Modulation of Chiroptical and Photophysical Properties in Helicenic Rhenium(I) Systems: The Use of an <i>N</i>‐(Aza[6]helicenyl)‐NHC Ligand
Etienne S. Gauthier, Laura Abella, Elsa Caytan, Thierry Roisnel, Nicolas Vanthuyne, Ludovic Favereau, Monika Srebro‐Hooper, J. A. Gareth Williams, Jochen Autschbach, Jeanne Crassous
Abstract
The photophysical and chiroptical properties of a novel, chiral helicene-NHC-Re(I) complex bearing an N-(aza[6]helicenyl)-benzimidazolylidene ligand are described, showing its ability to emit yellow circularly polarized luminescence. A comparative analysis of this new system with other helicene-Re(I) complexes reported to date illustrates the impact of structural modifications on the emissive and absorptive properties.
Topics & Concepts
HeliceneLuminescenceLigand (biochemistry)RheniumCircular dichroismChemistryLuminescent MeasurementsStereochemistryCrystallographyMaterials scienceOptoelectronicsMoleculeOrganic chemistryReceptorBiochemistrySynthesis and Properties of Aromatic CompoundsN-Heterocyclic Carbenes in Organic and Inorganic ChemistryOrganoboron and organosilicon chemistry