New mechanistic aspects of the fenton reaction

Sandra Rachmilovich-Calis; Alexandra Masarwa; Naomi Meyerstein; Dan Meyerstein; Rudi Van Eldik

doi:10.1002/chem.200802572

New mechanistic aspects of the fenton reaction

Sandra Rachmilovich-Calis, Alexandra Masarwa, Naomi Meyerstein, Dan Meyerstein, Rudi Van Eldik

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91 Scopus citations

Abstract

The kinetics of the Fenton reaction was studied in detail. A second reaction step in the presence of excess H₂O₂ is attributed to formation of the complex Fe^III(^-O₂H) _aq. Therefore, the reaction of Fe(H₂O)₆ ²⁺ with Fe^III(^-O₂H)_aq in the presence of Fe^II to form Fe^III_aq (K = (7.7 ± 1.5) × 10⁵M^-1 s^-1 may contribute to the overall Fenton reaction, and could account for some of the debate in the literature concerning its detailed mechanism. If this is correct for LFe ^III(^-O₂H)_aq also, then it might be of significant biological importance. The activation parameters δH ^d̊, ΔS^d̊, and ΔV^d̊ for the Fenton reaction were measured under various experimental conditions, and are used in the mechanistic interpretation.

Original language	English
Pages (from-to)	8303-8309
Number of pages	7
Journal	Chemistry - A European Journal
Volume	15
Issue number	33
DOIs	https://doi.org/10.1002/chem.200802572
State	Published - 17 Aug 2009

Keywords

Activation parameters
Fenton reaction
Kinetics
Mechanism
Oxidation

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/chem.200802572

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title = "New mechanistic aspects of the fenton reaction",

abstract = "The kinetics of the Fenton reaction was studied in detail. A second reaction step in the presence of excess H2O2 is attributed to formation of the complex FeIII(-O2H) aq. Therefore, the reaction of Fe(H2O)6 2+ with FeIII(-O2H)aq in the presence of FeII to form FeIIIaq (K = (7.7 ± 1.5) × 105M-1 s-1 may contribute to the overall Fenton reaction, and could account for some of the debate in the literature concerning its detailed mechanism. If this is correct for LFe III(-O2H)aq also, then it might be of significant biological importance. The activation parameters δH d̊, ΔSd̊, and ΔVd̊ for the Fenton reaction were measured under various experimental conditions, and are used in the mechanistic interpretation.",

keywords = "Activation parameters, Fenton reaction, Kinetics, Mechanism, Oxidation",

author = "Sandra Rachmilovich-Calis and Alexandra Masarwa and Naomi Meyerstein and Dan Meyerstein and {Van Eldik}, Rudi",

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T1 - New mechanistic aspects of the fenton reaction

AU - Rachmilovich-Calis, Sandra

AU - Masarwa, Alexandra

AU - Meyerstein, Naomi

AU - Meyerstein, Dan

AU - Van Eldik, Rudi

PY - 2009/8/17

Y1 - 2009/8/17

N2 - The kinetics of the Fenton reaction was studied in detail. A second reaction step in the presence of excess H2O2 is attributed to formation of the complex FeIII(-O2H) aq. Therefore, the reaction of Fe(H2O)6 2+ with FeIII(-O2H)aq in the presence of FeII to form FeIIIaq (K = (7.7 ± 1.5) × 105M-1 s-1 may contribute to the overall Fenton reaction, and could account for some of the debate in the literature concerning its detailed mechanism. If this is correct for LFe III(-O2H)aq also, then it might be of significant biological importance. The activation parameters δH d̊, ΔSd̊, and ΔVd̊ for the Fenton reaction were measured under various experimental conditions, and are used in the mechanistic interpretation.

AB - The kinetics of the Fenton reaction was studied in detail. A second reaction step in the presence of excess H2O2 is attributed to formation of the complex FeIII(-O2H) aq. Therefore, the reaction of Fe(H2O)6 2+ with FeIII(-O2H)aq in the presence of FeII to form FeIIIaq (K = (7.7 ± 1.5) × 105M-1 s-1 may contribute to the overall Fenton reaction, and could account for some of the debate in the literature concerning its detailed mechanism. If this is correct for LFe III(-O2H)aq also, then it might be of significant biological importance. The activation parameters δH d̊, ΔSd̊, and ΔVd̊ for the Fenton reaction were measured under various experimental conditions, and are used in the mechanistic interpretation.

KW - Activation parameters

KW - Fenton reaction

KW - Kinetics

KW - Mechanism

KW - Oxidation

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U2 - 10.1002/chem.200802572

DO - 10.1002/chem.200802572

M3 - Article

AN - SCOPUS:68949115938

SN - 0947-6539

VL - 15

SP - 8303

EP - 8309

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 33

ER -

New mechanistic aspects of the fenton reaction

Abstract

Keywords

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