Magnetic-superexchange interactions of uranium(IV) chloride-addition complexes with amides. I.
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概要
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Studies of magnetic susceptibility, χ, from 300 to 2 K on seventeen UCl<SUB>4</SUB>–amide complexes showed that six complexes had maxima in χ between 155 and 82 K. This unusual magnetic behavior occurred only with <I>N</I>-methyl or ethyl-substituted amide complexes. Infrared and chemical evidence indicates that these six complexes probably have dimeric structure, in which two U(IV) ions are bridged by the amide ligands. Assuming a dimer structure and a two-spin Heisenberg model with −2<I>J</I><SUB>ex</SUB> of about 90 cm<SUP>−1</SUP> for the dimer, the magnetic susceptibilities for the six complexes were calculated in good agreement with the experimental results in the temperature region of the maxima in χ.
- 公益社団法人 日本化学会の論文
著者
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Miyake Chie
Department Of Nuclear Engineering Faculty Of Engineering Osaka University
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Imoto Shosuke
Department Of Nuclear Engineering Faculty Of Engineering
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HINATSU Yukio
Department of Chemistry, Tokai Establishment, Japan Atomic Energy Research Institute
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Hinatsu Yukio
Department of Nuclear Engineering, Faculty of Engineering, Osaka University
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