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A new Hg(2+)-selective chromoionophore based on calix[4]arenediazacrown ether
Chemical Communications (Cambridge, England)
|September 21, 2002
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.