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Ligand Identity-Induced Generation of Enhanced Oxidative Hydrogen Atom Transfer Reactivity for a Cu^II₂(O₂^•-) Complex Driven by Formation of a Cu^II₂(^-OOH) Compound with a Strong O-H Bond.

ABSTRACT: A superoxide-bridged dicopper(II) complex, [Cu^II₂(XYLO)(O₂^•-)]²⁺ (1) (XYLO = binucleating m-xylyl derivative with a bridging phenolate ligand donor and two bis(2-{2-pyridyl}ethyl)amine arms), was generated from chemical oxidation of the peroxide-bridged dicopper(II) complex [Cu^II₂(XYLO)(O₂^2-)]⁺ (2), using ferrocenium (Fc⁺) derivatives, in 2-methyltetrahydrofuran (MeTHF) at -125 °C. Using Me₁₀Fc⁺, a 1 ⇆ 2 equilibrium was established, allowing for calculation of the reduction potential of 1 as -0.525 ± 0.01 V vs Fc^+/0. Addition of 1 equiv of strong acid to 2 afforded the hydroperoxide-bridged

SUBMITTER: Quist DA

PROVIDER: S-EPMC6752211 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Ligand Identity-Induced Generation of Enhanced Oxidative Hydrogen Atom Transfer Reactivity for a Cu^II₂(O₂^•-) Complex Driven by Formation of a Cu^II₂(^-OOH) Compound with a Strong O-H Bond.

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Ligand Identity-Induced Generation of Enhanced Oxidative Hydrogen Atom Transfer Reactivity for a CuII2(O2•-) Complex Driven by Formation of a CuII2(-OOH) Compound with a Strong O-H Bond.

OmicsDI is part of the ELIXIR infrastructure

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Ligand Identity-Induced Generation of Enhanced Oxidative Hydrogen Atom Transfer Reactivity for a Cu^II₂(O₂^•-) Complex Driven by Formation of a Cu^II₂(^-OOH) Compound with a Strong O-H Bond.