title: A new Hg(2+)-selective chromoionophore based on calix[4]arenediazacrown ether.
abstract: A new azophenol type chromogenic ionophore based on the p-tert-butylcalix[4]arenediazacrown ether was prepared: the ionophore exhibited a pronouncedly selective chromogenic behaviour toward Hg2+ ions among the surveyed guests of alkali, alkaline earth, transition and heavy metal ions in liquid-liquid extraction experiments.
authors.affiliation: Department of Chemistry, Chung-Ang University, Seoul 156-756, Korea.
authors.forename: M J
authors.initials: MJ
authors.lastname: Choi
authors.forename: M Y
authors.initials: MY
authors.lastname: Kim
authors.forename: S K
authors.initials: SK
authors.lastname: Chang