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Synthesis and ligand exchange reactions of P2Pd(II) and P2Pt(II) salicylaldimates.

Dalton transactions (Cambridge, England : 2003) (2005-05-24)
William D Kerber, D Luke Nelsen, Peter S White, Michel R Gagné
ZUSAMMENFASSUNG

Reaction of (dppe)MCl(2)(dppe = 1,2-bis(diphenylphosphino)ethane) with 2-(N-phenyliminomethyl)phenol leads to air-stable (dppe)M(N,O) chelates (M = Pd, 1a; M = Pt, 1b). The N-4-methylphenyl derivative of 1a has been characterized by X-ray analysis. The N,O ligands are kinetically labile and exchange occurs in solution in the presence of other salicylaldimines. In the presence of anilines, a metal-mediated imine exchange process occurs. Hammett analysis reveals that the platinum complexes are sensitive to the electronics at N but not at O. Electron donating groups on the N-aryl ring stabilize the metal complex.

MATERIALIEN
Produktnummer
Marke
Produktbeschreibung

Sigma-Aldrich
Ethylen-bis(diphenylphosphin), 99%
Sigma-Aldrich
Ethylen-bis(diphenylphosphin), 97%