Off–on–off luminescent switching of a dye containing imidazo[4, 5-f][1, 10]phenanthroline
摘要:
A new acid base fluorescent switch containing both imidazo[4,541[1,10]-phenanthroline and triphenylamine groups has been synthesized. Its fluorescence emissions and absorptions can be reversibly 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. (C) 2010 Hai Guang Zhang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.