Chemistry of Pd II complexes containing both BINAP (2′2′-bis(diphenylphosphino)binaphthyl) and a η 3-pinene or -allyl ligand. NMR studies on [Pd(η 3-C 10H 15){ S(−)BINAP}] (CF 3SO 3). The crystal structure of [Pd(η 3-C 10H 15)(4,4′-dimethylbipyridine)](CF 3SO 3)

Abstract

One and two-dimensional 1H, 13C and 31P NMR studies on palladium(II) complexes containing η 3-C 10H 15 or η 3-C 4H 7 allyl and S(−)BINAP ligands are reported. Details of the three-dimensional solution structure for [Pd(η 3C 10H 15) { S(−)BINAP}(CF 3SO 3) based on 1H-2D NOESY and molecular modelling calculations are presented. The structure for the model β-pinene allyl complex [Pd(η 3-C 10H 15)(4,4′-dimethylbipyridine)]CF 3SO 3) has been determined by an X-ray diffraction study, which reveals that the CH 2 terminal allyl carbon is significantly displaced from the N-Pd-N plane.