Synthesis, two-photon absorption and AIE properties of multibranched thiophene-based triphenylamine derivatives with triazine core
作者:YuTing Gao、Hao Zhang、Tao Jiang、Ji Yang、Bo Li、Zhen Li、JianLi Hua
DOI:10.1007/s11426-013-4924-7
日期:2013.9
Two new multibranched thiophene-based triarylamine derivatives with 1,3,5-triazine core are synthesized and characterized. Their one- and two-photon absorption properties and aggregation-induced emission effect have been investigated. Both the STAPA-based compounds are AIE active. The two-photon absorption (2PA) cross sections measured by the open aperture Z-scan technique are determined to be 620 and 1610 GM for STAPA-a and STAPA-b in chloroform, respectively, which dramatically increase with the introduction of alkyl chains. The relationship between their structures and properties on one- and two-photon absorption and aggregation-induced emission is discussed, which allows us to examine the effect of introducing alkyl chains. In addition, solvent effects also show a significant influence on the 2PA cross section. The two compounds with excellent AIE and 2PA properties provide attractive alternatives for the biophotonic materials.
合成并表征了两种新的以 1,3,5 三嗪为核心的多支链噻吩基三芳基胺衍生物。研究了它们的单、双光子吸收特性和聚集诱导发射效应。这两种基于 STAPA 的化合物都具有 AIE 活性。通过开孔 Z 扫描技术测得,STAPA-a 和 STAPA-b 在氯仿中的双光子吸收(2PA)截面分别为 620 GM 和 1610 GM,且随着烷基链的引入而显著增加。我们讨论了它们的结构和特性与单光子和双光子吸收及聚集诱导发射之间的关系,从而研究了引入烷基链的影响。此外,溶剂效应对 2PA 截面也有显著影响。这两种化合物具有出色的 AIE 和 2PA 特性,为生物光子材料提供了极具吸引力的替代品。