Three-dimensional conjugated architectures involving conjugated branches with terminal EDOT groups attached onto a bithiophene core twisted by ca. 90° by steric interactions have been synthesized by Stille coupling reactions. The UV-Vis absorption spectra recorded in solution show complex spectral features that depend on both the size and chemical structure of the main conjugated segment and of the conjugated side chains. Thanks to the fixation of the terminal EDOT groups, these compounds undergo straightforward and complete electropolymerization to produce stable electrode materials. The analysis of the electrochemical and optical properties of the polymers by cyclic voltammetry and spectroelectrochemistry suggests that the electrochemical coupling of the terminal EDOT groups leads to the formation of Ï-conjugated networks the electrochemical and optical properties of which can be tuned through the length and chemical composition of the oligomeric conjugated links.
                                    通过斯蒂尔偶联反应合成了三维共轭结构,其中包括连接到
噻吩内核上的带有末端 EDOT 基团的共轭分支,该共轭分支通过立体相互作用扭曲了约 90°。在溶液中记录的紫外可见吸收光谱显示出复杂的光谱特征,这些特征取决于主共轭段和共轭侧链的大小和
化学结构。由于固定了末端的 EDOT 基团,这些化合物可以直接进行完全的电聚合,从而产生稳定的电极材料。通过循环伏安法和光谱电
化学法对聚合物的电
化学和光学特性进行的分析表明,末端 EDOT 基团的电
化学耦合导致形成了Ï-共轭网络,其电
化学和光学特性可通过低聚共轭链的长度和
化学成分进行调整。