Metal ion complexation by ionic crown ethers. Progress report, April 1, 1983-December 31, 1984

Technical Report · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6754418

Bartsch, R A

During the fourth year of this project, 11 new crown ethers with pendant carboxylic acid groups and 14 novel acyclic polyether dicarboxylic acids were prepared. Viable synthetic routes to 9 unique hydroxymethyl-substituted, small-ring and large-ring crown ethers were also developed. Complexation of alkali metal and alkaline earth cations by ionizable crown ethers and of alkaline earth cations by acyclic polyether dicarboxylic acids has been assessed by the techniques of competitve solvent extraction and competitive, coupled transport across liquid surfactant membranes. In addition, the selectivity and efficiency of alkali metal complexation by a series of non-ionizable benzyloxymethyl-substituted crown ethers was determined with a picrate extraction technique. Synthesis of a novel cyclic tetraphosphate ligand for uranium is also in progress.

• Research Organization: Texas Tech Univ., Lubbock (USA)
• DOE Contract Number: AS05-80ER10604
• OSTI ID: 6754418
• Report Number(s): DOE/ER/10604-4; ON: DE84013524
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALCOHOLS
ALKALI METAL COMPLEXES
ALKALI METALS
ALKALINE EARTH METAL COMPLEXES
ALKALINE EARTH METALS
CARBOXYLIC ACIDS
COMPLEXES
DICARBOXYLIC ACIDS
ELEMENTS
EXTRACTION
GLYCOLS
HYDROXY COMPOUNDS
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENE GLYCOLS
POLYMERS
RESEARCH PROGRAMS
SEPARATION PROCESSES
SOLVENT EXTRACTION