文献类型：期刊文献

英文题名：A lockable light-driven molecular shuttle with a fluorescent signal

作者：Wang, Qiao-Chun[1]; Qu, Da-Hui[1]; Ren, Jun[1]; Chen, Kongchang[1]; Tian, He[1]

机构：[1]E China Univ Sci & Technol, Adv Mat Lab, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2004

卷号：43

期号：20

起止页码：2661

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：2004408392817);WOS:【SCI-EXPANDED(收录号:WOS:000221548600009)】；

语种：英文

外文关键词：cyclodextrins; molecular devices; photochemistry; rotaxanes; supramolecular chemistry

摘要：A turn on! A lockable photodriven molecular shuttle is based on a [2]rotaxane that consists of an α-cyclodextrin threaded by a stilbene derivative. The fluorescent signals originate from the naphthalimide stopper and indicate the position of the shuttle. Once unlocked, the device can be turned on by irradiation at 335 nm and turned off by irradiation at 280 nm. The shuttle can be locked or unlocked by the addition acid or alkali, respectively (see picture).