Structure and Magnetic Properties of Lanthanide Compounds with the 3,6-Di(Tert-Butyl)-1,2-Benzoquinone Radical Anion
- Authors: Romanenko G.V.1, Fokin S.V.1, Letyagin G.A.1,2, Bogomyakov A.S.1, Ovcharenko V.I.1
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Affiliations:
- International Tomography Center, Siberian Branch
- Novosibirsk State University
- Issue: Vol 60, No 7 (2019)
- Pages: 1091-1100
- Section: Article
- URL: https://journals.rcsi.science/0022-4766/article/view/162149
- DOI: https://doi.org/10.1134/S0022476619070102
- ID: 162149
Cite item
Abstract
Molecular and crystal structures of mononuclear lanthanide (Ln) compounds with the 3,6-di(tert-butyl)-1,2-benzoquinone (SQ) radical anion of the composition [Ln(SQ)3(THF)2] (Ln = Pr, Nd, Eu, Tb, Dy), [Ln(SQ)3(Q)], (Ln = Gd, Eu; Q – 3,6-di(tert-butyl)-1,2-benzoquinone), [La(SQ)3(Q)(THF)], [CeIV(SQ)4], [NaLn(SQ)4(THF)3]·0.25C6H14 (Ln = Gd, Tb), [NaLn(SQ)4(Q)(THF)] (Ln = La, Pr) are determined. The study of the magnetic properties of isolated heterospin solid phases reveals that intramolecular antiferromagnetic exchange interactions between unpaired electrons of SQ moieties dominate in them. At T≤2 K [Dy(SQ)3(THF)2] exhibits the properties typical of a metamagnetic compound.
About the authors
G. V. Romanenko
International Tomography Center, Siberian Branch
Author for correspondence.
Email: romanenko@tomo.nsc.ru
Russian Federation, Novosibirsk
S. V. Fokin
International Tomography Center, Siberian Branch
Email: romanenko@tomo.nsc.ru
Russian Federation, Novosibirsk
G. A. Letyagin
International Tomography Center, Siberian Branch; Novosibirsk State University
Email: romanenko@tomo.nsc.ru
Russian Federation, Novosibirsk; Novosibirsk
A. S. Bogomyakov
International Tomography Center, Siberian Branch
Email: romanenko@tomo.nsc.ru
Russian Federation, Novosibirsk
V. I. Ovcharenko
International Tomography Center, Siberian Branch
Email: romanenko@tomo.nsc.ru
Russian Federation, Novosibirsk
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