Synthesis of Fluorene-Bridged Arylene Vinylene Fluorophores: Effects of End-Capping Groups on the Optical Properties, Aggregation Induced Emission
作者:Guo-Feng Zhang、Tao Chen、Ze-Qiang Chen、Matthew P. Aldred、Xianggao Meng、Ming-Qiang Zhu
DOI:10.1002/cjoc.201500240
日期:2015.8
We have synthesized a series of fluorene‐based fluorophores, in which a central fluorene core has been modified with different peripheral arylene vinylene substituents that are able to activate aggregation‐induced emission (AIE) characteristics. 9,9‐Dioctylfluorene doubly end‐capped at the 2,7‐positions with triphenylethene groups, such as 4‐(2,2‐diphenylvinyl)phenyl (F1‐(2,2)‐HTPE) and 4‐(1,2‐diphenylvinyl)phenyl
我们合成了一系列基于芴的荧光团,其中中心芴核已被不同的周边亚芳基亚乙烯基取代基修饰,从而能够激活聚集诱导发射(AIE)特性。9,9-二辛基芴在2,7-位双封端,带有三苯基乙烯基团,例如4-(2,2-二苯基乙烯基)苯基(F1-(2,2)-HTPE)和4-(1,2合成了-二苯基乙烯基)苯基(F1-(1,2)-HTPE),并与四苯基乙烯类似物(F1-TPE)进行了比较。两个(2,2)-HTPE和F1-(1,2)-HTPE辉光带与发射最大值THF溶液深蓝色荧光(F1- λ EM 426和403纳米),分别。该λ EMF1-(2,2)-HTPE固态固态红移至458 nm,F1-(1,2)-HTPE固态固态红移至437 nm。荧光量子产率(ø ˚F)的(2,2)-HTPE(F1- ø ˚F = 35.1%)和F1-(1,2)-HTPE(ø ˚F = 26.2%)被发现在溶液中要高的比较到F1-TPE的近猝灭(ø