Hexa- and octanuclear iron(III) salicylaldoxime clusters

Kevin Mason; Ian A. Gass; Fraser J. White; Giannis Papaefstathiou; Euan K. Brechin; Peter A. Tasker

doi:10.1039/C0DT01593H

Hexa- and octanuclear iron(III) salicylaldoxime clusters

Kevin Mason, Ian A. Gass, Fraser J. White, Giannis Papaefstathiou, Euan K. Brechin, Peter A. Tasker

University of Brighton

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Abstract

The syntheses, structures and magnetic properties of six iron complexes stabilised with the derivatised salicylaldoxime ligands Me-saoH 2 (2-hydroxyethanone oxime) and Et-saoH2 (2-hydroxypropiophenone oxime) are discussed. The four hexanuclear and two octanuclear complexes of formulae [Fe8O2(OMe)4(Me-sao)6Br4(py)4]·2Et2O·MeOH (1·2Et2O·MeOH), [Fe8O2(OMe)3.85(N3)4.15(Mesao)6(py)2] (2), [Fe6O2(O2CPh-4-NO2)4(Me-sao)2(OMe)4Cl2(py)2] (3), [Fe6O2(O2CPh-4-NO2)4(Etsao)2(OMe)4 Cl2(py)2]·2Et2O·MeOH (4·2Et2O·MeOH), [HNEt3]2[Fe6O2(Me-sao)4(SO4)2(OMe)4(MeOH)2] (5) and [HNEt3]2[Fe6O2(Et-sao)4(SO4)2(OMe)4(MeOH)2] (6) all are built from a series of edge-sharing [Fe4(μ4-O)]10+ tetrahedra. Complexes 1 and 2 display a new μ4-coordination mode of the oxime ligand and join a small group of Fe-phenolic oxime complexes with nuclearity greater than six.

Original language	English
Pages (from-to)	2875-2881
Number of pages	7
Journal	Dalton Transactions
Volume	40
Issue number	12
DOIs	https://doi.org/10.1039/C0DT01593H
Publication status	Published - 10 Feb 2011

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@article{023e6a5085f44e54a2a79feec918acb1,

title = "Hexa- and octanuclear iron(III) salicylaldoxime clusters",

abstract = "The syntheses, structures and magnetic properties of six iron complexes stabilised with the derivatised salicylaldoxime ligands Me-saoH 2 (2-hydroxyethanone oxime) and Et-saoH2 (2-hydroxypropiophenone oxime) are discussed. The four hexanuclear and two octanuclear complexes of formulae [Fe8O2(OMe)4(Me-sao)6Br4(py)4]·2Et2O·MeOH (1·2Et2O·MeOH), [Fe8O2(OMe)3.85(N3)4.15(Mesao)6(py)2] (2), [Fe6O2(O2CPh-4-NO2)4(Me-sao)2(OMe)4Cl2(py)2] (3), [Fe6O2(O2CPh-4-NO2)4(Etsao)2(OMe)4 Cl2(py)2]·2Et2O·MeOH (4·2Et2O·MeOH), [HNEt3]2[Fe6O2(Me-sao)4(SO4)2(OMe)4(MeOH)2] (5) and [HNEt3]2[Fe6O2(Et-sao)4(SO4)2(OMe)4(MeOH)2] (6) all are built from a series of edge-sharing [Fe4(μ4-O)]10+ tetrahedra. Complexes 1 and 2 display a new μ4-coordination mode of the oxime ligand and join a small group of Fe-phenolic oxime complexes with nuclearity greater than six.",

author = "Kevin Mason and Gass, {Ian A.} and White, {Fraser J.} and Giannis Papaefstathiou and Brechin, {Euan K.} and Tasker, {Peter A.}",

year = "2011",

month = feb,

day = "10",

doi = "10.1039/C0DT01593H",

language = "English",

volume = "40",

pages = "2875--2881",

journal = "Dalton Transactions",

issn = "1477-9226",

number = "12",

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TY - JOUR

T1 - Hexa- and octanuclear iron(III) salicylaldoxime clusters

AU - Mason, Kevin

AU - Gass, Ian A.

AU - White, Fraser J.

AU - Papaefstathiou, Giannis

AU - Brechin, Euan K.

AU - Tasker, Peter A.

PY - 2011/2/10

Y1 - 2011/2/10

N2 - The syntheses, structures and magnetic properties of six iron complexes stabilised with the derivatised salicylaldoxime ligands Me-saoH 2 (2-hydroxyethanone oxime) and Et-saoH2 (2-hydroxypropiophenone oxime) are discussed. The four hexanuclear and two octanuclear complexes of formulae [Fe8O2(OMe)4(Me-sao)6Br4(py)4]·2Et2O·MeOH (1·2Et2O·MeOH), [Fe8O2(OMe)3.85(N3)4.15(Mesao)6(py)2] (2), [Fe6O2(O2CPh-4-NO2)4(Me-sao)2(OMe)4Cl2(py)2] (3), [Fe6O2(O2CPh-4-NO2)4(Etsao)2(OMe)4 Cl2(py)2]·2Et2O·MeOH (4·2Et2O·MeOH), [HNEt3]2[Fe6O2(Me-sao)4(SO4)2(OMe)4(MeOH)2] (5) and [HNEt3]2[Fe6O2(Et-sao)4(SO4)2(OMe)4(MeOH)2] (6) all are built from a series of edge-sharing [Fe4(μ4-O)]10+ tetrahedra. Complexes 1 and 2 display a new μ4-coordination mode of the oxime ligand and join a small group of Fe-phenolic oxime complexes with nuclearity greater than six.

AB - The syntheses, structures and magnetic properties of six iron complexes stabilised with the derivatised salicylaldoxime ligands Me-saoH 2 (2-hydroxyethanone oxime) and Et-saoH2 (2-hydroxypropiophenone oxime) are discussed. The four hexanuclear and two octanuclear complexes of formulae [Fe8O2(OMe)4(Me-sao)6Br4(py)4]·2Et2O·MeOH (1·2Et2O·MeOH), [Fe8O2(OMe)3.85(N3)4.15(Mesao)6(py)2] (2), [Fe6O2(O2CPh-4-NO2)4(Me-sao)2(OMe)4Cl2(py)2] (3), [Fe6O2(O2CPh-4-NO2)4(Etsao)2(OMe)4 Cl2(py)2]·2Et2O·MeOH (4·2Et2O·MeOH), [HNEt3]2[Fe6O2(Me-sao)4(SO4)2(OMe)4(MeOH)2] (5) and [HNEt3]2[Fe6O2(Et-sao)4(SO4)2(OMe)4(MeOH)2] (6) all are built from a series of edge-sharing [Fe4(μ4-O)]10+ tetrahedra. Complexes 1 and 2 display a new μ4-coordination mode of the oxime ligand and join a small group of Fe-phenolic oxime complexes with nuclearity greater than six.

U2 - 10.1039/C0DT01593H

DO - 10.1039/C0DT01593H

M3 - Article

SN - 1477-9226

VL - 40

SP - 2875

EP - 2881

JO - Dalton Transactions

JF - Dalton Transactions

IS - 12

ER -

Hexa- and octanuclear iron(III) salicylaldoxime clusters

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