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.
Dinuclear Rhodium(I)–N-Heterocyclic Carbene Complexes as Alkyne Hydropyridonation Catalysts
Di Giuseppe, Andrea;
2026-01-01
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.File in questo prodotto:
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