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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Vydáno v:Chemical science (Cambridge) Ročník 9; číslo 5; s. 1221 - 1230
Hlavní autoři: 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
Médium: Journal Article
Jazyk:angličtina
Vydáno: England Royal Society of Chemistry 2018
Témata:
Chemistry
Coupling (molecular)
Couplings
Magnetic anisotropy
Magnetic measurement
Magnetic properties
Magnetism
ISSN:2041-6520, 2041-6539
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Shrnutí: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