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Updated: Sep 20, 2025
09:26
Synthesis and Characterization of Supramolecular Colloids
Published on: April 22, 2016
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Supramolecular cuboctahedra with aggregation-induced emission enhancement and external binding ability
Zhe Zhang1, Qixia Bai1, Erendra Manandhar2
1Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University Guangzhou-510006 China xietingzheng@gzhu.edu.cn chemwps@csu.edu.cn.
Chemical Science
|June 10, 2022
Summary
Researchers developed a novel strategy to create aggregation-induced emission (AIE) supramolecular cages using sulfur oxidation and metal coordination. This method offers a new route to tunable fluorescent materials and stimuli-responsive luminescent supramolecular cages.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Organic Chemistry
Background:
- Aggregation-induced emission (AIE) is a phenomenon observed in molecules that become highly emissive upon aggregation.
- Supramolecular chemistry has expanded AIE applications beyond small molecules to complex assemblies.
- The restriction of intramolecular vibrations (RIV) is a key mechanism underlying AIE.
Purpose of the Study:
- To present a novel strategy for constructing AIE-supramolecular cages.
- To explore the synergistic effects of coordination-driven self-assembly and oxidation for achieving AIE properties.
- To investigate the formation of single cage-sized nanowire structures and their characterization.
Main Methods:
- Coordination-driven self-assembly of ligands with metal ions (zinc).
- Oxidation of sulfur atoms within the supramolecular structure.
- Characterization using 2D DOSY, ESI-MS, TWIM-MS, UV-vis, and fluorescence spectroscopy.
- Directional electrostatic interactions for nanowire formation.
Main Results:
- Ligands L1 and L2 were successfully assembled into supramolecular cages S1 and S2 with zinc ions.
- S1 exhibited distinct AIE properties, while S2 showed remarkable fluorescence enhancement compared to their respective ligands.
- Single cage-sized nanowire structures were formed through specific electrostatic interactions.
- Adducts of zinc porphyrin and supramolecules were successfully synthesized and characterized.
Conclusions:
- A new, feasible strategy for constructing AIE-supramolecular cages has been established.
- The synergistic effects of coordination and oxidation provide an effective route to tune fluorescence properties.
- The developed protocol enriches the field of tunable fluorescent materials and opens avenues for stimuli-responsive luminescent supramolecular cages.
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