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A Polynuclear Lanthanide Single‐Molecule Magnet with a Record Anisotropic Barrier
Author(s) -
Lin PoHeng,
Burchell Tara J.,
Ungur Liviu,
Chibotaru Liviu F.,
Wernsdorfer Wolfgang,
Murugesu Muralee
Publication year - 2009
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/anie.200903199
Subject(s) - single molecule magnet , lanthanide , hydrazone , magnet , anisotropy , molecule , crystallography , core (optical fiber) , hysteresis , materials science , physics , chemistry , stereochemistry , condensed matter physics , optics , organic chemistry , magnetization , quantum mechanics , ion , magnetic field
Magnetic measurements on a {Dy 4 } single‐molecule magnet (SMM) with a defect‐dicubane central core, synthesized using 1,2‐bis(2‐hydroxy‐3‐methoxybenzylidene) hydrazone and 3‐methoxysalicylaldehyde hydrazone as chelating agents (see structure; yellow Dy, red O, blue N, green Cl), confirm SMM behavior and reveal hysteresis loops at 7 K. The anisotropic energy barrier of U eff =170 K is the highest reported to date.