Equilibrium studies on the species formed in the extraction of divalent transition metal ions with 8-quinolinethiol and its 2-methyl derivative.
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概要
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The equilibria were studied in the extraction of divalent transition metal ions (M<SUP>2+</SUP>: Co<SUP>2+</SUP>, Ni<SUP>2+</SUP>, Cu<SUP>2+</SUP>, Zn<SUP>2+</SUP>, Cd<SUP>2+</SUP>) with 8-quinolinethiol(Hqt) and its 2-methyl derivative (Hmqt). Precipitates form in the Cd–Hqt and Cu–Hmqt systems. In other systems except the Co–Hqt, ML<SUB>2</SUB>(L<SUP>−</SUP>: qt<SUP>−</SUP> or mqt<SUP>−</SUP>) is responsible for the extraction. Effects of anions and solvents were examined in the Zn–Hqt system. The Ni(qt)<SUB>2</SUB>, Ni(mqt)<SUB>2</SUB>, and Co(mqt)<SUB>2</SUB> complexes hold the capacity to form the adduct with 1,10-phenanthroline. A mixture of diamagnetic Co(III) complexes is extracted in the Co–Hqt system. The main species was assigned as <I>mer</I>(<I>S</I>)-Co(qt)<SUB>3</SUB> by the <SUP>13</SUP>C NMR spectrum. The structures of other complexes are also discussed.
- 公益社団法人 日本化学会の論文
著者
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Yuchi Akio
Department Of Applied Chemistry Graduate School Of Engineering Nagoya Institute Of Technology
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Wada Hiroko
Department Of Applied Chemistry Nagoya Insitute Of Technology
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Nakagawa Genkichi
Department of Applied Chemistry, Nagoya Institute of Technology
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Sugiura Kiminari
Department of Applied Chemistry, Nagoya Institute of Technology
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