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U.S. Department of Energy
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Metal-ion complexation by ionic-crown ethers. Progress report

Technical Report ·
OSTI ID:6596163
During the third year of this DOE-funded project, 15 new crown ether compounds with pendant ionizable groups have been synthesized. Although a majority of these compounds are crown ether carboxylic acids, two crown ether sulfonic acids, a crown ether phosphonic acid, and a crown ether phosphonic acid monoalkyl ester have also been prepared. Complexation of alkali metal and alkaline earth cations by these ionizable crown ethers has been assessed by the techniques of solvent extraction, active transport across bulk liquid membranes, and active transport across liquid surfactant membranes. Effects of systematic structural variation within the ionizable crown ether upon the selectivity and efficiency of competitive metal ion complexation have been probed.
Research Organization:
Texas Tech Univ., Lubbock (USA). Dept. of Chemistry
DOE Contract Number:
AS05-80ER10604
OSTI ID:
6596163
Report Number(s):
DOE/ER/10604-3; ON: DE83004588
Country of Publication:
United States
Language:
English