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Hydrocarbon Oxidation by an Exposed, Multiply Bonded Iron(III) Oxo Complex.

ABSTRACT: The iron oxo unit, [Fe=O] ⁿ⁺ is a critical intermediate in biological oxidation reactions. While its higher oxidation states are well studied, relatively little is known about the least-oxidized form [Fe^III=O]⁺. Here, the thermally stable complex PhB(AdIm)₃Fe=O has been structurally, spectroscopically, and computationally characterized as a bona fide iron(III) oxo. An unusually short Fe-O bond length is consistent with iron-oxygen multiple bond character and is supported by electronic structure calculations. The complex is thermally stable yet is able to perform hydrocarbon oxidations, facilitating both C-O bond formation and dehydrogenation reactions.

SUBMITTER: Valdez-Moreira JA

PROVIDER: S-EPMC8554833 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Hydrocarbon Oxidation by an Exposed, Multiply Bonded Iron(III) Oxo Complex.

Valdez-Moreira Juan A JA Beagan Daniel M DM Yang Hao H Telser Joshua J Hoffman Brian M BM Pink Maren M Carta Veronica V Smith Jeremy M JM

ACS central science 20210923 10

The iron oxo unit, [Fe=O] n+ is a critical intermediate in biological oxidation reactions. While its higher oxidation states are well studied, relatively little is known about the least-oxidized form [FeIII=O]+. Here, the thermally stable complex PhB(AdIm)3Fe=O has been structurally, spectroscopically, and computationally characterized as a bona fide iron(III) oxo. An unusually short Fe-O bond length is consistent with iron-oxygen multipl ...[more]

PMID: 34729418

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