Double-exchange interactions in the mixed-valence hexanuclear octahedral clusters [Fe6(μ3-X)8(PEt3)6]+ (X = S, Se)

Alessandro Bencini; Andrew V. Palii; Sergei M. Ostrovsky; Boris S. Tsukerblat; Myriam G. Uytterhoeven

doi:10.1080/00268979500102601

Double-exchange interactions in the mixed-valence hexanuclear octahedral clusters [Fe₆(μ₃-X)₈(PEt₃)6]⁺ (X = S, Se)

Alessandro Bencini
, Andrew V. Palii
, Sergei M. Ostrovsky
, Boris S. Tsukerblat
, Myriam G. Uytterhoeven

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

17 Scopus citations

Abstract

A model that considers the double exchange and isotropic exchange is developed to account for the magnetic properties of the hexanuclear octahedral clusters [Fe₆(μ₃-X₈)(PEt₃)₆]⁺ (X = S, Se), in which one extra electron added to the [Fe₆(μ₃-X₈)(PEt₃)₆]²⁺ is delocalized over six structurally equivalent iron centres. The ground state of the complexes is S = 7/2 and, in our model, it can arise from either a ferromagnetic or an antiferromagnetic exchange interaction between the unpaired spins on Fe, provided that the sign of the transfer integral p is negative.

Original language	English
Pages (from-to)	1085-1097
Number of pages	13
Journal	Molecular Physics
Volume	86
Issue number	5
DOIs	https://doi.org/10.1080/00268979500102601
State	Published - 10 Dec 1995
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Biophysics
Molecular Biology
Condensed Matter Physics
Physical and Theoretical Chemistry

Access to Document

10.1080/00268979500102601

Cite this

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title = "Double-exchange interactions in the mixed-valence hexanuclear octahedral clusters [Fe6(μ3-X)8(PEt3)6]+ (X = S, Se)",

abstract = "A model that considers the double exchange and isotropic exchange is developed to account for the magnetic properties of the hexanuclear octahedral clusters [Fe6(μ3-X8)(PEt3)6]+ (X = S, Se), in which one extra electron added to the [Fe6(μ3-X8)(PEt3)6]2+ is delocalized over six structurally equivalent iron centres. The ground state of the complexes is S = 7/2 and, in our model, it can arise from either a ferromagnetic or an antiferromagnetic exchange interaction between the unpaired spins on Fe, provided that the sign of the transfer integral p is negative.",

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T1 - Double-exchange interactions in the mixed-valence hexanuclear octahedral clusters [Fe6(μ3-X)8(PEt3)6]+ (X = S, Se)

AU - Bencini, Alessandro

AU - Palii, Andrew V.

AU - Ostrovsky, Sergei M.

AU - Tsukerblat, Boris S.

AU - Uytterhoeven, Myriam G.

PY - 1995/12/10

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N2 - A model that considers the double exchange and isotropic exchange is developed to account for the magnetic properties of the hexanuclear octahedral clusters [Fe6(μ3-X8)(PEt3)6]+ (X = S, Se), in which one extra electron added to the [Fe6(μ3-X8)(PEt3)6]2+ is delocalized over six structurally equivalent iron centres. The ground state of the complexes is S = 7/2 and, in our model, it can arise from either a ferromagnetic or an antiferromagnetic exchange interaction between the unpaired spins on Fe, provided that the sign of the transfer integral p is negative.

AB - A model that considers the double exchange and isotropic exchange is developed to account for the magnetic properties of the hexanuclear octahedral clusters [Fe6(μ3-X8)(PEt3)6]+ (X = S, Se), in which one extra electron added to the [Fe6(μ3-X8)(PEt3)6]2+ is delocalized over six structurally equivalent iron centres. The ground state of the complexes is S = 7/2 and, in our model, it can arise from either a ferromagnetic or an antiferromagnetic exchange interaction between the unpaired spins on Fe, provided that the sign of the transfer integral p is negative.

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