ION-BINDING PROPERTIES OF N,N′-DISUBSTITUTED DIAZA-CROWN ETHERS

Abstract
Derivatives of diaza-18-crown-6 and diaza-15-crown-5 were synthesized and their complexation properties were examined by solvent extraction and liquid membrane transport of various cations. N,N′-Bis(aminoalkyl) derivatives were particular in exhibiting unusually high but non-selective ion-binding efficiency toward various cations.