Preparation and Reactivity of Anionic Iron Sandwich Complex Bearing π-Phenol Ligand Acting as Proton-Coupled Electron Transfer Reagent.

ABSTRACT: A neutral Fe(II) sandwich complex bearing a π-phenol ligand with a trifluoroborate substituent [Cp*Fe(η⁶-2-^tBu-6-BF₃-C₆H₃OH)] is designed and prepared, which affords the corresponding anionic Fe(I) sandwich complex [Cp*Fe(η⁶-2-^tBu-6-BF₃-C₆H₃OH)]^- with an effective O-H bond dissociation free energy at 40.7 kcal/mol in tetrahydrofuran on treatment with KC₈. The anionic complex acts as a proton-coupled electron transfer reagent for the reduction of organic substrates such as acetophenone and anthracene, whereas the reaction with a Mo(IV) nitride complex leads to the stoichiometric formation of ammonia.

SUBMITTER: Tanabe Y 

PROVIDER: S-EPMC12802546 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature