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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

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Published on: February 6, 2020

Host-guest complexation driven dynamic supramolecular self-assembly.

Huacheng Zhang1, Kim Truc Nguyen, Xing Ma

  • 1Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore.

Organic & Biomolecular Chemistry
|January 5, 2013
PubMed
Summary
This summary is machine-generated.

Pillararene trimer and biviologen form dynamic supramolecular assemblies that transform from 0D to 3D with concentration. Other pillararenes form only spherical structures, highlighting the trimer

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science

Background:

  • Host-guest complexation is a key strategy for constructing dynamic supramolecular assemblies.
  • Pillararenes are macrocyclic hosts with tunable properties, widely used in supramolecular chemistry.
  • Biviologens are guest molecules that can form complexes with various hosts.

Purpose of the Study:

  • To investigate the formation of dynamic supramolecular self-assembly using pillararene trimer and biviologen.
  • To explore the concentration-dependent morphological transformations of these assemblies.
  • To compare the assembly behavior with a related macrocycle, 1,4-dimethoxypillar[5]arene.

Main Methods:

  • Host-guest complexation between pillararene trimer (1) and biviologen (2).
  • Fabrication of dynamic supramolecular self-assembly.
  • Concentration-dependent morphological analysis (0D to 3D transformation).
  • Comparative study using 1,4-dimethoxypillar[5]arene and biviologen (2).

Main Results:

  • Pillararene trimer (1) and biviologen (2) form dynamic supramolecular assemblies.
  • These assemblies exhibit a reversible multidimensional transformation from 0D to 3D structures based on concentration.
  • Assemblies formed by 1,4-dimethoxypillar[5]arene and biviologen (2) exclusively show spherical morphology under similar conditions.

Conclusions:

  • Pillararene trimer demonstrates unique capabilities in forming complex, concentration-responsive supramolecular architectures.
  • The specific structure of the pillararene (trimer vs. 1,4-dimethoxypillar[5]arene) significantly influences the resulting supramolecular assembly morphology.
  • This work provides insights into designing sophisticated dynamic materials through host-guest interactions.