Synthesis, structure and magnetic properties of an oxo-bridged dinuclear iron(III) complex [(TPyA)FFeIIIOFeIIIF(TPyA)](BF4)2 · 0.5MeOH (TPyA = tris(2-pyridylmethyl)amine) containing the FFeIIIOFeIIIF linkage

Kil Sik Min; Atta M. Arif; Joel S. Miller

doi:10.1016/j.ica.2006.09.020

Synthesis, structure and magnetic properties of an oxo-bridged dinuclear iron(III) complex [(TPyA)FFe^IIIOFe^IIIF(TPyA)](BF₄)₂ · 0.5MeOH (TPyA = tris(2-pyridylmethyl)amine) containing the FFe^IIIOFe^IIIF linkage

Kil Sik Min, Atta M. Arif, Joel S. Miller

Department of Chemical Science Education

University of Utah

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

27 Scopus citations

Abstract

The reaction of [Fe^II(H₂O)₆](BF₄)₂ with tris(2-pyridylmethyl)amine (TPyA) and triethylamine in methanol under aerobic conditions forms [(TPyA)FFe^IIIOFe^IIIF(TPyA)](BF₄)₂ · 0.5MeOH (1), in which each Fe(III) ion is coordinated to a TPyA and an F^- ion as well as an oxo ion (O^2-) linking two Fe(III) ions. 1 has offset face-to-face π-π interactions between the dimers, and possesses a supramolecular network structure. The magnetic susceptibility of 1 can be fit with g = 2.0, J/k_B = - 153 K (106 cm^-1), and θ = - 0.3 K [H = - 2JS_a · S_b]. These indicate that very strong antiferromagnetic interactions occur via the oxo bridge within the Fe(III) dimer and weak antiferromagnetic interactions between the dimers.

Original language	English
Pages (from-to)	1854-1858
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	360
Issue number	6
DOIs	https://doi.org/10.1016/j.ica.2006.09.020
State	Published - 20 Apr 2007

Keywords

Antiferromagnetic interaction
Dinuclear iron(III) complex
Offset π-π interaction
Oxo-bridged complex
X-ray crystal structure

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@article{99c5ef20de0b4945a211f84c31032d06,

title = "Synthesis, structure and magnetic properties of an oxo-bridged dinuclear iron(III) complex [(TPyA)FFeIIIOFeIIIF(TPyA)](BF4)2 · 0.5MeOH (TPyA = tris(2-pyridylmethyl)amine) containing the FFeIIIOFeIIIF linkage",

abstract = "The reaction of [FeII(H2O)6](BF4)2 with tris(2-pyridylmethyl)amine (TPyA) and triethylamine in methanol under aerobic conditions forms [(TPyA)FFeIIIOFeIIIF(TPyA)](BF4)2 · 0.5MeOH (1), in which each Fe(III) ion is coordinated to a TPyA and an F- ion as well as an oxo ion (O2-) linking two Fe(III) ions. 1 has offset face-to-face π-π interactions between the dimers, and possesses a supramolecular network structure. The magnetic susceptibility of 1 can be fit with g = 2.0, J/kB = - 153 K (106 cm-1), and θ = - 0.3 K [H = - 2JSa · Sb]. These indicate that very strong antiferromagnetic interactions occur via the oxo bridge within the Fe(III) dimer and weak antiferromagnetic interactions between the dimers.",

keywords = "Antiferromagnetic interaction, Dinuclear iron(III) complex, Offset π-π interaction, Oxo-bridged complex, X-ray crystal structure",

author = "Min, {Kil Sik} and Arif, {Atta M.} and Miller, {Joel S.}",

year = "2007",

month = apr,

day = "20",

doi = "10.1016/j.ica.2006.09.020",

language = "English",

volume = "360",

pages = "1854--1858",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier B.V.",

number = "6",

}

Synthesis, structure and magnetic properties of an oxo-bridged dinuclear iron(III) complex [(TPyA)FFe^IIIOFe^IIIF(TPyA)](BF₄)₂ · 0.5MeOH (TPyA = tris(2-pyridylmethyl)amine) containing the FFe^IIIOFe^IIIF linkage. / Min, Kil Sik; Arif, Atta M.; Miller, Joel S.
In: Inorganica Chimica Acta, Vol. 360, No. 6, 20.04.2007, p. 1854-1858.

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

TY - JOUR

T1 - Synthesis, structure and magnetic properties of an oxo-bridged dinuclear iron(III) complex [(TPyA)FFeIIIOFeIIIF(TPyA)](BF4)2 · 0.5MeOH (TPyA = tris(2-pyridylmethyl)amine) containing the FFeIIIOFeIIIF linkage

AU - Min, Kil Sik

AU - Arif, Atta M.

AU - Miller, Joel S.

PY - 2007/4/20

Y1 - 2007/4/20

N2 - The reaction of [FeII(H2O)6](BF4)2 with tris(2-pyridylmethyl)amine (TPyA) and triethylamine in methanol under aerobic conditions forms [(TPyA)FFeIIIOFeIIIF(TPyA)](BF4)2 · 0.5MeOH (1), in which each Fe(III) ion is coordinated to a TPyA and an F- ion as well as an oxo ion (O2-) linking two Fe(III) ions. 1 has offset face-to-face π-π interactions between the dimers, and possesses a supramolecular network structure. The magnetic susceptibility of 1 can be fit with g = 2.0, J/kB = - 153 K (106 cm-1), and θ = - 0.3 K [H = - 2JSa · Sb]. These indicate that very strong antiferromagnetic interactions occur via the oxo bridge within the Fe(III) dimer and weak antiferromagnetic interactions between the dimers.

AB - The reaction of [FeII(H2O)6](BF4)2 with tris(2-pyridylmethyl)amine (TPyA) and triethylamine in methanol under aerobic conditions forms [(TPyA)FFeIIIOFeIIIF(TPyA)](BF4)2 · 0.5MeOH (1), in which each Fe(III) ion is coordinated to a TPyA and an F- ion as well as an oxo ion (O2-) linking two Fe(III) ions. 1 has offset face-to-face π-π interactions between the dimers, and possesses a supramolecular network structure. The magnetic susceptibility of 1 can be fit with g = 2.0, J/kB = - 153 K (106 cm-1), and θ = - 0.3 K [H = - 2JSa · Sb]. These indicate that very strong antiferromagnetic interactions occur via the oxo bridge within the Fe(III) dimer and weak antiferromagnetic interactions between the dimers.

KW - Antiferromagnetic interaction

KW - Dinuclear iron(III) complex

KW - Offset π-π interaction

KW - Oxo-bridged complex

KW - X-ray crystal structure

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JF - Inorganica Chimica Acta

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