共轭型过渡金属杂环化合物作为许多现代有机反应的关键中间体而备受关注。但迄今，有关共轭型过渡金属杂环合成方法学的研究报道尚不多，并且除了本课题组的数篇报道以外尚无系统研究此类化合物转化关系的报道。基于进展良好的前期研究基础，本项目拟开展各种共轭型过渡金属杂环之间的转化以及金属杂环与有机环状分子的转化的深入研究，力争开拓成制备共轭型过渡金属杂环的通用方法以及合成特殊结构有机环的全新方法；利用所构筑金属杂环的特殊稳定性和反应活性对一些重要的现代有机合成反应进行相关机理研究，为新型有机分子的合成设计提供理论依据并加以实验验证；根据产物的结构特征，选择具有代表性的化合物深入研究其化学性质及光、电、磁学等物理性质并进行结构调控和改性，为性能和应用开发奠定基础。

As an important branch of metallacycle chemistry, the synthetic methodology and reactivity studies of conjugated metallacycles containing transition metals are interesting, yet seldom reported. Systematic studies about the conversion of these species are only reported by our group.in a few paper. In this proposal, we will study the conversion of various conjugated metallacycles, as well as the interconversion of conjugated metallacycles and organic ring compounds. These conversions are significant because they could be developed into general and efficient methods to construct novel conjugated metallacycles or organic rings. With tunable reactivities and, stabilities, these products may provide new insights into the mechanisms of some important OMCOS (Organometallic Chemistry Directed towards Organic Synthesis) reactions. We will also study the optical, electronical and magnetic properties of these compounds, thus building up the structure-property relationship towards the application.