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Area of Science:

  • Supramolecular Chemistry
  • Organic Synthesis
  • Nanotechnology

Background:

  • Möbius aromaticity in nanostructures is of significant interest.
  • Designing complex molecular architectures with unique electronic properties is a key challenge.

Purpose of the Study:

  • To synthesize a novel Möbius nanobelt using specific building blocks.
  • To investigate the structural, electronic, and chiroptical properties of the synthesized nanobelt.

Main Methods:

  • Synthesis via nucleophilic aromatic substitution and reductive aromatization/oxidation.
  • Structural characterization using X-ray crystallography.
  • Spectroscopic analysis (1H NMR) and theoretical calculations.

Main Results:

  • A novel Möbius nanobelt was successfully synthesized and structurally confirmed.
  • The nanobelt exhibits distinct 1H NMR signal behavior compared to its macrocyclic precursor due to restricted rotation.
  • Theoretical calculations revealed localized aromatic ring currents, not global ones.
  • Enantiopure nanobelts were obtained, showing a notable absorption dissymmetry factor.

Conclusions:

  • The synthesized Möbius nanobelt possesses unique structural and electronic properties.
  • The arrangement of substituents significantly influences symmetry reflection in NMR spectra.
  • The study demonstrates a pathway to enantiopure Möbius nanostructures with potential chiroptical applications.