Highly selective synthesis of surface Fe^IV=O with nanoscale zero-valent iron and chlorite for efficient oxygen transfer reactions.

ABSTRACT: High-valent iron-oxo species (Fe^IV=O) has been a long-sought-after oxygen transfer reagent in biological and catalytic chemistry but suffers from a giant challenge in its gentle and selective synthesis. Herein, we propose a new strategy to synthesize surface Fe^IV=O (≡Fe^IV=O) on nanoscale zero-valent iron (nZVI) using chlorite (ClO₂^-) as the oxidant, which possesses an impressive ≡Fe^IV=O selectivity of 99%. ≡Fe^IV=O can be energetically formed from the ferrous (Fe^II) sites on nZVI through heterolytic Cl-O bond dissociation of ClO₂^- via a synergistic effect between electron-donating surface ≡Fe^II and proximal electron-withdrawing H₂O, where H₂O serves

SUBMITTER: Li M 

PROVIDER: S-EPMC10515137 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature