A series of short axially symmetrically 1,3,6,8-tetrasubstituted pyrene-based green and blue emitters with 4-tert-butylphenyl and arylamine attachments
作者:Ran Zhang、Yun Zhao、Tengfei Zhang、Lu Xu、Zhonghai Ni
DOI:10.1016/j.dyepig.2016.03.020
日期:2016.7
hole-transporting arylamine attachments at 3,6-sites of pyrene core were designed and synthesized based on stepwise synthetic strategy. These compounds were structurally characterized and their photoelectric properties were investigated by spectroscopy, electrochemical and theoretical studies. The results show that the incorporation of different arylamine units into pyrene core can tune the electronic structures
一系列短的轴向对称的1,3,6,8-四取代pyr基衍生物(4a - 4c),带有两个4-叔基于逐步合成策略,设计合成了1,8-位丁基-丁基苯基链段和of核3,6-位上的两个空穴传输芳基胺。对这些化合物进行了结构表征,并通过光谱学,电化学和理论研究研究了它们的光电性能。结果表明,将不同的芳基胺单元掺入pyr核中可以调节化合物的电子结构,并且poly的多取代构型可以有效抑制分子间的π-π相互作用,因此导致相对较高的绝对荧光量子效率。这些化合物表现出很高的热稳定性,并可以形成形态稳定的非晶态薄膜,玻璃化转变温度在156–189°C的范围内。分别对于4b和4c获得了-1和2.41cd A -1。