Variable frequency EPR studies of a centered FeIII tetrahedron

Ashley C. Stowe; Johan Van Tol; Naresh S. Dalal; David Collison; Leigh Jones; James Tabernor; Euan K. Brechin

doi:10.1142/S0217979204027591

Variable frequency EPR studies of a centered Fe^III tetrahedron

Ashley C. Stowe^*, Johan Van Tol, Naresh S. Dalal, David Collison, Leigh Jones, James Tabernor, Euan K. Brechin

^*Corresponding author for this work

School of Chemistry

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

Abstract

High frequency EPR investigations have been undertaken to gain insight into the spin environment of a novel pentanuclear Fe^III cluster, [Fe ₅O₂(OMe)₂(Bta)₄(BtaH)/(MeOH) ₅Cl₅] (Fe5Bta). The elongated, centered ferric tetrahedron contains five Fe^III ions with a S = 15/2 ground spin state. Variable temperature EPR suggests that the first paramagnetic excited spin state is low lying. Employing high frequencies and fields in the EPR experiments allows for resolution of g anisotropy of the Fe^III centers. We therefore are able to determine the g value of the Fe^III ion precisely.

Original language	English
Pages (from-to)	3853-3856
Number of pages	4
Journal	International Journal of Modern Physics B
Volume	18
Issue number	27-29
DOIs	https://doi.org/10.1142/S0217979204027591
Publication status	Published - 30 Nov 2004

Keywords / Materials (for Non-textual outputs)

Fe5
HFEPR

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10.1142/S0217979204027591

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title = "Variable frequency EPR studies of a centered FeIII tetrahedron",

abstract = "High frequency EPR investigations have been undertaken to gain insight into the spin environment of a novel pentanuclear FeIII cluster, [Fe 5O2(OMe)2(Bta)4(BtaH)/(MeOH) 5Cl5] (Fe5Bta). The elongated, centered ferric tetrahedron contains five FeIII ions with a S = 15/2 ground spin state. Variable temperature EPR suggests that the first paramagnetic excited spin state is low lying. Employing high frequencies and fields in the EPR experiments allows for resolution of g anisotropy of the FeIII centers. We therefore are able to determine the g value of the FeIII ion precisely.",

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T1 - Variable frequency EPR studies of a centered FeIII tetrahedron

AU - Stowe, Ashley C.

AU - Van Tol, Johan

AU - Dalal, Naresh S.

AU - Collison, David

AU - Jones, Leigh

AU - Tabernor, James

AU - Brechin, Euan K.

PY - 2004/11/30

Y1 - 2004/11/30

N2 - High frequency EPR investigations have been undertaken to gain insight into the spin environment of a novel pentanuclear FeIII cluster, [Fe 5O2(OMe)2(Bta)4(BtaH)/(MeOH) 5Cl5] (Fe5Bta). The elongated, centered ferric tetrahedron contains five FeIII ions with a S = 15/2 ground spin state. Variable temperature EPR suggests that the first paramagnetic excited spin state is low lying. Employing high frequencies and fields in the EPR experiments allows for resolution of g anisotropy of the FeIII centers. We therefore are able to determine the g value of the FeIII ion precisely.

AB - High frequency EPR investigations have been undertaken to gain insight into the spin environment of a novel pentanuclear FeIII cluster, [Fe 5O2(OMe)2(Bta)4(BtaH)/(MeOH) 5Cl5] (Fe5Bta). The elongated, centered ferric tetrahedron contains five FeIII ions with a S = 15/2 ground spin state. Variable temperature EPR suggests that the first paramagnetic excited spin state is low lying. Employing high frequencies and fields in the EPR experiments allows for resolution of g anisotropy of the FeIII centers. We therefore are able to determine the g value of the FeIII ion precisely.

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DO - 10.1142/S0217979204027591

M3 - Article

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EP - 3856

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 27-29

ER -

Variable frequency EPR studies of a centered Fe^III tetrahedron

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