Magnetic Susceptibilities of Octacoordinated Uranium (IV) Complexes
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概要
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Magnetic susceptibility measurements were carried out on octacoordinated uranium(IV) complexes, such as tetrakis(acetylacetonato)uranium (IV), tetrakis(trifluoroacetylacetonato)uranium (IV), tetrakis(benzoylacetonato)uranium(IV), tetrakis(dibenzoylmethanato)uranium(IV), tetrakis(thenoyltrifluoroacetonato)uranium(IV), tetrakis(cupferronato)uranium(IV), and uranium(IV)tetrachloride, in the temperature range from room temperature to the temperature of liquid nitrogen or liquid helium. The Curie-Weiss law holds above the temperature of liquid nitrogen, with a magnetic moment of 3.5–2.92 BM. For the latter two complexes, a temperature-independent paramagnetism was observed in the low temperature range; the other complexes also seemed to show the same trend. We tried to interpret the magnetic behavior on the basis of the crystal-field model of the square antiprism structure or the dodecahedron structure of the complexes.
- 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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Yoshimura Tetsuhiko
Department of Nuclear Engineering, Faculty of Engineering, Osaka University
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