Synthesis and electrochemical characterization of new optoelectronic materials based on conjugated donor–acceptor system containing oligo-tri(heteroaryl)-1,3,5-triazines
作者:Krzysztof R. Idzik、Peter Rapta、Piotr J. Cywinski、Rainer Beckert、Lothar Dunsch
DOI:10.1016/j.electacta.2010.03.076
日期:2010.7
A series of novel oligoarylenes based on donor–acceptor system, containing triazine moiety as an electron-transporting central core, have been prepared by electrochemical polymerization. The redox behaviour of poly(2,4,6-tri[p-(2-(3,4-ethylenedioxythienyl))-phenyl]-1,3,5-triazine) was studied by cyclic voltammetry and triple in situ ESR/UV–vis–NIR spectroelectrochemistry to get more details on the
通过电化学聚合制备了一系列基于供体-受体体系的新型低聚亚芳基,其中含有三嗪部分作为电子传输的中心核。通过循环伏安法和三原位ESR /研究了聚(2,4,6-三[ p-(2-(3,4-乙撑二氧噻吩基))-苯基] -1,3,5-三嗪)的氧化还原行为。紫外-可见-近红外光谱电化学可以更详细地了解薄膜中载流子的类型。为了获得所需的低聚亚芳基,已经通过Stille交叉偶联方法合成了具有各种电致变色侧基的三嗪核心单体。结构已通过1 H NMR确证,1313 C NMR和元素分析。单体在常见的有机溶剂(如氯仿,二氯甲烷或甲苯)中显示出良好的化学稳定性,并且在宽温度范围内也显示出出色的热稳定性。此外,它们的光物理性质已经通过使用荧光光谱法得以确立。电化学结果以及荧光光谱表明,三嗪的这些衍生物可以成功地用于有机发光二极管(OLED)的制造中。