to determine their ability to mediate the reactions of small molecules and to serve as polymerization catalysts.