title: Iron polyoxometalate single-molecule magnets.
abstract: Iron sandwich on a tungstate bun: Two new polyoxotungstates with paramagnetic iron(III) heteroatoms (see structure, W blue, Fe yellow, O red) possess S=15/2 and S=5 ground states. Both compounds are single-molecule magnets, and the hexairon species shows large hysteresis (see picture) and quantum tunneling effects at low temperature. Electrochemical studies indicate that these species are stable in solution for a wide range of pH values.
authors.affiliation: Institut Lavoisier de Versailles, UMR 8180, Université de Versailles Saint-Quentin, 45 Avenue des Etats-Unis, 78035 Versailles, France.
authors.forename: Jean-Daniel
authors.initials: JD
authors.lastname: Compain
authors.forename: Pierre
authors.initials: P
authors.lastname: Mialane
authors.forename: Anne
authors.initials: A
authors.lastname: Dolbecq
authors.forename: Israël Martyr
authors.initials: IM
authors.lastname: Mbomekallé
authors.forename: Jérôme
authors.initials: J
authors.lastname: Marrot
authors.forename: Francis
authors.initials: F
authors.lastname: Sécheresse
authors.forename: Eric
authors.initials: E
authors.lastname: Rivière
authors.forename: Guillaume
authors.initials: G
authors.lastname: Rogez
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer