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以三苯胺、芴酮等为原料,通过亲核加成反应合成了3个新型三苯胺衍生物:4-亚芴基肼撑亚甲基苯基二苯胺、双(4-亚芴基肼撑亚甲基苯基)苯胺和三(4-亚芴基肼撑亚甲基苯基)胺(a～c)。用FTIR、1HNMR、元素分析对3种化合物的结构进行了表征,并考察了其紫外吸收光谱、荧光光谱、电化学行为和热稳定性。结果表明,3个化合物(a～c)的薄膜均显示较强的红色荧光;且均具有明显的聚集诱导发光(Aggregation-induced emission,AIE)性能;其电离势(5.62～5.65 eV)与正电极(ITO)的功函数(4.8 eV)相匹配,可有效降低空穴注入的能垒,有利于空穴的传输;化合物(a～c)的热分解温度分别是317、292和303℃,均具有良好的热稳定性。
Three novel triphenylamine derivatives were synthesized by nucleophilic addition reaction using triphenylamine, fluorenone and the like as raw materials: 4-fluorenylidenehydrazinomethylenephenyldiphenylamine, bis (4-fluorenylidenehydrazin Methylenephenyl) aniline and tris (4-fluorenylidenehydrazinomethylenephenyl) amine (a to c). The structures of the three compounds were characterized by FTIR, 1HNMR and elemental analysis. Their UV absorption spectra, fluorescence spectra, electrochemical behaviors and thermal stability were also investigated. The results showed that all the three compounds (a ~ c) showed strong red fluorescence, and all had obvious AEG (Aggregation-induced emission) performance. The ionization potentials (5.62-5.65 eV) Electrode (ITO) work function (4.8 eV) match, which can effectively reduce the energy barrier of hole injection, is conducive to hole transport; compounds (a ~ c) thermal decomposition temperature is 317,292 and 303 ℃, All have good thermal stability.