Lanthanide double-decker complexes functioning as magnets at the single-molecular level.
J Am Chem Soc
; 125(29): 8694-5, 2003 Jul 23.
Article
em En
| MEDLINE
| ID: mdl-12862442
ABSTRACT
Double-decker phthalocyanine complexes with Tb3+ or Dy3+ showed slow magnetization relaxation as a single-molecular property. The temperature ranges in which the behavior was observed were far higher than that of the transition-metal-cluster single-molecule magnets (SMMs). The significant temperature rise results from a mechanism in the relaxation process different from that in the transition-metal-cluster SMMs. The effective energy barrier for reversal of the magnetic moment is determined by the ligand field around a lanthanide ion, which gives the lowest degenerate substate a large |Jz| value and large energy separations from the rest of the substates in the ground-state multiplets.
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MEDLINE
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article