Dioxygen-Derived Nonheme Mononuclear Fe^III(OH) Complex and Its Reactivity with Carbon Radicals.

ABSTRACT: A new tetradentate, monoanionic, mixed N/O donor ligand (BNPA^Ph2O^-) with second coordination sphere H-bonding groups has been synthesized for stabilization of a terminal Fe^III(OH) complex. The complex Fe^II(BNPA^Ph2O)(OTf) (1) reacts with O₂ to give a mononuclear terminal Fe^III(OH) complex, Fe^III(OH)(BNPA^Ph2O)(OTf) (2), both of which were characterized by X-ray diffraction, electrospray ionization mass spectrometry, UV-vis, ¹H and ¹⁹F nuclear magnetic resonance, ⁵⁷Fe Mössbauer, and electron paramagnetic resonance spectroscopies. Treatment of 2 with carbon radicals (Ar₃C·) gives Ar₃COH and the Fe^II complex 1, in direct analogy with the elusive radical "rebound" process proposed for nonheme iron enzymes.

SUBMITTER: Yadav V 

PROVIDER: S-EPMC8006860 | biostudies-literature |

REPOSITORIES: biostudies-literature