Supramolecular self-assembling strategy for constructing cucurbit[6]uril derivative-based amorphous pure organic room-temperature phosphorescence complex featuring extra-high efficiency  

作　　者：Chunhui Li Xiuqin Li Qiaochun Wang 

机构地区：[1]Key Laboratory for Advanced Materials,Joint International Research Laboratory of Precision Chemistry and Molecular Engineering,Feringa Nobel Prize Scientist Joint Research Center,Frontiers Science Center for Materiobiology and Dynamic Chemistry,Institute of Fine Chemicals,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China

出　　处：《Chinese Chemical Letters》2022年第2期877-880,共4页中国化学快报（英文版）

基　　金：financially supported by Shanghai Municipal Science and Technology Major Project (No.2018SHZDZX03);National Natural Science Foundation of China (Nos.21788102,21572063);the Fundamental Research Funds for the Central Universities。

摘　　要：The preparation of amorphous pure organic room-temperature phosphorescence materials with high efficiency is still a challenging task. Herein, we introduce a CB[6] derivative-based supramolecular selfassembling strategy. A water soluble and ellipsoidal deformed CB[6] derivative is used to self-assemble with 4-(4-bromophenyl)-1-methylpyridin-1-ium chloride, bromide and hexafluorophosphate in water. After freeze-drying, the obtained amorphous complexes exhibit brilliant green phosphorescence emission under ambient conditions, with phosphorescence efficiency up to 59%, 60% and 72%, respectively. This is the first report of amorphous non-polymeric pure organic room-temperature phosphorescence with such a high efficiency. In view of the dynamic self-assembling property, the complexes are responsive to water,which could enable information encryption.

关 键 词：Room temperature phosphorescence AMORPHOUS CUCURBITURIL Supramolecular self-assembling Heavy-atom effect 

分 类 号：O641.4[理学—物理化学] TB34[理学—化学]