Photochromic thiophene oligomers based on bisthienylethene: syntheses, photochromic and two-photon properties
作者:Yanli Feng、Yongli Yan、Sheng Wang、Weihong Zhu、Shixiong Qian、He Tian
DOI:10.1039/b608545h
日期:——
A series of novel, functional symmetric and unsymmetric photochromic thiophene oligomers based on bisthienylethenes (BTEs) were synthesized via control of the reaction condition with a Suzuki coupling method. Their optical, photochromic quantum yields, two-photon and electrochemical properties in THF as well as in poly(methylmethacrylate) (PMMA) films were measured and discussed. The fluorescence emission can be tuned reversibly by alternating irradiation with UV and visible light. These BTEs could be used as nanowires, fluorescent switch and electrochemical switch.
基于双噻吩乙烯(BTEs)的一系列新型、功能性对称与非对称光致变色噻吩低聚物,通过Suzuki偶联反应控制条件合成。测定了它们在四氢呋喃和聚甲基丙烯酸甲酯(PMMA)薄膜中的光学性质、光致变色量子产率、双光子性质及电化学性质并进行了讨论。通过交替使用紫外光和可见光进行光照,可实现其荧光发射的可逆调节。这些BTEs可用作纳米线、荧光开关和电化学开关。