Crystal structure and magnetic property of cubane tetranuclear copper(II) complex with ferromagnetic coupling.
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概要
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The magnetic susceptibility measurement down to the liquid helium temperature and the single-crystal X-ray analysis of alkoxo-oxygen bridged tetranuclear copper(II) complex [CuL]<SUB>4</SUB> have been performed, where H<SUB>2</SUB>L is a tridentate ligand derived from condensation of 3-ethoxymethylene-2,4-pentanedione and 2-aminoethanol. The magnetic data demonstrated that the four unpaired electrons of the four copper(II) ions are ferromagnetically coupled, the ground spin state of the cubane molecule being <I>S</I>=2. The structural analysis has confirmed several structural features, i.e., the distorted Cu<SUB>4</SUB>O<SUB>4</SUB> cubane structure, the square pyramidal coordination geometry, nearly perpendicular arrengement between adjacent basal coordination planes, and inequivalent Cu–O bond distances.
- 公益社団法人 日本化学会の論文
著者
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Okawa Hisashi
Department Of Chemistry Faculty Of Science Kyushu University
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Matsumoto Naohide
Department Of Chemistry Faculty Of Science Kumamoto University
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Kodera Masahito
Department Of Molecular Chemistry And Biochemistry Doshisha University
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Kondo Takashi
Department Of Agricultural Chemistry The University Of Tokyo
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Kida Sigeo
Department of Chemistry Wakayama University
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