Issue 21, 2017

Strong direct exchange coupling and single-molecule magnetism in indigo-bridged lanthanide dimers

Abstract

The synthesis, structure and magnetic properties of the indigo-bridged dilanthanide complexes [{(η5-Cp*)2Ln}2(μ-ind)]n with Ln = Gd or Dy and n = 0, 1 or 2 are described. The gadolinium complexes with n = 0 and 2 show typically weak exchange coupling, whereas the complex bridged by the radical [ind]3− ligand shows an unusually large coupling constant of J = −11 cm−1 (−2J formalism). The dysprosium complexes with n = 0 and 1 are single-molecule magnets in zero applied field, whereas the complex with n = 2 does not show slow magnetic relaxation.

Graphical abstract: Strong direct exchange coupling and single-molecule magnetism in indigo-bridged lanthanide dimers

Supplementary files

Article information

Article type
Communication
Submitted
09 Febr. 2017
Accepted
23 Febr. 2017
First published
23 Febr. 2017

Chem. Commun., 2017,53, 3130-3133

Strong direct exchange coupling and single-molecule magnetism in indigo-bridged lanthanide dimers

F. Guo and R. A. Layfield, Chem. Commun., 2017, 53, 3130 DOI: 10.1039/C7CC01046J

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