Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

Tetraoxolene radical-bridged lanthanide SMM systems were prepared for the first time by reduction of the respective neutral compounds. Magnetic measurements reveal the profound influence of the radical center on magnetic behavior. Strong magnetic couplings are revealed in the radical species, which...

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Bibliographic Details
Published in:Chemical science (Cambridge) Vol. 9; no. 5; pp. 1221 - 1230
Main Authors: Zhang, Peng, Perfetti, Mauro, Kern, Michal, Hallmen, Philipp P., Ungur, Liviu, Lenz, Samuel, Ringenberg, Mark R., Frey, Wolfgang, Stoll, Hermann, Rauhut, Guntram, van Slageren, Joris
Format: Journal Article
Language:English
Published: England Royal Society of Chemistry 2018
Subjects:
Chemistry
Coupling (molecular)
Couplings
Magnetic anisotropy
Magnetic measurement
Magnetic properties
Magnetism
ISSN:2041-6520, 2041-6539
Online Access:Get full text
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Summary:Tetraoxolene radical-bridged lanthanide SMM systems were prepared for the first time by reduction of the respective neutral compounds. Magnetic measurements reveal the profound influence of the radical center on magnetic behavior. Strong magnetic couplings are revealed in the radical species, which switch on SMM behavior under zero applied field for Dy III and Tb III compounds. HFEPR spectra unravel the contributions of the magnetic coupling and the magnetic anisotropy. For Gd III this results in much more accurate magnetic coupling parameters with respect to bulk magnetic measurements.
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ISSN:2041-6520
2041-6539
DOI:10.1039/C7SC04873D