Synthesis and characterisation of kappa(1)-P and kappa(2)-P,N palladium(II) complexes of the open cage water soluble aminophosphine PTN

摘要

New palladium(II) complexes containing the water soluble aminophosphine PTN ligand (PTN = 7-phospha3,7-dimethyl-1,3,5-triazabicyclo[3.3.1] nonane) in 1:1 and 1:2 ratio Pd/PTN ligand, respectively, were prepared and fully characterised by mono and bidimensional P-31, H-1 and C-13 NMR techniques showing that PTN can adopt both kappa(1)-P and kappa(2)-P,N coordination modes. The complexes with Pd/PTN ratio 1:2 are highly soluble in water at room temperature. Suitable crystals for X-ray structure determination were obtained for the neutral complex kappa(2)-P, N-Pd(PTN)(OAc)(2) (1) and for the monocationic complex [Pd(kappa P2-,N-PTN)(kappa(1)-P-PTN)Cl][PF6] (5). (c) 2008 Elsevier B.V. All rights reserved.