文献类型：期刊文献

英文题名：A Perylene-Bridged Switchable [3]Rotaxane Molecular Shuttle with a Fluorescence Output

作者：Cao, Zhan-Qi[1,2];Li, Hong[1,2];Yao, Jian[1,2];Zou, Lei[1,2];Qu, Da-Hui[1,2];Tian, He[1,2]

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

年份：2015

卷号：4

期号：3

起止页码：212

外文期刊名：ASIAN JOURNAL OF ORGANIC CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000350907500004)】；

基金：We thank the NSFC, China, (21272073, 21190033, and 21302056), the National Basic Research 973 Program (2011CB808400), the Fok Ying Tong Education Foundation (121069), the Fundamental Research Funds for the Central Universities, the Innovation Program of Shanghai Municipal Education Commission, and the Science Fund for Creative Research Groups (21421004) for financial support.

语种：英文

外文关键词：fluorescence; mechanically interlocked molecules; perylene bisimides; rotaxanes; shuttling motion

摘要：A bistable bis-branched [3]rotaxane with a perylene bisimide (PBI) chromophore that separates two mechanically interlocked [2]rotaxane arms including a diferrocene-functionalized dibenzo-24-crown-8 ring, was designed, prepared, and characterized by (HNMR)-H-1 and (CNMR)-C-13 spectroscopy and HR-ESI mass spectrometry. The uniform relative shuttling movement of target [3]rotaxane in response to external acid-base stimuli was confirmed by (HNMR)-H-1 spectroscopy. Furthermore, the shuttling motion of the macrocycles in the system was accompanied by a remarkably visual fluorescence change due to the distance-dependent photoinduced electron transfer process from the ferrocene units to the PBI fluorophore. This kind of rotaxane has important potential for designing more sophisticated mechanically interlocked molecules with controllable functions.