Synthesis, Characterization and Dynamic Behavior of (π-Allyl)palladium Complexes with Polydentate Nitrogen Ligands, Evidence of a Dissociative Mechanism
✍ Scribed by Elguero, José ;Fruchier, Alain ;De La Hoz, Antonio ;Jalón, Félix A. ;Manzano, Blanca R. ;Otero, Antonio ;Gómez-De La Torre, Felipe
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1996
- Tongue
- English
- Weight
- 546 KB
- Volume
- 129
- Category
- Article
- ISSN
- 0009-2940
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✦ Synopsis
Fluxionality / Heterocyclic ligands / Palladium complexes New examples of the fluxional behavior of (q3-ally1)palladium complexes are described. Variable-temperature experiments and line-shape analysis of two (q3-allyl)palladium complexes containing 2-( 1H-pyrazol-1-y1)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.