文献类型：期刊文献

英文题名：Triptycene-scaffolded tetraphenylethylenes with irregular temperature-dependence-AIE

作者：Wang, Lijun[1,2];Li, Wenjie[1,2];Wang, Zhaoxia[1,2];Luo, Qianfu[1,2]

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

年份：2019

卷号：60

期号：5

起止页码：439

外文期刊名：TETRAHEDRON LETTERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000457665500011)】；

语种：英文

外文关键词：Triptycene; Triphenylethene; Tetraphenylethylene; AIE

摘要：A series of new tetraphenylethylene monomer, dimer and three-dimensional trimer based triptycene-bridged triphenylethenes has been constructed. Their structures were clearly confirmed and the irregular fluorescent behaviors at different temperatures and solvents were investigated. Results showed the new tetraphenylethylenes performed remarkable aggregation-induced emission (AIE) properties and the emission intensities are dependent on temperature and viscosity. Compared with the model tetraphenylethylene without connecting triphenylethylene, the fluorescence quantum yields of the titled triptycene-scaffolded tetraphenylethylenes in aggregation are greater than tetraphenylethylene and increased as the increasing of the triphenylethylene units. (C) 2018 Elsevier Ltd. All rights reserved.