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An extremely stable interwoven supramolecular bundle

Fyfe1, Lowe, Stoddart

  • 1Department of Chemistry and Biochemistry, University of California, Los Angeles 90095-1569, USA.

Organic Letters
|May 16, 2000
PubMed
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A novel tritopic receptor forms strong supramolecular complexes with trifurcated trications. These complexes can be controllably disassembled using specific solvents, showcasing tunable host-guest chemistry.

Area of Science:

  • Supramolecular Chemistry
  • Organic Chemistry
  • Materials Science

Background:

  • Crown ethers and triphenylene derivatives are key components in supramolecular chemistry.
  • Designing receptors for complex guest molecules is crucial for advanced applications.
  • Understanding self-assembly and disassembly processes is fundamental in host-guest interactions.

Purpose of the Study:

  • To synthesize and characterize a novel tritopic receptor based on benzo[24]crown-8 macrorings and a triphenylene core.
  • To investigate the formation and structure of supramolecular complexes with trifurcated trications.
  • To explore the disassembly behavior of these complexes in response to solvent changes.

Main Methods:

  • Synthesis of the tritopic receptor.

Related Experiment Videos

  • Supramolecular complexation studies in solution (CDCl3/CD3CN).
  • X-ray crystallography for solid-state structure determination.
  • Solvent-induced disassembly experiments using dimethyl sulfoxide (CD3SOCD3).

    • Main Results:

    • The tritopic receptor successfully formed strong, bundle-like supramolecular complexes with trifurcated trications.
    • X-ray crystallography confirmed the formation of triply threaded superbundles in the solid state.
    • Progressive addition of CD3SOCD3 led to the complete dissociation of the superbundles through intermediate stages.

    Conclusions:

    • The designed tritopic receptor exhibits high affinity and selectivity for trifurcated trications.
    • The study demonstrates a controllable method for the disassembly of complex supramolecular architectures.
    • This work provides insights into the design principles for tunable host-guest systems.