Differential Thermal Analysis of Some Tervalent Metal Chelates of 1,5-Dialkylpentane-2,4-dionates
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概要
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In connection with the purification of metal chelates by zone refining, thermal properties of the following β-diketone chelates of tervalent cobalt(III), aluminum(III), iron(III), manganese(III), and chromium(III) were investigated by differential thermal analysis (DTA). The β-diketones used in this study were heptane-3,5-dione, nonane-4,6-dione, 2,6-dimethylheptane-3,5-dione, 2,8-dimethylnonane-4,6-dione, 2,2,6,6-tetramethylheptane-3,5-dione, and tridecane-6,8-dione. Metal chelates of the alkyl substituted pentane-2,4-diones showed a lower melting- and higher decomposition temperature in comparison with the pentane-2,4-dionates. Discussion is given on the effects due to the structures of the alkyl substituents upon thermal properties of the hexacoordinate metal chelates.
- 公益社団法人 日本化学会の論文
著者
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Yoshida Isao
Department Of Agricultural Engineering Faculty Of Agriculture Tottori University
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Ueno Keihei
Department Of Organic Synthesis Faculty Of Engineering Kyushu University
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Kobayashi Hiroshi
Department Of Applied Physics School Of Science And Engineering Waseda University
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Yoshida Isao
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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