Antiferromagnetic exchange in meta-phenylene bridged 
bis(tris-o-iminosemiquinonato)metal complexes

Dei, A.; Gatteschi, D.; Sangregorio, C.; Sorace, L.; Vaz, M. G. F.

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Antiferromagnetic exchange in meta-phenylene bridged bis(tris-o-iminosemiquinonato)metal complexes

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Sorace, L.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Dei, A., Gatteschi, D., Sangregorio, C., Sorace, L., & Vaz, M. G. F. (2004). Antiferromagnetic exchange in meta-phenylene bridged bis(tris-o-iminosemiquinonato)metal complexes. Journal of Magnetism and Magnetic Materials, 272-276, 1083-1084.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FFE1-5

Abstract

By reaction of the ligand N,N-t
bis(3,5-di-tert-butyl-2-hydroxyphenyl)-1,3-phenylenediamine (1), with
Fe, Co or Mn salts, three complexes were synthesized where the
bis-bidentate ligand is in the bis-semiquinonato oxidation state.
Although the in-phenylene linker is known to afford ferromagnetic
coupling in diradicals, the antiferromagnetic interaction of
intramolecular origin we observed is not unexpected, given the large
torsion angles between the semiquinonato and the m-phenylene planes.
(C) 2004 Elsevier B.V. All rights reserved.