Hierarchically Evolved Supramolecular Chirality Mediated by Arene-Perfluoroarene Interaction
Juncong Liang1, Heng Zhang1, Aiyou Hao1
1Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China.
ACS Applied Materials & Interfaces
|June 9, 2021
Summary
This study demonstrates orthogonal control over chiral coassemblies using hydrogen bonds and arene-perfluoroarene interactions. These synergistic effects enable the design of novel functional chiroptical materials with tunable properties.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Chiroptical Materials
Background:
- Designing functional chiroptical materials requires precise control over molecular assembly using weak forces.
- Orthogonal utilization of different non-covalent interactions offers a promising strategy for complex supramolecular architectures.
Purpose of the Study:
- To investigate the synergistic effects of hydrogen bonds and arene-perfluoroarene (AP) interactions in constructing chiral coassemblies.
- To explore the influence of these orthogonal interactions on nanostructure, luminescence, and chiroptical properties.
Main Methods:
- Modification of amino acids with achiral pyrene moieties to induce individual supramolecular tilt chirality.
- Coassembly of modified amino acids with melamine (via hydrogen bonds) and octafluoronaphthalene (OFN, via AP interactions) to form binary and ternary systems.
- Characterization of nanostructures and analysis of luminescent and chiroptical properties.
Main Results:
- Successful construction of synergistic binary and ternary coassemblies through orthogonal hydrogen bonding and AP interactions.
- Observation of altered nanostructures and luminescent properties upon introduction of these interactions.
- Realization of macroscopic chirality at the nanoscale, accompanied by inversion of circularly polarized luminescence (CPL).
Conclusions:
- Orthogonal control of supramolecular chirality, emission properties, nanostructure, and chiroptical activities is achievable.
- This approach enriches the design strategies for functional chiral composites with tunable chiroptical responses.
Keywords:
amino acidsarene-perfluoroarene interactionorthogonal interactionself-assemblysupramolecular chiralityMore Related Videos
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