Bifunctional N-heterocyclic carbene ferrocenyl ligands - synthesis and palladium(II) complexes

Pauline Loxq (1) , Jean-Claude Daran (1) , E. Manoury (1) , Rinaldo Poli (1, 2) , A. Labande (1)

1 LCC - Laboratoire de chimie de coordination
2 IUF - Institut universitaire de France

Two ferrocenylimidazolium tetrafluoroborate salts [R = Me, 7 and R = (2,4,6-trimethylphenyl), 8], precursors of new ferrocenylimidazol-2-ylidene bifunctional ligands, have been prepared for the first time. The free 1-(2-dimethylaminomethyl)ferrocenyl-3-methylimidazol-2-ylidene (12) was isolated and characterised by H-1 and C-13 NMR spectroscopy and represents the second example of an isolated and characterised imidazol-2-ylidene directly linked to ferrocene. Neutral (compound 13) and cationic (compound 14) palladium(II) complexes were obtained in moderate yields and characterised by H-1 and C-13 NMR spectroscopy and mass spectrometry.

Mots clés: Carbene ligands; Ferrocenes; N ligands; Palladium

Domaines: Chimie de coordination

Pauline Loxq, Jean-Claude Daran, E. Manoury, Rinaldo Poli, A. Labande. Bifunctional N-heterocyclic carbene ferrocenyl ligands - synthesis and palladium(II) complexes. European Journal of Inorganic Chemistry, 2015, 4, pp.609-616. ⟨10.1002/ejic.201403001⟩. ⟨hal-01919613⟩