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，由无机化学、生物无机化学和有机金属化学项目支持，研究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13个基团是环戊二烯环上的取代基或环戊二烯基之间的桥基的早期过渡金属弯曲茂金属。这些Lewis酸位有望增强过渡金属络合物对极性底物的反应活性，并增强其作为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。许多由过渡金属化合物催化的重要工业化学过程也使用主基化合物，通常是铝化合物作为助催化剂。在这个项目中，将制备同时包含过渡金属部分和主族金属部分的化合物。然后将对它们进行研究，以确定它们调节小分子反应和用作聚合催化剂的能力。

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.