Helically Chiral NHC-Gold(I) Complexes: Synthesis, Chiroptical Properties and Electronic Features of the [5]Helicene-Imidazolylidene Ligand - Aix-Marseille Université Accéder directement au contenu
Article Dans Une Revue European Journal of Organic Chemistry Année : 2021

Helically Chiral NHC-Gold(I) Complexes: Synthesis, Chiroptical Properties and Electronic Features of the [5]Helicene-Imidazolylidene Ligand

Résumé

We describe the preparation of helically chiral gold(I) complexes bearing a [5]helicenic-N-heterocyclic carbene ligand. They were successfully obtained as enantiopure compounds by semi-preparative chiral HPLC and their structural, chiroptical, and photophysical properties were subsequently investigated. Notably, strong electronic circular dichroism, dual emission from singlet and triplet states, with the timescale of the latter up to the millisecond range at room temperature, and moderate circularly phosphorescence were observed. The sigma-donating and pi-accepting properties of the constituent helical ortho-fused pi-conjugated carbene were investigated by classical quantitative analysis of the IR stretching frequencies and NMR characteristics of the corresponding Ir(CO)(2)Cl complex and selenourea.
Fichier principal
Vignette du fichier
Gauthier et al-2021-Helically chiral NHC-gold(I) complexes.pdf (1.25 Mo) Télécharger le fichier
Gauthier_ejoc202100722-sup-0001-misc_information.pdf (2.03 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03367739 , version 1 (15-10-2021)

Identifiants

Citer

Etienne S. Gauthier, Marie Cordier, Vincent Dorcet, Nicolas Vanthuyne, Ludovic Favereau, et al.. Helically Chiral NHC-Gold(I) Complexes: Synthesis, Chiroptical Properties and Electronic Features of the [5]Helicene-Imidazolylidene Ligand. European Journal of Organic Chemistry, 2021, 2021 (34), pp.4769-4776. ⟨10.1002/ejoc.202100722⟩. ⟨hal-03367739⟩
56 Consultations
63 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More