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Dioxygen activation at room temperature during controllable and highly efficient acetaldehyde-to-acetic acid oxidation using a simple iron(III)–acetonitrile complex

Paper ID Volume ID Publish Year Pages File Format Full-Text
54323 47005 2014 7 PDF Available
Title
Dioxygen activation at room temperature during controllable and highly efficient acetaldehyde-to-acetic acid oxidation using a simple iron(III)–acetonitrile complex
Abstract

•Highly efficient acetaldehyde-to-acetic acid oxidation.•Room temperature dioxygen activation.•Mononuclear non-heme iron–oxygen complex.•Michaelis–Menten kinetics.

We show that highly efficient acetaldehyde-to-acetic acid oxidation is achieved in a diluted FeCl3–acetonitrile solution (5–100 μM), which proceeds rather rapidly and follows the enzymatic-like Michaelis–Menten kinetics. Interestingly, by adjusting the concentration of FeCl3, we are able to accelerate or shut down the oxidation process conveniently. Based on the catalytic results, spectroscopic evidences and successive DFT calculations, a reactant-initiated, putative mononuclear non-heme iron–oxygen complex, [FeCl(MeCN)4(O)]2+, is proposed as the active oxidizing species to conduct the room temperature reaction with relatively high TOF values (∼1.2 s−1). Finally, the putative iron–oxygen complexes are employed to the selective oxidation of benzyl alcohol under ambient conditions.

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Keywords
Dioxygen activation; Iron–oxygen complex; Acetaldehyde oxidation; Michaelis–Menten kinetics
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Dioxygen activation at room temperature during controllable and highly efficient acetaldehyde-to-acetic acid oxidation using a simple iron(III)–acetonitrile complex
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 233, 15 September 2014, Pages 140–146
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us