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Helicenic N-heterocyclic carbene copper(I) complex displaying circularly polarized blue fluorescence.

Etienne S GauthierDominika KaczmarczykSamuel Del FréLudovic FavereauElsa CaytanMarie CordierNicolas VanthuyneJ A Gareth WilliamsMonika Srebro-HooperJeanne Crassous
Published in: Dalton transactions (Cambridge, England : 2003) (2022)
Enantiopure copper(I) chloride complexes bearing a monodentate N -(carbo[6]helicenyl)-NHC ligand have been prepared and characterized experimentally and computationally. Their high stability enables the stereochemistry to be probed by X-ray crystallography and NMR spectroscopy. The resolved enantiomeric complexes emit circularly polarized blue fluorescence with g lum ∼1.3 × 10 -3 in solution. The photophysical and chiroptical properties of these systems, with their helicene-centred origin, are similar to those of the organic helicene-benzimidazole precursor proligand, although the reverse axial chirality configuration is preferentially observed for the complex compared to the ligand.
Keyphrases
  • single molecule
  • energy transfer
  • high resolution
  • oxide nanoparticles
  • molecular docking
  • molecular dynamics simulations
  • magnetic resonance imaging
  • magnetic resonance
  • mass spectrometry
  • water soluble
  • quantum dots