Designer SMM: An ErIII-based single-molecule magnet (SMM) was synthesized by designing the ligand-field anisotropy around an ErIII ion in an equatorial arrangement of donors using a rigid and planar macrocyclic Schiff base ligand including three ZnII ions. The resulting ErIIIZnII3 complex (see picture; C gray, O red, N blue) behaves as a SMM with an energy barrier of 24.6(9) K for flipping of the molecular magnetic moment.
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Yamashita et al. (2011) studied this question.
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