Fmoc-protected amino acids as luminescent and circularly polarized luminescence materials based on charge transfer interaction  

作　　者：Yiran Xia Aiyou Hao Pengyao Xing 

机构地区：[1]Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering,Shandong University,Ji'nan 250100,China

出　　处：《Chinese Chemical Letters》2022年第11期4918-4923,共6页中国化学快报（英文版）

基　　金：supported by the Qilu Young Scholarship Funding of Shandong University;supported by the National Natural Science Foundation of China(Nos.21901145,22171165);Natural Science Foundation of Jiangsu Province(No.BK20190209);the financial support from Youth cross-scientific innovation group of Shandong University(No.2020QNQT003)。

摘　　要：Fluorenylmethyloxycarbonyl(Fmoc)-protected amino acids are effective building blocks in self-assembled architectures at hierarchical levels,which however show limited luminescent properties and chiroptical activities.Here we introduce a charge-transfer strategy to build two-component luminescent materials with emerged circularly polarized luminescence properties.A library of Fmoc-amino acids was built,which selectively form charge-transfer complexes with the electron-deficient acceptor.Embedding in amorphous polymer matrix or physical grinding could trigger the charge-transfer luminescence with adjusted wavelengths in a general manner.X-ray diffraction results suggest the multiple binding modes between donor and acceptor.And,the solution-processed coassembly could selectively exhibit circularly polarized luminescence with high dissymmetry g-factors.This work illustrates a noncovalent charge-transfer strategy to construct luminescent and chiroptical organic composites based on the easy-accessible and economic chiral N-terminal aromatic amino acids.

关 键 词：Fmoc-amino acids Charge-transfer interaction Supramolecular chirality Multiple component coassembly 

分 类 号：TB332[一般工业技术—材料科学与工程]