论文部分内容阅读
由于硼元素所特有的一些性质,如硼原子空的p轨道与π-共轭体系的π*轨道间的pπ-π*共轭效应,与Lewis碱络合所表现出的强Lewis酸性以及为获得足够的动力学稳定性在硼原子上所引入的大体积芳香取代基使之表现出的立体位阻效应等,将硼引入到π-共轭体系可以赋予体系一些独特的光电性能,因此近年来含硼π-共轭材料引起了人们极大的研究兴趣。这类材料已经显示出非常广阔的应用前景,可以用作非线性光学材料、双光子吸收和发光材料、有机电致发光器件中的电子传输材料和发光材料以及化学传感器等。本文根据π-共轭体系分子结构的不同,对有机硼π-共轭材料包括硼取代基位于末端的线形π-共轭体系、硼原子位于中心的星形π-共轭体系、硼原子位于主链的π-共轭聚合物体系、硼桥联的并环π-共轭体系以及硼取代基位于侧链的π-共轭体系等的研究进展进行了综述,并对该领域的发展前景进行了展望。
Due to some properties peculiar to boron, such as the pπ-π * conjugation between π orbital of π-conjugated p-orbitals and the empty space of boron atoms, strong Lewis acidity complexation with Lewis base and Get sufficient dynamic stability of the boron atoms introduced by the large volume of aromatic substituents so that it shows the steric hindrance effect, the introduction of boron into the π-conjugated system can give the system some unique optical properties, so in recent years Boron-containing π-conjugated materials have aroused great interest in research. Such materials have shown a very broad application prospects, can be used as nonlinear optical materials, two-photon absorption and luminescent materials, organic electroluminescent devices electron transport materials and luminescent materials and chemical sensors. In this paper, based on the different molecular structure of π-conjugated system, the organic boron π -conjugated material includes a linear π-conjugated system in which the boron substituent is located at the terminal, the boron atom is located in the central star π -conjugated system, The progress of the π-conjugated polymer systems in the main chain, the bridged bridged π-conjugated systems and the π-conjugated systems in which the boron substituents are located on the side chains are summarized and the development prospects in this field are also reviewed Have a look.