Synthesis, two-photon absorption and AIE properties of multibranched thiophene-based triphenylamine derivatives with triazine core

• Published in: Science China. Chemistry Vol. 56; no. 9; pp. 1204 - 1212
• Main Authors: Gao, YuTing, Zhang, Hao, Jiang, Tao, Yang, Ji, Li, Bo, Li, Zhen, Hua, JianLi
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2013; Springer Nature B.V
• Subjects: Absorption cross sections; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Chloroform; Emission analysis; Photon absorption; Photons; Solvent effect; Z-扫描技术; 三嗪; 三苯基; 双光子吸收; 合成; 噻吩基; 属性; 胺衍生物; thiophene-based triphenylamine; two-photon absorption; aggregation-induced emission; 1,3,5-triazine
• ISSN: 1674-7291; 1869-1870
• DOI: 10.1007/s11426-013-4924-7

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.