Metal ion complexation by acyclic polyethers with lipophilic amide, thioamide, and amine end groups

Jong Seung Kim, Moon Hwan Cho, Jae Hoon Cho, Joung Hae Lee, Richard A. Bartsch, Yong Ill Lee, Inn Hoe Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A series of acyclic polyethers with lipophilic amide, thioamide, and amine end groups was synthesized. Metal ion transport across bulk liquid membranes and measurement of thermodynamic parameters for ligand-metal ion complexation by titration calorimetry show strong selectivity for complexation of lead ion over other metal ion species for the diamide ligand. Lead ion complexation by the acyclic polyether diamide involves the amide oxygens md silver ion coordination by a dithioamide analog involves the thioamide sulfurs. With a proper length of the ethereal linkage, the ligand wraps around the metal ion in a pseudocyclic fashion.

Original languageEnglish
Pages (from-to)99-105
Number of pages7
JournalTalanta
Volume51
Issue number1
DOIs
Publication statusPublished - 2000 Jan 24
Externally publishedYes

Keywords

  • Membrane transport
  • Metal ion complexation
  • Metal ion separation
  • Thermodynamic parameters

ASJC Scopus subject areas

  • Analytical Chemistry

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  • Cite this

    Seung Kim, J., Hwan Cho, M., Hoon Cho, J., Hae Lee, J., Bartsch, R. A., Ill Lee, Y., & Hoe Kim, I. (2000). Metal ion complexation by acyclic polyethers with lipophilic amide, thioamide, and amine end groups. Talanta, 51(1), 99-105. https://doi.org/10.1016/S0039-9140(99)00253-2