Polarographic Studies on Complex Formation of Cryptand(2.2) and a Macrocyclic Polythioetheramine with Alkali or Alkaline-Earth Metal Ions in Acetonitrile.

• HOJO Masashi

  Department of Chemistry, Faculty of Science, Kochi University

• HASEGAWA Hiroshi

  Department of Chemistry, Faculty of Science, Kochi University

• OHNO Takanori

  Department of Chemistry, Faculty of Science, Kochi University

• ARISAWA Souichirou

  Department of Chemistry, Faculty of Science, Kochi University

• CHAYAMA Kenji

  Department of Chemistry, Faculty of Science, Konan University

抄録

The formation constants for 1:1 complexes between Li⁺ or Na⁺ and a monocyclic polyetherdiamine, cryptand[2.2], were evaluated in acetonitrile at 25±0.2°C by three d.c. polarographic analyses: the positive shift in E_1/2 of the anodic (mercury dissolution) wave induced from cryptand[2.2] in the presence of a large excess of LiClO₄ and NaClO₄; the positive shift in E_1/2 of the cathodic wave of the [HgL]²⁺ complex (L=cryptand[2.2]) in the presence of a large excess of alkali metal ions; and the negative shift of the cathodic wave of Li⁺or Na⁺ in the presence of a large excess of cryptand[2.2]. The above three analyses gave complex formation constants that were consistent with each other within experimental error. In a less solvating medium (benzonitrile), stronger interactions were observed between the cations and cryptand[2.2]. The interaction between alkali metal ions and 1, 10-diaza-4, 7, 13, 16-tetrathiacyclooctadecane (ATCO) was very small, even in benzonitrile. The complex formation constants of [SrL′]²⁺ and [BaL′]²⁺ (L′=ATCO) in acetonitrile were both ca.10^2.5 by the first two methods mentioned above.

収録刊行物

• Analytical Sciences

  Analytical Sciences 11 (3), 419-424, 1995

  社団法人 日本分析化学会

キーワード

• Cryptand[2.2]
• macrocyclic polythioetheramine
• polarography
• anodic wave
• acetonitrile
• complex formation

詳細情報

• CRID: 1390282679229653760
• NII論文ID: 10002405554
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.11.419
• COI: 1:CAS:528:DyaK2MXmtlSrsbw%3D
• ISSN: 13482246
• ISSN: 09106340
• ISSN: http://id.crossref.org/issn/09106340
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.11.419.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.11.419/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci1985/11/3/11_3_419/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可