文献类型：期刊文献

英文题名：Synthesis and properties of a tetrathiafulvalene-perylene tetracarboxylic diimide-tetrathiafulvalene dyad

作者：Zhang, Yu[1,2];Cai, Liang-Zhen[3];Wang, Cheng-Yun[1,2];Lai, Guo-Qiao[4];Shen, Yong-Jia[1,2]

机构：[1]E China Univ Sci & Technol, Labs Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[4]Hangzhou Normal Univ, Minist Educ, Key Lab Organosilicon Chem & Mat Technol, Hangzhou 310012, Zhejiang, Peoples R China

年份：2008

卷号：32

期号：11

起止页码：1968

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000261746000018)】；

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

摘要：A donor-acceptor-donor dyad 4 involving2-sulfur-3-methylthio-6,7-bis(hexylthio)-tetrathiafulvalene(TTF) as a donor attached directly to N,N'-dibutylperylene-3,4,9,10-tetracarboxylic diimide (PDI) as an acceptor was synthesized by condensation of N, N'-dibutyl-1,6-dibromo-3,4,9,10-perylenetetracarboxylic diimide and 2-(2-cyanoethylthio3-methylthio-6,7-bis(hexylthio)tetrathiafulvalene. The cyclic voltammetric (CV) data implied significant intramolecular interaction and the absorption spectrum indicated that there was an intramolecular charge transfer (ICT) interaction between TTF and PDI moieties in dyad 4. Comparing with PDI 13, the fluorescence emission intensity of dyad 4 was quenched almost quantitatively, which might result from the photo-induced electron transfer (PET) interaction between the PDI and TTF moieties in dyad 4. The fluorescence intensity of dyad 4 could be reversibly modulated by sequential oxidation and reduction of the TTF unit using chemical methods. Thus dyad 4 can be regarded as a new reversible fluorescence-redox dependent molecular switch.