New aggregation-induced emission enhancement materials combined triarylamine and dicarbazolyl triphenylethylene moieties
作者:Haiyin Li、Zhenguo Chi、Bingjia Xu、Xiqi Zhang、Zhiyong Yang、Xiaofang Li、Siwei Liu、Yi Zhang、Jiarui Xu
DOI:10.1039/c0jm00599a
日期:——
A new class of compounds containing triarylamine and dicarbazolyl triphenylethylene moieties with high thermal stability and aggregation-induced emission enhancement properties was synthesized. The glass transition temperature and 5% weight loss temperature of 3B-TPA are up to 214.3 °C and 516.8 °C, respectively. The compounds exhibited significant photoinduced intramolecular charge-transfer properties. The aggregation considerably affected the π–π* transition and resulted in 6–7 nm red shift of the π–π* absorption wavelength at the peak in UV-vis spectra. The compounds could emit intense blue-green light in aggregated states.
合成了一类含有三芳基胺和二咔唑基三苯乙烯分子的新型化合物,该化合物具有高热稳定性和聚集诱导发射增强特性。3B-TPA 的玻璃化温度和 5% 失重温度分别高达 214.3 ℃ 和 516.8 ℃。化合物表现出明显的光诱导分子内电荷转移特性。聚合大大影响了π-π*转变,导致紫外可见光谱中峰值处的π-π*吸收波长红移 6-7 nm。这些化合物在聚集状态下可发出强烈的蓝绿光。