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Updated: May 22, 2025
09:26
Synthesis and Characterization of Supramolecular Colloids
Published on: April 22, 2016
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Solvent Effect on the Chiral Arrangement for Two Achiral Metal-Organic Colloids in the Vortex Field: Rheological
Biao Guo1,2, Wen-Hui Zheng1,3, Jian-Cai Huang1
1College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, P.R. China.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|May 21, 2025
Summary
Achiral metal-organic colloids can exhibit chirality in a vortex field. The Zn3L/DMSO colloid forms a reversible chiral arrangement due to its viscoelasticity, unlike the Zn3L/DMF colloid.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Physical Chemistry
Background:
- Macroscopic chirality and chiroptical activity are observed in vortex fields.
- Achiral compounds can display chiroptical activity, suggesting induced chiral arrangements.
Purpose of the Study:
- Investigate vortex-responsive chiroptical properties of two achiral metal-organic colloids (Zn3L/DMSO and Zn3L/DMF).
- Elucidate the relationship between rheological properties and vortex-induced chirality.
Main Methods:
- Comparative study of Zn3L/DMSO and Zn3L/DMF colloids under vortex conditions.
- Rheological analysis to assess viscoelasticity and thixotropy.
- Chiroptical measurements to detect chirality.
Main Results:
- Zn3L/DMSO colloid exhibited chiroptical activity in the vortex field.
- Zn3L/DMF colloid remained chiroptically silent.
- Zn3L/DMSO's strong solvent-colloid interactions led to viscoelasticity and reversible thixotropy, enabling chiral arrangement.
- Addition of molecule D enhanced Zn3L/DMSO's properties and potential for sustained chiroptical activity.
Conclusions:
- Vortex-induced chirality in supramolecular colloids is dependent on rheological properties.
- Zn3L/DMSO's viscoelasticity and thixotropy facilitate reversible chiral arrangement in a vortex.
- This study offers insights into principles of chiroptical properties in colloids.
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