title: 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.
abstract: 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.
authors.affiliation: Institut fur Anorganische Chemie, Universitat Karlsruhe, Engesserstr. 15, 76128 Karlsruhe, Germany. powell@chemie.uni-karlsruhe.de.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schmitt
authors.forename: Christopher E
authors.initials: CE
authors.lastname: Anson
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer
authors.forename: Annie K
authors.initials: AK
authors.lastname: Powell
mesh_terms: D005290:Ferric Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D008280:Magnetics; D008958:Models, Molecular; D015394:Molecular Structure; D013237:Stereoisomerism
chemical_list: D005290:Ferric Compounds