Tridentate NNN Ligand Associating Amidoquinoline and Iminophosphorane: Synthesis and Coordination to Pd and Ni Centers
Résumé
The synthesis of a tridentate NNN ligand incorporating an amidoquinoline and an iminophosphorane (L R H, R =Ph, Cy) was carried out. Coordination to Pd II and Ni II precursors gave as expected square planar complexes of general formula [L R MCl]. The most surprising result came from the reaction of L Ph H with [Ni(COD)2] which gave a Ni II-phenyl complex bearing a tridentate amidoquinoline-aminophosphine ligand. This rearrangement would result from a proton transfer assisted by the Ni 0 when stabilized by a phenyl substituent at the phosphorus, as suggested by DFT calculations and complementary experiments. This nickel-phenyl complex formed the corresponding benzoyl complex under a CO atmosphere.
Domaines
AutreOrigine | Fichiers produits par l'(les) auteur(s) |
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