文献类型：期刊文献

英文题名：Achiral substituent- and stoichiometry-controlled inversion of supramolecular chirality and circularly polarized luminescence in ternary co-assemblies

作者：Wang, Fang[1];Lai, Liyun[1];Liu, Min[1];Zhou, Quan[1];Lin, Shaoliang[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：16

期号：17

起止页码：8563

外文期刊名：NANOSCALE

收录：;EI(收录号：20241615935310);WOS:【SCI-EXPANDED(收录号:WOS:001199695100001)】；

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 (JKD01221663).

语种：英文

外文关键词：Amino acids - Charge transfer - Circular polarization - Hydrogen bonds - Luminescence - Supramolecular chemistry

摘要：Handedness inversion of supramolecular chirality and circularly polarized luminescence (CPL) in assembled systems containing more than two components with higher complexity is of prominent importance to simulate biological multicomponent species and design advanced chiral materials, but it remains a considerable challenge. Herein, we have successfully developed ternary co-assembly systems based on aromatic amino acids, vinylnaphthalene derivatives and 1,2,4,5-tetracyanobenzene with effective chirality transfer. Notably, the handedness of supramolecular chirality and CPL can be readily inverted by changing the residues of amino acids, the substituents of achiral vinylnaphthalene derivatives, or by adjusting the stoichiometric ratio. The hydrogen bonds, charge transfer interactions, and steric hindrance are proved to be the crucial factors for the chirality inversion. This flexible control over chirality not only offers insights into developing multicomponent chiral materials with desirable handedness from simple molecular building blocks, but also is of practical value for use in chiroptics, chiral sensing, and photoelectric devices. Supramolecular chirality and CPL handedness of the ternary co-assemblies can be inverted flexibly by adjusting the stoichiometric ratio or by changing the achiral substituents including the amino acid residues and the substituted ethylene groups.