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Modular Molecular Self‐Assembly for Diversified Chiroptical Systems
Author(s) -
Wang Zhuoer,
Zhang Heng,
Hao Aiyou,
Zhao Yanli,
Xing Pengyao
Publication year - 2020
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202002036
Subject(s) - supramolecular chemistry , chirality (physics) , luminescence , materials science , self assembly , ternary operation , nanotechnology , supramolecular chirality , modular design , rational design , nanostructure , molecule , chemistry , computer science , optoelectronics , symmetry breaking , organic chemistry , physics , chiral symmetry breaking , quantum mechanics , nambu–jona lasinio model , programming language , operating system
Bottom‐up multicomponent molecular self‐assembly is an efficient approach to fabricate and manipulate chiral nanostructures and their chiroptical activities such as the Cotton effect and circular polarized luminescence (CPL). However, the integrated coassembly suffers from spontaneous and inherent systematic pathway complexity with low yield and poor fidelity. Consequently, a rational design of chiral self‐assembled systems with more than two components remains a significant challenge. Herein, a modularized, ternary molecular self‐assembly strategy that generates chiroptically active materials at diverse hierarchical levels is reported. N ‐terminated aromatic amino acids appended with binding sites for charge transfer and multiple hydrogen bonds undergo the evolution of supramolecular chirality with unique handedness and luminescent color, generating abundant CPL emission with high luminescence dissymmetry factor values in precisely controlled modalities. Ternary coassembly facilitates high‐water‐content hydrogel formation constituted by super‐helical nanostructures, demonstrating a helix to toroid topological transition. This discovery would shed light on developing complicated multicomponent systems in mimicking biological coassembly events.