RT info:eu-repo/semantics/article T1 Benzylic Complexes of Palladium(II): Bonding modes and Penta- coordination for Steric Relief A1 Martín Ruiz, Blanca A1 Pérez Ortega, Ignacio A1 Albéniz Jiménez, Ana Carmen K1 Chemistry K1 Organometallic Chemistry K1 Palladium K1 Benzyl complexes AB A large variety of α-(pentafluorophenylmethyl)benzylic palladium complexes with different ligands have been synthesized and char- acterized. Multinuclear NMR spectroscopic data allow to determine the σ-or η3-benzylic nature of the complexes in solution. The adoption of either coordination mode is a function of the number of ligands coordinated to palladium and, remarkably, the presence of bulky phosphines favors the adoption of a bidentate η3-benzylic mode and palladium pentacoordinated complexes. Experimental data and DFT calculations indicate that this five- coordination could alleviate the steric hindrance of two cis bulky phosphines. The benzylic complexes show a rich fluxional behavior that involves both ligand exchange and σ- to η3-benzylic interconversion. PB American Chemical Society YR 2018 FD 2018 LK http://uvadoc.uva.es/handle/10324/31462 UL http://uvadoc.uva.es/handle/10324/31462 LA eng NO Organometallics, 2018, Vol. 37, p. 1074-1085 DS UVaDOC RD 22-dic-2024