Neutral Diamide Ionophores - Phenylenedioxydiacetamides

Article abstract of DOI:10.1007/BF00814343

The preparation of a series of neutral ligands containing ether and amide groups is described.These ligands as well as related ones bearing other diamide groups are shown to selectively chelate Group IIA cations by picrate extraction from water to methylene dichloride.This result was also confirmed by atomic absorption measurement.The changes in UV absorption of aromatic rings and amide groups in the ligands upon titration with metal salts in methanol allow the estimation of the ordering of cation binding. - Keywords: Acyclic ionophores; Neutral ionophores; Phenylenedioxydiacetamide, complexation studies