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Abstract Three 2-iminofuran ligands 2-(N-2,6-diisopropylphenylformimino)furan (L1), 2-(N-2,6-dimethylphenylformimino)furan (L2) and 2-(N-4-methoxyphenylformimino)furan (L3) were obtained by condensation reactions of the respective anilines with furfural. The η3-allyl Ni(II) cationic complexes 1–3 have been… Click to show full abstract
Abstract Three 2-iminofuran ligands 2-(N-2,6-diisopropylphenylformimino)furan (L1), 2-(N-2,6-dimethylphenylformimino)furan (L2) and 2-(N-4-methoxyphenylformimino)furan (L3) were obtained by condensation reactions of the respective anilines with furfural. The η3-allyl Ni(II) cationic complexes 1–3 have been synthesised by reacting [Ni(η3-C3H5)(μ-Br)]2 with the corresponding ligands L1-L3, in the presence of TlPF6. All complexes have been characterised by FT-IR, NMR spectroscopy and elemental analysis. The molecular structure of complex 2 has been determined by single crystal X-Ray diffraction. Complexes 1 and 2 have displayed a mono bidentate chelation mode of the respective ligand, while complex 3 showed a bis monodentate coordination framework. The respective complexes were studied by DFT calculations, showing a tendency to form the bis monodentate species, the formation of complex 3 being clearly the most favoured one.
Journal Title: Journal of Molecular Structure
Year Published: 2019
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