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Rai, D.*; 北村 暁; Altmaier, M.*; Rosso, K. M.*; 佐々木 隆之*; 小林 大志*
Journal of Solution Chemistry, 47(5), p.855 - 891, 2018/05
被引用回数:9 パーセンタイル:9.27(Chemistry, Physical)ジルコニウムについて、単核および複核の加水分解種の生成定数および非晶質二酸化ジルコニウム(ZrO(am))の溶解度積を導出した実験データをレビューした。このレビューを通して、加水分解種(Zr(OH), Zr(OH)(aq), Zr(OH), Zr(OH)およびCaZr(OH))の生成定数やZrO(am)の溶解度積を新規に決定もしくは改訂した。
青柳 登; 虎石 貴*; 長崎 晋也*; 田中 知*
Journal of Applied Solution Chemistry and Modeling, 1(2), p.148 - 155, 2012/12
The complexation behavior of Eu aquo ions by picolinic acid in aqueous solutions is investigated so as to describe the formation of poly nuclear complexes which are uncommon for trivalent lanthanides. Potentiometric titration exhibited that no poly-nuclear complexes form via hydroxide bridges even at high pH, providing a monomeric form, [Eu(Pic)(HO)], with picolinate ligand in a large excess. In addition, the lifetime analysis of Eu luminescence in time-resolved laser-induced fluorescence spectroscopy was performed under the condition where Eu(pic) appears as the secondary dominant species. The result showed the strong quenching of luminescence, suggesting the polymeric complexes, [Eu(Pic)], form even at low pH due to the vicinal Eu-Eu interaction.