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Ce^IV - and HClO₄ -Promoted Assembly of an Fe₂ ^IV (μ-O)₂ Diamond Core from its Monomeric Fe^IV =O Precursor at Room Temperature.

ABSTRACT: Diiron(IV)-oxo species are proposed to effect the cleavage of strong C-H bonds by nonheme diiron enzymes such as soluble methane monooxygenase (sMMO) and fatty acid desaturases. However, synthetic mimics of such diiron(IV) oxidants are rare. Herein we report the reaction of (TPA*)Fe^II (1) (TPA*=tris(3,5-dimethyl-4-methoxypyridyl-2-methyl)amine) in CH₃ CN with 4 equiv CAN and 200 equiv HClO₄ at 20 °C to form a complex with an [Fe^IV ₂ (μ-O)₂ ]⁴⁺ core. CAN and HClO₄ play essential roles in this unprecedented transformation, in which the comproportionation of Fe^III -O-Ce^IV and Fe^IV =O/Ce⁴⁺ species is proposed to be involved in the assembly of the [Fe^IV ₂ (μ-O)₂ ]⁴⁺ core.

SUBMITTER: Draksharapu A

PROVIDER: S-EPMC7708462 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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CeIV - and HClO4 -Promoted Assembly of an Fe2IV (μ-O)2 Diamond Core from its Monomeric FeIV =O Precursor at Room Temperature.

Draksharapu Apparao A Xu Shuangning S Que Lawrence L

Angewandte Chemie (International ed. in English) 20201006 50

Diiron(IV)-oxo species are proposed to effect the cleavage of strong C-H bonds by nonheme diiron enzymes such as soluble methane monooxygenase (sMMO) and fatty acid desaturases. However, synthetic mimics of such diiron(IV) oxidants are rare. Herein we report the reaction of (TPA*)FeII (1) (TPA*=tris(3,5-dimethyl-4-methoxypyridyl-2-methyl)amine) in CH3 CN with 4 equiv CAN and 200 equiv HClO4 at 20 °C to form a complex with an [FeIV2 (μ-O)<sub ...[more]

PMID: 32902902

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