Novel acyclic and cyclic monoazapolythioether derivatives incorporating a substituted hydrazone group were synthesized. The acyclic and the cyclic monoazatetrathioether derivatives exhibited high Ag+ ion selectivity in the extraction with 1,2-dichloroethane. The monoazatetrathioether derivatives gave hypsochromic and bathochromic shifts in the visible absorption spectra when extracted Ag+ ion from the aqueous phase of varying acidities into the organic phase.
ionizable hydrazone group were synthesized and complex formation equilibria of the compounds with alkali metal ions in solventextraction were evaluated spectrophotometrically. Formation of 2:2 complexes of the crownethers with metal ions was observed using chloroform as an extractionsolvent.