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Single molecule magnetism in a μ-phenolato dinuclear lanthanide motif ligated by heptadentate Schiff base ligands
Melina Nematirad1, William J Gee, Stuart K Langley
1School of Chemistry, Monash University, PO Box 23, Clayton, VIC 3800, Australia.
Abstract:
The heptadentate Schiff base ligand, 2-(2-hydroxyphenyl)-1,3-bis[4-(2-hydroxyphenyl)-3-azabut-3-enyl]-1,3-imidazoline (H(3)api), yields [Ln(2)api(2)] species when combined with lanthanide salts under basic conditions. A survey of the magnetic properties of this dinuclear lanthanide motif (Ln = Gd, Tb, Dy, Ho) has identified weak magnetic exchange, antiferromagnetic in nature for the isotropic gadolinium analogue, while single molecule magnetic behaviour is displayed in the case of the anisotropic dysprosium complex.
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