文献类型：期刊文献

英文题名：Amplified and Inverted Circularly Polarized Luminescence with Color Evolution from Multiple-Constituent Coassemblies Directed by Diverse Noncovalent Forces

作者：Sang, Yunxiao[1];Feng, Chen[3];Liu, Min[1];Hao, Ji-Na[1];Zhou, Quan[1];Lin, Shaoliang[1];Zhang, Weihua[2];Wang, Fang[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Nanjing Agr Univ, Coll Sci, Jiangsu Key Lab Pesticide Sci, Nanjing 210095, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：17

期号：46

起止页码：63727

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20254719547522);WOS:【SCI-EXPANDED(收录号:WOS:001612285300001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (52303271) and the Fundamental Research Funds for the Central Universities (ZJ25195012).

语种：英文

外文关键词：circularly polarized luminescence; multiple-constituentcoassembly; noncovalent forces; chirality; supramolecular chemistry

摘要：Rationally utilizing diverse noncovalent interactions to direct multicomponent chiral coassemblies is crucial for constructing circularly polarized luminescence (CPL) materials with high dissymmetry factor (g lum) and precisely controlled emission colors and handedness, which are essential for advanced optical devices and display technologies. Herein, we show the programmable coassembly of fluorenylmethyloxycarbonyl (Fmoc)-conjugated phenylalanine (Phe) and pyrene derivatives (Py1 and Py2) with different alkyl spacer lengths, which shall form ternary coassemblies with metal ions, octafluoronaphthalene (OFN), or 1,2,4,5-tetracyanobenzene (TCNB) through coordination, arene-perfluoroarene, or charge transfer forces, to enhance and flexibly control the chiroptical properties. The binary assemblies of Phe/Py1 and Phe/Py2 display opposite CPL with g lum values around 10-2. Strikingly, incorporating metal ions into the binary coassembly systems inverts the handedness of CPL and significantly amplifies the |g lum| values (reaching up to 0.15). CPL properties of Phe/Py1-2 can be further controlled by coassembling with OFN and TCNB, achieving inverted handedness, tunable emission bands, and dissymmetry factors. This work provides insight into how diverse noncovalent forces drive multiple-constituent chiral coassembly through different pathways, which would be helpful for the development of highly efficient and significantly tuned CPL materials.