平面Möbius芳香化合物的卤代和偶联反应研究

相对于已被广泛研究的Hückel芳香化合物，有关Möbius芳香化合物的研究相当匮乏，尤其缺少衍生化的方法，极大地限制了其发展。卤代和偶联反应是芳香化合物的两类重要反应，是芳香化合物官能团化的常用手段。本项目拟以具有平面Möbius芳香性的碳龙配合物为研究底物，对其卤代和偶联反应进行研究，以期能发现和发展一些全新的反应，借此丰富碳龙配合物衍生化的方法。在此基础上，合成一系列功能性碳龙配合物，并对其性能和应用进行探索。更为重要的是，由于碳龙配合物利用金属d轨道参与π共轭形成平面Mobius芳香化合物，具有不同于传统Hückel芳香体系pπ-pπ共轭的dπ-pπ共轭，而表现出许多截然不同的性质。因此，对碳龙配合物的卤代和偶联反应研究，不仅可以发现一些全新的反应，丰富碳龙配合物衍生化的方法，促进碳龙化学的应用研究，还可以借此深化对平面Möbius芳香体系的理解和认知，促进芳香化学的发展。

Compared with the widely studied Hückel aromatic compounds, the research on Möbius aromatic compounds is relatively scarce, especially, the absence of derivatization methods significantly limits its development. Halogenation and coupling reactions are two important and effective means for the functionalization of aromatic compounds. This project intends to study the halogenation and coupling reactions of carbolong complexes with planar Möbius aromaticity, in order to discover and develop some new reactions. In this way, the derivatizations of carbolong complexes are enriched. On this basis, a series of functional carbolong complexes are synthesized, and their properties and applications will be investigated. More importantly, due to the use of metal d orbital to participate in the π-conjugation and form planar Möbius aromaticity, carbolong complexes have dπ-pπ conjugation, which is different from pπ-pπ conjugation in traditional organic Hückel aromatic systems, and may exhibit many distinct properties. Therefore, the research on halogenation and coupling reactions of planar Möbius aromatic carbolong complexes can not only discover some new reactions, enrich the derivative methods of carbolong complexes and promote the application research of carbolong chemistry, but also deepen the understanding of planar Möbius aromatic systems and promote the development of aromatic chemistry.