Extraction Behavior of Zinc(II) with .BETA.-Diketone and Schiff Base, and the Effects of Zinc(II) on Extraction and Fluorescence of Tris(.BETA.-diketonato)europium(III)

DOI NDL Digital Collections Web Site Web Site 2 Citations 14 References
  • Tamaki Sayaka
    Department of Chemistry, Faculty of Science, Science University of Tokyo
  • Ito Yuichi
    Department of Chemistry, Faculty of Science, Science University of Tokyo
  • Inoue Masayuki
    Department of Chemistry, Faculty of Science, Science University of Tokyo
  • Yajima Hirofumi
    Department of Chemistry, Faculty of Science, Science University of Tokyo
  • Hasegawa Yuko
    Department of Chemistry, Faculty of Science, Science University of Tokyo

Bibliographic Information

Other Title
  • β‐ジケトンとシッフ塩基による亜鉛（ＩＩ）の抽出挙動とユウロピウム（ＩＩＩ）の抽出と蛍光に及ぼす亜鉛（ＩＩ）の効果
  • β-ジケトンとシッフ塩基による亜鉛(2)の抽出挙動とユウロピウム(3)の抽出と蛍光に及ぼす亜鉛(2)の効果
  • ベータ ジケトン ト シッフ エンキ ニ ヨル アエン 2 ノ チュウシュツ キョドウ ト ユウロピウム 3 ノ チュウシュツ ト ケイコウ ニ オヨボス アエン 2 ノ コウカ

Search this article

Abstract

In the present study, all equilibria occurred upon shaking an aqueous solution containing Zn(II) and Eu(III) with an equal volume of chloroform containing Hpta (pivaloyltrifluoroacetone, HA), and H2(salchn) {bis(salicylidene)cyclohexyldiamine, H2B} were measured and analyzed in order to accumulate fundamental data to prepare a binuclear complex consisting of EuA3 and ZnB. The results showed that H2B formed a complex with ZnA2 as well as EuA3, but ZnB formed a more stable complex with EuA3 than does H2B. Although ZnB is less extractable than ZnA2 in the presence of Zn(II) the dominant extracted species is EuA3ZnB, because EuA3ZnB is stable. From all of the constants determined, such as the extraction constants and the stability constants, it was estimated that the binuclear complex can be prepared when Eu(III) is extracted with Hpta and H2(salchn) from an aqueous solution containing a sufficient amount of Zn(II) at a high pH ; e.g., at pH 5. The complex, ZnA2H2B, gives a weak fluorescence at around 470 nm, and ZnB shows blue fluorescence at 450 nm. When solutions of EuA3 and ZnB were mixed, the blue fluorescence disappeared, and the red fluorescence at 612 nm was remarkably sensitized. When the fluorescence spectrum of the mixed solution dissolved, synthesized EuA3 and ZnB were compared with that of the CHCl3 extracted EuA3ZnB at a similar composition and concentration of Eu(III) and Zn(II), the spectra were similar to each other.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 57 (8), 585-591, 2008

    The Japan Society for Analytical Chemistry

Citations (2)*help

See more

References(14)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top