A new Hg(2+)-selective chromoionophore based on calix[4]arenediazacrown ether.
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.
Choi
M J
MJ
Department of Chemistry, Chung-Ang University, Seoul 156-756, Korea.
Kim
M Y
MY
Chang
S K
SK