Off-on-off luminescent switching of a dye containing imidazo[4,5-f][1,10]phenanthroline  

作　　者：Hai Guang Zhang Xu Tang Tao Kao Shan Chen Chun Xue Yuan Shi Na Yan Min Hua Jiang 

机构地区：[1]College of Chemistry Science,Qufu Normal University,Qufu 273165,China [2]State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China [3]School of Life Science,Shandong University,Jinan 250100,China

出　　处：《Chinese Chemical Letters》2011年第6期647-650,共4页中国化学快报（英文版）

基　　金：the financial support of the State National Natural Science Foundation of China (No.50325311);National 863 Project Foundation of China(No.2007AA10Z334)

摘　　要：A new acid-base fluorescent switch containing both imidazo[4,5-f][1,10]-phenanthroline and triphenylamine groups has been synthesized.Its fluorescence emissions and absorptions can be reversibiy changed through protonation/deprotonation of imidazole and amine moiety by controlling the intramolecular charge transfer（ICT） process,leading to off-on-off fluorescent molecular switching.A new acid-base fluorescent switch containing both imidazo[4,5-f][1,10]-phenanthroline and triphenylamine groups has been synthesized.Its fluorescence emissions and absorptions can be reversibiy changed through protonation/deprotonation of imidazole and amine moiety by controlling the intramolecular charge transfer（ICT） process,leading to off-on-off fluorescent molecular switching.

关 键 词：Fluorescence switch Imidazo[4 5-f][1 10]phenanthroline Triphenylamine Intramolecular charge transfer（ICT） 

分 类 号：O657.3[理学—分析化学] O614.33[理学—化学]