Sr~(2+)Ion Selective p-tert-Butylthiacalix[4]arene Bearing Two Distal Amide Units

摘要

A new thiacalix[4]arene diamide(TCAm)has been prepared and its electrochemical property and complexa-tion behavior toward various metal ions have been investigated by voltammetry.p-tert-Butylthiacalix[4]arene diamide(TCAm)exhibited selectivity toward Sr~(2+)ion over alkali,alkaline earth and transition metal ions while conventional calix[4]arene diamides showed selective binding property with Ca~(2+)ion.This is probably due to the bigger size of thiacalix[4]arene than those of calix[4]arene.