Engineering intelligent chiral silver cluster-assembled materials for temperature-triggered dynamic circularly polarized luminescence  

作　　者：Jia-Yin Wang Jia-Wang Yuan Xue-Mei Liu Ying-Jie Liu Feng Bai Xi-Yan Dong Shuang-Quan Zang 

机构地区：[1]Key Laboratory for Special Functional Materials of Ministry of Education,Henan University,Kaifeng,China [2]College of Chemistry,Zhengzhou University,Zhengzhou,China [3]College of Chemistry and Chemical Engineering,Henan Polytechnic University,Jiaozuo,China

出　　处：《Aggregate》2024年第3期308-314,共7页聚集体（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Number:92061201 U21A20277;Thousand Talents(Zhongyuan Scholars)Program of Henan Province,Grant/Award Number:234000510007;Excellent Youth Foundation of Henan Scientific Committee,Grant/Award Number:232300421022。

摘　　要：The development of stimuli-responsive circularly polarized luminescence(CPL)materials is quite attractive but challenging.Here,a pair of atomically precise enan-tiomers R/S-Ag20 nanoclusters has been synthesized using chiral acid ligands.And then,stimuli-responsive CPL materials were developed by assembling the chiral silver nanoclusters with an achiral bridging ligand.The atomically precise silver cluster-assembled materials produce CPL with a dissymmetry factor(|glum|)of 1×10-3,through the high-efficiency chiral induction process.More interestingly,the single CPL band at room temperature could quickly transform into highly separated dual CPL emissions at low temperature.This study provides a new strategy for the rational functionalization of chiral silver clusters in preparing cluster-based CPL emitters and enriches the types of stimuli-responsive CPL materials.

关 键 词：chiral silver clusters chirality transfer circularly polarized luminescence cluster-assembled materials THERMOCHROMISM 

分 类 号：O62[理学—有机化学]