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Bis-vinylogous Corrole: The First Expanded Corrole.

Paolesse1, Khoury, Della Sala F

  • 1Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", I-00173 Roma (Italy).

Angewandte Chemie (International Ed. in English)
|October 3, 1999
PubMed
Summary

The hydrochloride salt of an expanded corrole forms a stable dimeric structure in solution, confirmed by synthesis and spectroscopic analysis. This finding advances understanding of supramolecular chemistry and molecular assembly.

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Area of Science:

  • Supramolecular Chemistry
  • Organic Chemistry
  • Crystallography

Background:

  • Expanded corroles are macrocyclic compounds with unique electronic properties.
  • Understanding the self-assembly and stability of such molecules is crucial for their applications.
  • Hydrogen bonding plays a significant role in stabilizing molecular structures.

Purpose of the Study:

  • To synthesize and characterize a novel expanded corrole hydrochloride salt.
  • To elucidate the dimeric structure of the compound in both solution and solid states.
  • To investigate the factors contributing to its stability.

Main Methods:

  • Chemical synthesis of the expanded corrole derivative.
  • X-ray crystallography for solid-state structure determination.

Related Experiment Videos

  • Nuclear Magnetic Resonance (NMR) spectroscopy for solution-state structural analysis.
  • Electronic absorption spectroscopy to study electronic properties.

    • Main Results:

    • Successful synthesis of the target expanded corrole hydrochloride salt.
    • Confirmation of a stable dimeric structure stabilized by intermolecular hydrogen bonds.
    • Structural assignment validated through complementary spectroscopic techniques (NMR, electronic absorption).
    • Dimerization observed in both solid-state and solution.

    Conclusions:

    • The expanded corrole hydrochloride salt exhibits robust dimeric self-assembly driven by hydrogen bonding.
    • The dimeric structure is stable in solution, indicating potential for controlled molecular organization.
    • This study provides insights into the supramolecular chemistry of expanded corroles.