A comparison of the effects of symmetry and magnetoanisotropy on paramagnetic relaxation in related dysprosium single ion magnets

Chem Commun (Camb). 2012 Jun 7;48(45):5593-5. doi: 10.1039/c2cc31227a. Epub 2012 Apr 24.

Abstract

Dysprosium complexes of the tmtaa(2-) ligand were synthesized and characterized by X-band EPR and magnetism studies. Both complexes demonstrate magnetoanisotropy and slow paramagnetic relaxation. Comparison of these compounds with the seminal phthalocyanine complex [Dy(Pc)(2)](-) shows the azaannulide complexes are more susceptible to relaxation through non-thermal pathways.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Coordination Complexes / chemical synthesis
  • Coordination Complexes / chemistry*
  • Dysprosium / chemistry*
  • Electron Spin Resonance Spectroscopy
  • Indoles / chemistry*
  • Ions / chemical synthesis
  • Ions / chemistry
  • Isoindoles
  • Magnets / chemistry*
  • Models, Molecular

Substances

  • Coordination Complexes
  • Indoles
  • Ions
  • Isoindoles
  • Dysprosium
  • phthalocyanine