Author/Authors :
Bongkot Pipoosananakaton، نويسنده , , Bongkot and Sukwattanasinitt، نويسنده , , Mongkol and Jaiboon، نويسنده , , Nongnuj and Chaichit، نويسنده , , Narongsak and Tuntulani، نويسنده , , Thawatchai، نويسنده ,
Abstract :
New azobenzene crown ether p-tert-butylcalix[4]arenes (6 and 7) have been synthesized by reductive coupling reactions between two nitrobenzene groups. Their isomerization and switchable binding properties towards Na+ and K+ were studied by 1H NMR spectroscopy. The results showed that Na+ preferred to bind the cis form of 6 while K+ preferred to bind the trans isomer.
Keywords :
switchable ionophore , Isomerization , azobenzene , Calixarene
