文献类型：期刊文献

英文题名：A highly soluble polyhedral oligomeric silsesquioxane end-capped perylenediimide dye

作者：Zhuang, Xiao-Dong[1];Chen, Yu[1];Zhang, Bin[1];Li, Yongxi[1];Yu, Bo[1];Qiao, Wenhan[1]

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

年份：2010

卷号：34

期号：6

起止页码：1120

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000278275700016)】；

基金：We are grateful for the financial support of National Natural Science Foundation of China (20676034, 20876046), the Ministry of Education of China (309013) and Shanghai Municipal Educational Commission for the Shuguang fellowship (08GG10) and Shanghai Eastern Scholarship, respectively.

语种：英文

摘要：A highly soluble perylenediimide (PDI) dye with unusual polyhedral oligomeric silsesquioxane (POSS) molecules was synthesized by the reaction of an aminopropylisobutyl POSS (POSS-NH(2)) and 3,4,9,10-perylenetetracarboxylic dianhydride in the presence of Zn(OAc)(2). This material exhibits good thermal stability and high fluorescence quantum yield (Phi(F) = 1.0). Its fluorescence time profile displays biexponential decay, with fluorescence lifetimes of 9.27 +/- 0.26 ns (79.7%) and 2.55 +/- 0.03 ns (20.3%). Molecular modelling results show that the lengths of the molecular long-axis and short-axis are about 3.5 and 2.2 nm, respectively. The values of the HOMO, LUMO, ionization potential and electron affinity estimated from the electrochemical data are -6.05, -3.75, 6.45 and 4.16 eV, respectively.