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Tuning of Magnetic Anisotropy in Hexairon( III ) Rings by Host–Guest Interactions: An Investigation by High‐Field Torque Magnetometry
Author(s) -
Cornia Andrea,
Affronte Marco,
Jansen Aloysius G. M.,
Abbati Gian Luca,
Gatteschi Dante
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990802)38:15<2264::aid-anie2264>3.0.co;2-l
Subject(s) - magnetometer , anisotropy , schematic , magnetic field , magnetic anisotropy , torque , alkali metal , chemistry , materials science , field (mathematics) , metal , condensed matter physics , nuclear magnetic resonance , physics , magnetization , organic chemistry , optics , thermodynamics , electrical engineering , engineering , quantum mechanics , mathematics , pure mathematics
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 Li I and Na I complexes of [Fe 6 (OMe) 12 (L) 6 ] (L=1,3‐propanedione derivatives; a schematic representation of the Li I complex is shown), as revealed by high‐field torque magnetometry—Iron: (g), oxygen: ○, carbon: ○, Li + : ⊕.