Electrochemical generation of a nonheme oxoiron(IV) complex

Michael J. Collins; Kallol Ray; Lawrence Que

doi:10.1021/ic061263i

Electrochemical generation of a nonheme oxoiron(IV) complex

Michael J. Collins, Kallol Ray, Lawrence Que

Chemistry (Twin Cities)

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Abstract

The complex [Fe^IVO(N4Py)]²⁺ (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) has been prepared by bulk electrolysis in aqueous CH₃CN and CH₂Cl₂, and its redox properties characterized. Bulk chronocoulometry and spectropotentiometry experiments in CH₃CN show that [Fe ^II(N4Py)(NCCH₃)]²⁺ can be oxidized quantitatively to its iron(III) derivative at an applied potential of +0.71 V vs ferrocene and then to the oxoiron(IV) complex (in the presence of added water) at potentials above +1.3 V. The E_1/2 value for the Fe ^IV/III couple has been estimated to be +0.90 V from spectropotentiometric titrations in CH₃CN and cyclic voltammetric measurements in CH₂Cl₂.

Original language	English (US)
Pages (from-to)	8009-8011
Number of pages	3
Journal	Inorganic chemistry
Volume	45
Issue number	20
DOIs	https://doi.org/10.1021/ic061263i
State	Published - Oct 2 2006

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title = "Electrochemical generation of a nonheme oxoiron(IV) complex",

abstract = "The complex [FeIVO(N4Py)]2+ (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) has been prepared by bulk electrolysis in aqueous CH3CN and CH2Cl2, and its redox properties characterized. Bulk chronocoulometry and spectropotentiometry experiments in CH3CN show that [Fe II(N4Py)(NCCH3)]2+ can be oxidized quantitatively to its iron(III) derivative at an applied potential of +0.71 V vs ferrocene and then to the oxoiron(IV) complex (in the presence of added water) at potentials above +1.3 V. The E1/2 value for the Fe IV/III couple has been estimated to be +0.90 V from spectropotentiometric titrations in CH3CN and cyclic voltammetric measurements in CH2Cl2.",

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T1 - Electrochemical generation of a nonheme oxoiron(IV) complex

AU - Collins, Michael J.

AU - Ray, Kallol

AU - Que, Lawrence

PY - 2006/10/2

Y1 - 2006/10/2

N2 - The complex [FeIVO(N4Py)]2+ (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) has been prepared by bulk electrolysis in aqueous CH3CN and CH2Cl2, and its redox properties characterized. Bulk chronocoulometry and spectropotentiometry experiments in CH3CN show that [Fe II(N4Py)(NCCH3)]2+ can be oxidized quantitatively to its iron(III) derivative at an applied potential of +0.71 V vs ferrocene and then to the oxoiron(IV) complex (in the presence of added water) at potentials above +1.3 V. The E1/2 value for the Fe IV/III couple has been estimated to be +0.90 V from spectropotentiometric titrations in CH3CN and cyclic voltammetric measurements in CH2Cl2.

AB - The complex [FeIVO(N4Py)]2+ (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) has been prepared by bulk electrolysis in aqueous CH3CN and CH2Cl2, and its redox properties characterized. Bulk chronocoulometry and spectropotentiometry experiments in CH3CN show that [Fe II(N4Py)(NCCH3)]2+ can be oxidized quantitatively to its iron(III) derivative at an applied potential of +0.71 V vs ferrocene and then to the oxoiron(IV) complex (in the presence of added water) at potentials above +1.3 V. The E1/2 value for the Fe IV/III couple has been estimated to be +0.90 V from spectropotentiometric titrations in CH3CN and cyclic voltammetric measurements in CH2Cl2.

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Electrochemical generation of a nonheme oxoiron(IV) complex

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