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Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Chiral three-dimensional supramolecular assemblies: colloidal onions, cubosomes, and hexosomes
De-Yin Wang1, Li-Jun Ren1, Hong-Kai Liu1
1Center for Synthetic Soft Materials, Key Laboratory of Functional Polymer Materials of Ministry of Education and Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China. weiwang@nankai.edu.cn.
Chiral heteroclusters form complex 3D supramolecular assemblies like cubosomes. Despite lacking external chirality, these structures exhibit chirality due to the ordered arrangement of their chiral units.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Nanotechnology
Background:
- Amphiphilic molecules self-assemble into diverse supramolecular structures.
- Chiral building blocks enable chiral transfer in one-dimensional (1D) assemblies.
- Chirality in three-dimensional (3D) supramolecular assemblies remains less understood.
Purpose of the Study:
- Investigate the supramolecular chirality of 3D assemblies (colloidal onions, cubosomes, hexosomes).
- Determine the origin of chirality in these 3D structures.
- Explore the ordered arrangement of chiral units in curved superstructures.
Main Methods:
- Synthesis of chiral heteroclusters.
- Self-assembly of these clusters into 3D supramolecular structures.
- Characterization using techniques to assess chirality (e.g., circular dichroism) and structure.
Main Results:
- 3D supramolecular assemblies (cubosomes, hexosomes, colloidal onions) were formed from chiral heteroclusters.
- These assemblies, lacking chiral external shapes or internal nanostructures, exhibited circular dichroism.
- Structural analysis indicated that the ordered arrangement of chiral units within curved superstructures is the source of supramolecular chirality.
Conclusions:
- Supramolecular chirality can arise in 3D assemblies from the ordered arrangement of chiral molecular units.
- This finding expands the understanding of chirality beyond 1D helical structures.
- Provides insights for designing and creating more diverse and complex chiral supramolecular assemblies.
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