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Issue 11, 2011
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Exploiting single-ion anisotropy in the design of f-element single-molecule magnets

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Abstract

Scientists have long employed lanthanide elements in the design of materials with extraordinary magnetic properties, including the strongest magnets known, SmCo5 and Nd2Fe14B. The properties of these materials are largely a product of fine-tuning the interaction between the lanthanide ion and the crystal lattice. Recently, synthetic chemists have begun to utilize f-elements—both lanthanides and actinides—for the construction of single-molecule magnets, resulting in a rapid expansion of the field. The desirable magnetic characteristics of the f-elements are contingent upon the interaction between the single-ion electron density and the crystal field environment in which it is placed. This interaction leads to the single-ion anisotropies requisite for strong single-molecule magnets. Therefore, it is of vital importance to understand the particular crystal field environments that could lead to maximization of the anisotropy for individual f-elements. Here, we summarize a qualitative method for predicting the ligand architectures that will generate magnetic anisotropy for a variety of f-element ions. It is hoped that this simple model will serve to guide the design of stronger single-molecule magnets incorporating the f-elements.

Graphical abstract: Exploiting single-ion anisotropy in the design of f-element single-molecule magnets

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Article information


Submitted
29 Jul 2011
Accepted
25 Aug 2011
First published
07 Sep 2011

Chem. Sci., 2011,2, 2078-2085
Article type
Perspective

Exploiting single-ion anisotropy in the design of f-element single-molecule magnets

J. D. Rinehart and J. R. Long, Chem. Sci., 2011, 2, 2078
DOI: 10.1039/C1SC00513H

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