Ferromagnetic Coupling in an Fe[C(SiMe3)(3)](2)/Ferrihydrite Hetero-Mixture Molecular Magnet: Ferromagnetic Coupling in Fe[C(SiMe3)3]2/Ferrihydrite

Erno Kuzmann, Giorgio Zoppellaro, Jiri Pechousek, Jan Cuda, Zoltan Klencsar, Zoltan Homonnay, Jiri Tucek, Roland Szalay, Mátyás Imre Pápai, Libor Machala, Radek Zboril

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Abstract

Magnetization and low temperature in-field Fe-57 Mossbauer spectroscopy measurements have been performed on a Fe[C(SiMe3)(3)](2)/ferrihydrite hetero-mixture. The results indicate the presence of ferromagnetic coupling of magnetic moments involving Fe[C(SiMe3)(3)](2) with a hyperfine magnetic field of about 151 T, attributable mainly to the non-frozen atomic orbital contribution. The present findings show the sensitivity of single-ion molecular magnets to local alterations of their lattice-environment and might explain and reconcile some of the differences found in the literature for the observed bulk magnetic properties of the title Fe[C(SiMe3)(3)](2) compound.
Original languageEnglish
JournalEuropean Journal of Inorganic Chemistry
Volume2014
Issue number20
Pages (from-to)3178-3183
Number of pages6
ISSN1434-1948
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Iron
  • Magnetic properties
  • Metal-organic frameworks
  • Molecular magnets
  • Mössbauer spectroscopy

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