Synthesis, characterization and dynamic behavior of (π-allyl)palladium complexes with polydentate nitrogen ligands, evidence of a dissociative mechanism

Article abstract of DOI:10.1002/cber.19961290519

New examples of the fluxional behavior of (η³-allyl)palladium complexes are described. Variable-temperature experiments and line-shape analysis of two (η³-allyl)palladium complexes containing 2-(1H-pyrazol-1-yl)azine ligands were performed in order to determine the activation free energies, enthalpies and entropies of the process. A dissociative mechanism pointing to a selective Pd-N cleavage is proposed on the basis of these results and NOE experiments above and below the coalescence temperature. VCH Verlagsgesellschaft mbH, 1996.