Nickel-Alkyl Complexes with a Reactive PNC-Pincer Ligand.

ABSTRACT: Based on previous work related to the design and application of rigid tridentate phosphine-pyridine-phenyl coordination offered by a PNC-pincer ligand upon cyclometalation to nickel, the synthesis, spectroscopic and solid state characterization and redox-reactivity of two Ni^II(PNC) complexes featuring either a methyl (2CH₃ ) or CF₃ co-ligand (2CF₃ ) are described. One-electron oxidation is proposed to furnish C-C reductive elimination, as deduced from a combined chemical, electrochemical, spectroscopic and computational study. One-electron reduction results in a ligand-centered radical anion, as supported by electrochemistry, UV spectroelectrochemistry, EPR spectroscopy, and DFT calculations. This further attenuates the breadth of c

SUBMITTER: Jongbloed LS 

PROVIDER: S-EPMC6001697 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature