Synthesis, structural characterisation and magnetic studies of polymetallic iron phosphonate cages

Sumit Khanra; Madeleine Helliwell; Floriana Tuna; Eric J L McInnes; Richard E P Winpenny

doi:10.1039/b903600h

Synthesis, structural characterisation and magnetic studies of polymetallic iron phosphonate cages

Sumit Khanra, Madeleine Helliwell, Floriana Tuna, Eric J L McInnes, Richard E P Winpenny

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

Abstract

Four new polymetallic iron(III) phosphonate cages have been made and structurally characterised. These are an octanuclear cage [Fe8O 3(OH)2(O2CtBu) 11(PhCH2PO3)3(py)3], a decanuclear cage [Fe10O2(OH)8(O 2CtBu)10(PhCH2PO3) 4(pip)2], a heterometallic cage [Fe6Li 5(μ3-O)2(tBuPO3) 6(O2CtBu)8(MeOH)2(Py) 4] and a tridecanuclear cage [Et3NH]2[Fe 13(μ3-O)3(μ2-OH) 7(tBuPO3)7(Me3CCO 2)14(H2O)] (pip = piperidine, py = pyridine). Magnetic studies of the first three compounds show anti-ferromagnetic exchange between the iron(III) centers leading to diamagnetic ground states for the homometallic cages. For the heterometallic cage, the six Fe(III) centers are arranged in two triangles, and each triangle has an S = 1/2 spin ground state. © The Royal Society of Chemistry 2009.

Original language	English
Pages (from-to)	6166-6174
Number of pages	8
Journal	Dalton Transactions
Issue number	31
DOIs	https://doi.org/10.1039/b903600h
Publication status	Published - 2009

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10.1039/b903600h

CCDC 721216: Experimental Crystal Structure Determination
Khanra, S. (Contributor), Helliwell, M. (Contributor), Tuna, F. (Contributor), Mcinnes, E. (Contributor) & Winpenny, R. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2010
DOI: 10.5517/ccs6h1h, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccs6h1h&sid=DataCite
Dataset
CCDC 721215: Experimental Crystal Structure Determination
Khanra, S. (Contributor), Helliwell, M. (Contributor), Tuna, F. (Contributor), Mcinnes, E. (Contributor) & Winpenny, R. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2010
DOI: 10.5517/ccs6h0g, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccs6h0g&sid=DataCite
Dataset
CCDC 721217: Experimental Crystal Structure Determination
Khanra, S. (Contributor), Helliwell, M. (Contributor), Tuna, F. (Contributor), Mcinnes, E. (Contributor) & Winpenny, R. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2010
DOI: 10.5517/ccs6h2j, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccs6h2j&sid=DataCite
Dataset

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@article{13f7c1ec5aae431b956ca48d9dc228a0,

title = "Synthesis, structural characterisation and magnetic studies of polymetallic iron phosphonate cages",

abstract = "Four new polymetallic iron(III) phosphonate cages have been made and structurally characterised. These are an octanuclear cage [Fe8O 3(OH)2(O2CtBu) 11(PhCH2PO3)3(py)3], a decanuclear cage [Fe10O2(OH)8(O 2CtBu)10(PhCH2PO3) 4(pip)2], a heterometallic cage [Fe6Li 5(μ3-O)2(tBuPO3) 6(O2CtBu)8(MeOH)2(Py) 4] and a tridecanuclear cage [Et3NH]2[Fe 13(μ3-O)3(μ2-OH) 7(tBuPO3)7(Me3CCO 2)14(H2O)] (pip = piperidine, py = pyridine). Magnetic studies of the first three compounds show anti-ferromagnetic exchange between the iron(III) centers leading to diamagnetic ground states for the homometallic cages. For the heterometallic cage, the six Fe(III) centers are arranged in two triangles, and each triangle has an S = 1/2 spin ground state. {\textcopyright} The Royal Society of Chemistry 2009.",

author = "Sumit Khanra and Madeleine Helliwell and Floriana Tuna and McInnes, {Eric J L} and Winpenny, {Richard E P}",

year = "2009",

doi = "10.1039/b903600h",

language = "English",

pages = "6166--6174",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "31",

}

TY - JOUR

T1 - Synthesis, structural characterisation and magnetic studies of polymetallic iron phosphonate cages

AU - Khanra, Sumit

AU - Helliwell, Madeleine

AU - Tuna, Floriana

AU - McInnes, Eric J L

AU - Winpenny, Richard E P

PY - 2009

Y1 - 2009

N2 - Four new polymetallic iron(III) phosphonate cages have been made and structurally characterised. These are an octanuclear cage [Fe8O 3(OH)2(O2CtBu) 11(PhCH2PO3)3(py)3], a decanuclear cage [Fe10O2(OH)8(O 2CtBu)10(PhCH2PO3) 4(pip)2], a heterometallic cage [Fe6Li 5(μ3-O)2(tBuPO3) 6(O2CtBu)8(MeOH)2(Py) 4] and a tridecanuclear cage [Et3NH]2[Fe 13(μ3-O)3(μ2-OH) 7(tBuPO3)7(Me3CCO 2)14(H2O)] (pip = piperidine, py = pyridine). Magnetic studies of the first three compounds show anti-ferromagnetic exchange between the iron(III) centers leading to diamagnetic ground states for the homometallic cages. For the heterometallic cage, the six Fe(III) centers are arranged in two triangles, and each triangle has an S = 1/2 spin ground state. © The Royal Society of Chemistry 2009.

AB - Four new polymetallic iron(III) phosphonate cages have been made and structurally characterised. These are an octanuclear cage [Fe8O 3(OH)2(O2CtBu) 11(PhCH2PO3)3(py)3], a decanuclear cage [Fe10O2(OH)8(O 2CtBu)10(PhCH2PO3) 4(pip)2], a heterometallic cage [Fe6Li 5(μ3-O)2(tBuPO3) 6(O2CtBu)8(MeOH)2(Py) 4] and a tridecanuclear cage [Et3NH]2[Fe 13(μ3-O)3(μ2-OH) 7(tBuPO3)7(Me3CCO 2)14(H2O)] (pip = piperidine, py = pyridine). Magnetic studies of the first three compounds show anti-ferromagnetic exchange between the iron(III) centers leading to diamagnetic ground states for the homometallic cages. For the heterometallic cage, the six Fe(III) centers are arranged in two triangles, and each triangle has an S = 1/2 spin ground state. © The Royal Society of Chemistry 2009.

U2 - 10.1039/b903600h

DO - 10.1039/b903600h

M3 - Article

SN - 1477-9226

SP - 6166

EP - 6174

JO - Dalton Transactions

JF - Dalton Transactions

IS - 31

ER -

Synthesis, structural characterisation and magnetic studies of polymetallic iron phosphonate cages

Abstract

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Datasets

CCDC 721216: Experimental Crystal Structure Determination

CCDC 721215: Experimental Crystal Structure Determination

CCDC 721217: Experimental Crystal Structure Determination

Cite this