Sr2+Ion Selective p-tert-Butylthiacalix[4]arene Bearing Two Distal Amide Units

2008 Bulletin of the Korean Chemical Society (Print)  
A new thiacalix [4] arene diamide (TCAm) has been prepared and its electrochemical property and complexation 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.
more » ... hose of calix[4]arene.
doi:10.5012/bkcs.2008.29.3.620 fatcat:wjerhzbwprgnpf72jg5o4olkge