文献类型：期刊文献

英文题名：A Ferrocene-Functionalized [2]Rotaxane with Two Fluorophores as Stoppers

作者：Zhang, Hui;Zhou, Bin;Li, Hong;Qu, Da-Hui[1];Tian, He

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

年份：2013

卷号：78

期号：5

起止页码：2091

外文期刊名：JOURNAL OF ORGANIC CHEMISTRY

收录：;EI(收录号：20131116106408);WOS:【SCI-EXPANDED(收录号:WOS:000315707500047)】；

基金：We thank the NSFC/China (20902024, 21272073, and 21190033), the National Basic Research 973 Program (2011CB808400), the Foundation for the Author of National Excellent Doctoral Dissertation of China (200957), the Fok Ying Tong Education Foundation (121069), the Fundamental Research Funds for the Central Universities (WJ1014001, WJ1213007), and the Innovation Program of Shanghai Municipal Education Commission for financial support.

语种：英文

外文关键词：Organometallics - Nuclear magnetic resonance spectroscopy - Molecular electronics - Electron transport properties - Iron compounds

摘要：In the past few decades, bistable [2]rotaxanes have been extensively studied because of their applications in the fields of functional molecules and molecular machines In this paper, a di-ferrocene-functionalized [2]rotaxane with two fluorophores as stoppers was designed, prepared, and studied. In this bistable [2]rotaxane, a dibenzo-24-crown-8 macrocycle functionalized with two ferrocene moieties as electron donors can reversibly shuttle between two distinct stations, namely, a dialkylammonium recognition site and a N-methyltriazolium recognition site, by external acid-base stimuli, which has been demonstrated using H-1 NMR spectroscopy. It has been shown that, by introducing two ferrocene units into the macrocycle component, the fluorescence of two fluorescent stoppers, namely, the anthracene fluorophore and the 4-morpholin-naphthalimide fluorophore, can be changed in an alternate mode by an adjustable, distance-dependent photoinduced electron transfer process that occurs between the ferrocene electron donors and each of the two fluorophores.