Chelate stability constants of N-(o-hydroxybenzyl)iminoldiacetic acid (HBIDA) with yttrium and lanthanoid ions.
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概要
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Chelate stability constants of <I>N</I>-(<I>o</I>-hydroxybenzyl)iminodiacetic acid with yttrium and some lanthanoid ions (M<SUP>3+</SUP>) were determined by the potentiometric method at 25 °C and at an ionic strength of 0.1 with potassium nitrate. The computation of the titration data indicated that four kinds of complexes, ML, ML<SUB>2</SUB><SUP>3−</SUP>, M(HL)<SUP>+</SUP>, and M(HL)<SUB>2</SUB><SUP>−</SUP> (except for thulium and lutetium) were formed on each metal ion and the values of the stability constants increased with the increase of atomic number of the element. The values found for the stability constants of yttrium complexes are between those for gadolinium and terbium ions.
- 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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Sagara Fumio
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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