The reaction between the peroxide VO(η2-O2)(pyridine-2-carboxylate)·2H2O and FeII aq is not a Fenton-like reaction

Ariela Burg; Ella Fastovesky; Dror Shamir; Haya Kornweitz; Dan Meyerstein

doi:https://doi.org/10.1080/00958972.2016.1178729

The reaction between the peroxide VO(η²-O₂)(pyridine-2-carboxylate)·2H₂O and Fe^II _aq is not a Fenton-like reaction

Ariela Burg, Ella Fastovesky, Dror Shamir, Haya Kornweitz, Dan Meyerstein

Ben-Gurion University of the Negev, Ariel University

Research output: Contribution to journal › Article › peer-review

Abstract

The reduction of VO(η²-O₂)(pyridine-2-carboxylate) by Fe(H₂O)₆ ²⁺ proceeds via formation of the transient complex (pyridine-2-carboxylate)(O)V^V(μ-η²: η²-O₂)Fe^II(H₂O)₃ ²⁺ that is transformed via intramolecular electron transfer into (pyridine-2-carboxylate)(O)V^IV(μ-η²: η²-O₂)Fe^III(H₂O)₃ ²⁺. The latter transient reacts with another Fe(H₂O)₆ ²⁺ to yield 2Fe(H₂O)₆ ³⁺ + V^VO(OH)(pyridine-2-carboxylate)⁺. These results point out that: (1) V^V does not activate the η² bound peroxide toward the Fenton-like reaction. In this aspect, V^V differs from Fe^III in (H₂O)₅Fe–OOH²⁺ and (2) transients of the type L_mMⁿ(μ-η²: η²-O₂)M′L″_l have to be considered in the reductions of complexes of η²-bound peroxides.

Original language	English
Pages (from-to)	1722-1729
Number of pages	8
Journal	Journal of Coordination Chemistry
Volume	69
Issue number	11-13
DOIs	https://doi.org/10.1080/00958972.2016.1178729
State	Published - 2 Jul 2016

Keywords

DFT
Fenton reaction
Kinetics and mechanism
Vanadium
μ-η: η-O binuclear complexes

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Materials Chemistry

Access to Document

https://doi.org/10.1080/00958972.2016.1178729

Cite this

@article{c63b41fc7efc4f3d9bb73f3d6b76b8c8,

title = "The reaction between the peroxide VO(η2-O2)(pyridine-2-carboxylate)·2H2O and FeII aq is not a Fenton-like reaction",

abstract = "The reduction of VO(η2-O2)(pyridine-2-carboxylate) by Fe(H2O)6 2+ proceeds via formation of the transient complex (pyridine-2-carboxylate)(O)VV(μ-η2: η2-O2)FeII(H2O)3 2+ that is transformed via intramolecular electron transfer into (pyridine-2-carboxylate)(O)VIV(μ-η2: η2-O2)FeIII(H2O)3 2+. The latter transient reacts with another Fe(H2O)6 2+ to yield 2Fe(H2O)6 3+ + VVO(OH)(pyridine-2-carboxylate)+. These results point out that: (1) VV does not activate the η2 bound peroxide toward the Fenton-like reaction. In this aspect, VV differs from FeIII in (H2O)5Fe–OOH2+ and (2) transients of the type LmMn(μ-η2: η2-O2)M′L″l have to be considered in the reductions of complexes of η2-bound peroxides.",

keywords = "DFT, Fenton reaction, Kinetics and mechanism, Vanadium, μ-η: η-O binuclear complexes",

author = "Ariela Burg and Ella Fastovesky and Dror Shamir and Haya Kornweitz and Dan Meyerstein",

note = "Publisher Copyright: {\textcopyright} 2016 Informa UK Limited, trading as Taylor & Francis Group.",

year = "2016",

month = jul,

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doi = "https://doi.org/10.1080/00958972.2016.1178729",

language = "الإنجليزيّة",

volume = "69",

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TY - JOUR

T1 - The reaction between the peroxide VO(η2-O2)(pyridine-2-carboxylate)·2H2O and FeII aq is not a Fenton-like reaction

AU - Burg, Ariela

AU - Fastovesky, Ella

AU - Shamir, Dror

AU - Kornweitz, Haya

AU - Meyerstein, Dan

PY - 2016/7/2

Y1 - 2016/7/2

N2 - The reduction of VO(η2-O2)(pyridine-2-carboxylate) by Fe(H2O)6 2+ proceeds via formation of the transient complex (pyridine-2-carboxylate)(O)VV(μ-η2: η2-O2)FeII(H2O)3 2+ that is transformed via intramolecular electron transfer into (pyridine-2-carboxylate)(O)VIV(μ-η2: η2-O2)FeIII(H2O)3 2+. The latter transient reacts with another Fe(H2O)6 2+ to yield 2Fe(H2O)6 3+ + VVO(OH)(pyridine-2-carboxylate)+. These results point out that: (1) VV does not activate the η2 bound peroxide toward the Fenton-like reaction. In this aspect, VV differs from FeIII in (H2O)5Fe–OOH2+ and (2) transients of the type LmMn(μ-η2: η2-O2)M′L″l have to be considered in the reductions of complexes of η2-bound peroxides.

AB - The reduction of VO(η2-O2)(pyridine-2-carboxylate) by Fe(H2O)6 2+ proceeds via formation of the transient complex (pyridine-2-carboxylate)(O)VV(μ-η2: η2-O2)FeII(H2O)3 2+ that is transformed via intramolecular electron transfer into (pyridine-2-carboxylate)(O)VIV(μ-η2: η2-O2)FeIII(H2O)3 2+. The latter transient reacts with another Fe(H2O)6 2+ to yield 2Fe(H2O)6 3+ + VVO(OH)(pyridine-2-carboxylate)+. These results point out that: (1) VV does not activate the η2 bound peroxide toward the Fenton-like reaction. In this aspect, VV differs from FeIII in (H2O)5Fe–OOH2+ and (2) transients of the type LmMn(μ-η2: η2-O2)M′L″l have to be considered in the reductions of complexes of η2-bound peroxides.

KW - DFT

KW - Fenton reaction

KW - Kinetics and mechanism

KW - Vanadium

KW - μ-η: η-O binuclear complexes

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M3 - مقالة

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EP - 1729

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

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