Characterization and Subsequent Reactivity of an Fe-Peroxo Porphyrin Generated by Electrochemical Reductive Activation of O2

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• 作者：Raquel Oliveira ; Wiem Zouari ; Christian Herrero ; Frédéric Banse ; Bernd Schöllhorn ; Claire Fave ; Elodie Anxolabéhère-Mallart
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：December 5, 2016
• 年：2016
• 卷：55
• 期：23
• 页码：12204-12210
• 全文大小：408K
• ISSN：1520-510X

文摘

Reductive activation of O₂ is achieved by using the [Fe^III(F₂₀TPP)Cl] (F₂₀TPP = 5,10,15,20-tetrakis(pentafluorophenyl) porphyrinate) porphyrin through electrochemical reduction of the [Fe^III(F₂₀TPP)(O₂^•–)] superoxo complex. Formation of the [Fe^III(F₂₀TPP)(OO)]⁻ peroxo species is monitored by using low-temperature electronic absorption spectroscopy, electron paramagnetic resonance, and cyclic voltammetry. Its subsequent protonation to yield the [Fe^III(F₂₀TPP)(OOH)] hydroperoxo intermediate is probed using low-temperature electronic absorption spectroscopy and electron paramagnetic resonance.