Tuning of Magnetic Anisotropy in Hexairon(III) Rings by Host-Guest Interactions: An Investigation by High-Field Torque Magnetometry

Tuning of Magnetic Anisotropy in Hexairon(III) Rings by Host-Guest Interactions: An Investigation by High-Field Torque Magnetometry

Full chemical control of magnetic anisotropy in hexairon(III) rings can be achieved by varying the size of the guest alkali metal ion. Dramatically different anisotropies characterize the LiI and NaI complexes of [Fe6(OMe)12(L)6] (L=1,3‐propanedione derivatives; a schematic representation of the LiI...

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Veröffentlicht in:Angewandte Chemie International Edition 1999-08, Vol.38 (15), p.2264-2266
Hauptverfasser: Cornia, Andrea, Affronte, Marco, Jansen, Aloysius G. M., Abbati, Gian Luca, Gatteschi, Dante
Format: Artikel
Sprache:eng
Schlagworte:
Cluster compounds
Host-guest chemistry
Iron
Magnetic properties
Spin crossover
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Zusammenfassung:Full chemical control of magnetic anisotropy in hexairon(III) rings can be achieved by varying the size of the guest alkali metal ion. Dramatically different anisotropies characterize the LiI and NaI complexes of [Fe6(OMe)12(L)6] (L=1,3‐propanedione derivatives; a schematic representation of the LiI complex is shown), as revealed by high‐field torque magnetometry—Iron: (g), oxygen: ○, carbon: ○, Li+: ⊕.
ISSN:1433-7851
1521-3773
DOI:10.1002/(SICI)1521-3773(19990802)38:15<2264::AID-ANIE2264>3.0.CO;2-L