Formal encapsulation of [Fe(H2O)6](3+) by {Fe2(hpdta)} units gives a system of S= 13/2 Fe(III)9 oxo clusters showing magnetic hysteresis

Under solvothermal conditions the unprecedented nonanuclear Fe(III) aggregate [Fe9(mu3-O)4(mu-OH)4(hpdta)4]5- is formed through the formal encapsulation of [Fe(H2O)6]3+ by four [Fe2(hpdta)(H2O)2]+ units: the aggregates have ground state spins of S= 13/2 while the observed hysteresis below 1.8 K resu...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2005-04 (16), p.2098-2100
Main Authors: Schmitt, Wolfgang, Anson, Christopher E, Wernsdorfer, Wolfgang, Powell, Annie K
Format: Article
Language:English
Subjects:
Ferric Compounds - chemical synthesis
Ferric Compounds - chemistry
Magnetics
Models, Molecular
Molecular Structure
Stereoisomerism
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Summary:Under solvothermal conditions the unprecedented nonanuclear Fe(III) aggregate [Fe9(mu3-O)4(mu-OH)4(hpdta)4]5- is formed through the formal encapsulation of [Fe(H2O)6]3+ by four [Fe2(hpdta)(H2O)2]+ units: the aggregates have ground state spins of S= 13/2 while the observed hysteresis below 1.8 K results from inter-cluster antiferromagnetic coupling.
ISSN:1359-7345
DOI:10.1039/b416766j