杂芳香基金属有机化合物的合成、反应性质与催化应用

配体对金属有机化合物的物理和化学性质有着至关重要的影响。因此，发展新型的有机配体，通过对配体的立体电子效应的调节对金属有机化合物的物理和化学性质进行调控一直以来都是金属有机化学研究的主题之一。本项目以发展新一代具有强给电子能力的碳基芳香杂环配体、构筑高效非贵金属催化的有机合成转化为目标，从五元杂芳环的金属有机化学研究出发，设计和合成新型官能化杂芳基配体，建立合成新型杂芳基稀土、铁、钴有机化合物的方法，通过对金属中心和辅助配体的调节实现对金属有机化合物的反应性能的控制，探索杂芳基金属有机化合物与有机小分子的计量反应模式，以计量反应研究为基础构筑非贵金属催化循环，发展从杂芳基金属有机化合物出发的官能化芳杂环合成子、共轭有机材料、高分子材料合成新方法，开发可用于高效高选择性金属有机催化反应的杂芳基配体体系。

As the indispensable component of an organometallic complex, ligand plays a key role on the physical and chemical properties of the metal complex. Consequently, developing new ligand scaffolds and modifying the mirco-structure of existing ligands to control the reactivity and catalytic performance of organometallic species have been the main theme of modern organometallic research. Aiming to developing a new generation of strongly electron-donating hetero-aryl ligands for non-noble metal catalysis, this project targets the synthesis, structure, and reactivity of heteroaryl complexes, as well as their catalytic application in organic synthesis. Starting from judiciously designed new donor group-functionalized heteroarene ligands, novel heteroaryl complexes of rare-earth metals, iron and cobalt will be synthesized; their reactivity toward various organic functionalities, nucleophiles, and oxidants will be explored; and reactive metal hydrocarbyls, hydrides, and amides supported by heteroaryl ligands will be accessed. On the basis of the stoichiometric studies, efficient non-noble metal catalysts supported by heteroaryl ligands will be developed to furnish a green and economic solution for the synthesis of conjugated organic materials and functionalized polymers.