Magnetic and electronic properties of the iron-containing polyoxotungstate [Fe-4(H2O)(10)(beta-SbW9O33)(2)](6-)

Autor(en): Prinz, M.
Takacs, A. F.
Schnack, J. 
Balasz, I.
Burzo, E.
Kortz, U.
Kuepper, K.
Neumann, M.
Stichwörter: MOLECULES; Physics; Physics, Applied; SPECTROSCOPY
Erscheinungsdatum: 2006
Herausgeber: AMER INST PHYSICS
Journal: JOURNAL OF APPLIED PHYSICS
Volumen: 99
Ausgabe: 8
Zusammenfassung: 
The magnetic and x-ray photoelectron spectroscopy (XPS) studies on the transition metal substituted, dimeric polyoxotungstate [Fe-4(H2O)(10)(beta-SbW9O33)(2)](6-) are reported. The magnetic data were analyzed by using an isotropic Heisenberg Hamiltonian. The ground state of the frustrated molecule has a total spin of S=2. The XPS Fe 2p spectra suggest a 2+ formal valence state. The deviation from the contained Fe3+ ions can be explained by charge-transfer effects. (C) 2006 American Institute of Physics.
ISSN: 00218979
DOI: 10.1063/1.2173613

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