Dinuclear Rhodium(I)–N-Heterocyclic Carbene Complexes as Alkyne Hydropyridonation Catalysts
European Journal of Inorganic Chemistry, vol.29, no.7, 2026 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 29 Issue: 7
- Publication Date: 2026
- Doi Number: 10.1002/ejic.202500598
- Journal Name: European Journal of Inorganic Chemistry
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, MEDLINE
- Keywords: halogen bond, hydroamidation, hydropyridonation, N-heterocyclic carbene, shim chemistry
- Inonu University Affiliated: No
Abstract
A series of new RhI–N-Heterocyclic carbene dinuclear complexes of type [Rh(µ-Cl)(η2-coe)(NHC)]2, containing IPrBIAN, IPrCl, and IPr* ligands, has been prepared. The crystal structure of the IPrCl functionalized rhodium–dinuclear complex reveals an intermolecular Cl···Cl halogen bond. The chlorido-bridges can be cleaved by pyridine to afford the corresponding mononuclear derivatives RhCl(η2-coe)(NHC)(py). These complexes are efficient alkyne hydropyridonation catalysts, with the IMes complex exhibiting the highest reactivity within the series.