文献类型：期刊文献

英文题名：Highly soluble perylene tetracarboxylic diimides and tetrathiafulvalene-perylene tetracarboxylic diimide-tetrathiafulvalene triads

作者：Zhang, Yu[1,2];Xu, Zheng[3];Cai, Liangzhen[4];Lai, Guoqiao[3];Qiu, Haixiao[1,2];Shen, Yongjia[1,2]

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;[3]Hangzhou Normal Univ, Minist Educ, Key Lab Organosilicon Chem & Mat Technol, Hangzhou 310012, Zhejiang, Peoples R China;[4]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2008

卷号：200

期号：2-3

起止页码：334

外文期刊名：JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

收录：;EI(收录号：20242616470656);WOS:【SCI-EXPANDED(收录号:WOS:000261839600031)】；

基金：This work was supported by National Natural Science Foundation of China (No. 20676036) and the Key Project of the Ministry of Education of China (No. 03053).

语种：英文

外文关键词：Donor; Acceptor; Tetrathiafulvalene; Perylene tetracarboxylic diimide; Photoinduced electron transfer

摘要：Two donor-sigma-acceptor-sigma-donor triads incorporating tetrathiafulvalene (TTF) and 3,4,9,10-perylene tetracarboxylic diimides (PDI) units were synthesized. The structures of the triads and their intermediates were characterized by H-1 NMR, C-13 NMR, MS, IR. The results of UV-vis and cyclic voltammetry (CV) of the triads indicated negligible intramolecular charge transfer (ICT) interaction in their ground states. The fluorescence and fluorescence lifetimes of the triads were reduced compared to PDIs, which evidently indicated that photoinduced electron transfer (PET) interaction occurred from the TTF unit to the PDI unit in the excited state. The fluorescence intensity of the triads could be reversibly modulated by sequential oxidation and reduction of the TTF unit using the chemical methods. Therefore two new fluorescence molecular switches based on TTF and PDI units were established. (C) 2008 Elsevier B.V. All rights reserved.