Synthesis and properties of lanthanide(III) complexes containing pyridine-substituted imino nitroxide radical

Toshiaki Tsukuda; Takayoshi Suzuki; Sumio Kaizaki

Synthesis and properties of lanthanide(III) complexes containing pyridine-substituted imino nitroxide radical

Toshiaki Tsukuda, Takayoshi Suzuki, Sumio Kaizaki

Research output: Contribution to journal › Article

Abstract

Some lanthanide(111) complexes containing three types of a chelated n-methylpyridine-substituted imino nitroxide radical IMnMe2py(n=4,5,6) were synthesized with a small size of the multi-spin system. X-ray structural analysis of [Gd(hfac)₃(IM6Me2py)], [Dy(hfac)₃(IM4Me2py)] and [Dy(hfac)₃(IM-5Me2py)] demonstrated that they are rigidly eight-coordinated with one IMnMe2py and three hfac ligands. Magnetic susceptibility measurements of the Gd(111) complexes indicate that the antiferromagnetic interaction between Gd(III) and imino nitroxide radical is different from the other lanthanide complexes containing nitronyl nitroxide radicals.

Original language	English
Pages (from-to)	159-164
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	379
Publication status	Published - Dec 1 2002
Externally published	Yes

Keywords

Crystal structures
Imino nitroxide radical
Lanthanide
Magnetic interaction

ASJC Scopus subject areas

Condensed Matter Physics

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Tsukuda, T., Suzuki, T., & Kaizaki, S. (2002). Synthesis and properties of lanthanide(III) complexes containing pyridine-substituted imino nitroxide radical. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 379, 159-164.

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abstract = "Some lanthanide(111) complexes containing three types of a chelated n-methylpyridine-substituted imino nitroxide radical IMnMe2py(n=4,5,6) were synthesized with a small size of the multi-spin system. X-ray structural analysis of [Gd(hfac)3(IM6Me2py)], [Dy(hfac)3(IM4Me2py)] and [Dy(hfac)3(IM-5Me2py)] demonstrated that they are rigidly eight-coordinated with one IMnMe2py and three hfac ligands. Magnetic susceptibility measurements of the Gd(111) complexes indicate that the antiferromagnetic interaction between Gd(III) and imino nitroxide radical is different from the other lanthanide complexes containing nitronyl nitroxide radicals.",

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N2 - Some lanthanide(111) complexes containing three types of a chelated n-methylpyridine-substituted imino nitroxide radical IMnMe2py(n=4,5,6) were synthesized with a small size of the multi-spin system. X-ray structural analysis of [Gd(hfac)3(IM6Me2py)], [Dy(hfac)3(IM4Me2py)] and [Dy(hfac)3(IM-5Me2py)] demonstrated that they are rigidly eight-coordinated with one IMnMe2py and three hfac ligands. Magnetic susceptibility measurements of the Gd(111) complexes indicate that the antiferromagnetic interaction between Gd(III) and imino nitroxide radical is different from the other lanthanide complexes containing nitronyl nitroxide radicals.

AB - Some lanthanide(111) complexes containing three types of a chelated n-methylpyridine-substituted imino nitroxide radical IMnMe2py(n=4,5,6) were synthesized with a small size of the multi-spin system. X-ray structural analysis of [Gd(hfac)3(IM6Me2py)], [Dy(hfac)3(IM4Me2py)] and [Dy(hfac)3(IM-5Me2py)] demonstrated that they are rigidly eight-coordinated with one IMnMe2py and three hfac ligands. Magnetic susceptibility measurements of the Gd(111) complexes indicate that the antiferromagnetic interaction between Gd(III) and imino nitroxide radical is different from the other lanthanide complexes containing nitronyl nitroxide radicals.

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