E. Wagner-wysiecka et al., Macrocyclic derivatives of resorcinol and 1,3-dihydroxynaphthalene. New lithium and sodium selective ionizable chromogenic reagents, POL J CHEM, 75(10), 2001, pp. 1457-1463
The synthesis of ionizable chromoionophores, derivatives of resorcinol and
dihydroxynaphthalene has been described. Acid-base properties of these comp
ounds were studied in a mixed, water containing solvent system. Complexatio
n of metal cations was investigated. Selectivity for lithium and sodium ion
s for 18-membered and 21-membered crown ethers, respectively, was found.