Organometallic Chemistry of Electropositive Metals Supported by Macrocyclic Ligands

加州大学伯克利分校化学系John Arnold博士得到化学部无机、生物无机和有机金属化学项目的支持，以开发新的单阴离子配体。将探索配体的早期过渡金属和稀土络合物的化学。主要的推动力是一系列新的单阴离子配体，它们将能够支持与目前以CP为基础的体系为主的化学相关的化学。具体地说，将开发新的功能化14元四氮杂大环，制备它们与二价和三价金属的配合物，并研究它们的化学计量和催化反应活性。过渡金属和稀土元素化合物介导的反应在工业规模上很重要，并提供了越来越多的关于化学键性质的基础知识。近年来，人们在开发配体方面做出了相当大的努力，这些配体将定制金属的化学反应活性和性质。在这项研究中，将设计新的配体来促进具有2和3电荷的金属离子的反应。这是一个重要的目标，因为许多已知发生在4离子上的重要过程还没有有效地为2和3离子开发。该项目的一个重要目标是对青年科学家进行研究生和博士后教育。

Dr. John Arnold, Chemistry Department, University of California - Berkeley, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division for the development of new monoanionic ligands. The chemistry of early transition metal and lanthanide complexes of the ligands will be explored. The major thrust is a new series of monoanion ligands that will be capable of supporting chemistry related to that presently dominated by Cp based systems. Specifically new functionalized 14-membered tetraazamacrocycles will be developed, their complexes with di and trivalent metals prepared, and their stoichiometric and catalytic reactivity investigated.Reactions mediated by transition metal and lanthanide element compounds are important on an industrial scale and provide ever increasing fundamental knowledge regarding the nature of the chemical bond. In recent years, there has been considerable effort in developing ligands that will tailor the chemical reactivity and properties of the metal. In this study new ligands will be designed to facilitate reactions at metal ions with a 2+ and 3+ charge. This is an important goal since many important processes that are known to take place at 4+ ions have not yet been efficiently developed for 2+ and 3+ counterparts. An important goal of the project is the education of young scientists at the graduate and postdoctoral level.