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Resonant Quantum Tunneling in a New Tetranuclear Iron(III)-Based Single-Molecule Magnet


  • The authors thank the ESF (Programme Molecular Magnets) and the European Community (TMR network “Molecules as Nanomagnets” HPRN-CT-1999-00012).


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Complexing deprotonated trihydromethylethane with iron(III) leads to the formation of a tetranuclear iron cluster (see Figure) with a S = 5 spin ground state and a appreciable magnetic anisotropy. Low-temperature investigations demonstrate single molecule magnet behavior and resonant tunneling within the ground state.

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