Thermal Dehydration and Decomposition of Dioxalato Complexes of Be(II), Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) in Solid State
スポンサーリンク
概要
- 論文の詳細を見る
The structures of anhydrous dioxalato complexes K<SUB>2</SUB>[M(C<SUB>2</SUB>O<SUB>4</SUB>)<SUB>2</SUB>] (M: Mn(II), Co(II), Ni(II), Cu(II), and Zn(II)) prepared by heating their hydrates, were examined by means of infrared absorption and visible reflectance spectroscopy. It was found that the anhydrous complexes of Mn(II), Co(II), and Zn(II) exist in a polynuclear octahedral form with a bridging oxalate group, and those of Ni(II) and Cu(II), in a monomer form. On further heating, the complexes of Be(II), Mn(II), and Zn(II) decomposed into the corresponding metal oxides and potassium oxalate, and those of Co(II), Ni(II), and Cu(II) into the corresponding metals and potassium oxalate. Except for the beryllium(II) complex, the complexes decomposed at lower temperatures with an increase in 1/<I>r</I>, where <I>r</I> is the radius of metal ion.
- 公益社団法人 日本化学会の論文
著者
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Tanaka Nobuyuki
Department Of Botany Kochi Prefectural Makino Botanical Garden
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Nagase Kenzo
College of General Education, Tohoku University
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SATO Katsuya
Department of Applied Medical Engineering Science, Graduate School of Medicine, Yamaguchi University
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