拓扑结构不同金属有机聚合物的电化学聚合行为和光谱电化学性质

Topological Metallopolymers Synthesized by Electropolymerization and Their Photoelectric Properties

金属有机聚合物的拓扑结构是影响其光电性质的重要原因之一。通过吡啶配体不同位点引入的电化学活性基团乙烯基或乙炔基,在电极表面电化学聚合制备了拓扑结构不同的钌金属有机聚合物薄膜,并利用循环伏安、紫外-可见吸收光谱、红外反射光谱、扫描电子显微镜等手段对其电化学特性、光电性质、表面形貌等性质进行了表征。结果表明,电活性配合物反应活性位点的空间位阻效应影响了电化学聚合的效率,其不同拓扑结构的聚合产物具有明显的光谱电化学性质差异。

The topological structure of metallopolymers is one of the important reasons affecting their photoelectric properties.By introducing vinyl or alkynyl groups on different sites of the pyridine ligand,pyridine-ruthenium metallopolymers with different topological structures are prepared on the electrode surface by electrochemical polymerization.Additionally,UV-visible absorption spectra,infrared reflection spectra,scanning electron microscopy and electrochemical techniques are used to characterize the properties and morphologies of the above metallopolymers.The results show that the monomers with different topological structures exhibit different polymerization efficiency due to the effect of steric hindrance,and their polymerization products have obvious differences in photoelectric properties.