Author/Authors :
Kim، نويسنده , , Jong Seung and Yang، نويسنده , , Seung Hwan and Rim، نويسنده , , Jeong-Ah and Kim، نويسنده , , Jong Yeol and Vicens، نويسنده , , Jacques and Shinkai، نويسنده , , Seiji، نويسنده ,
Abstract :
Silver ion oscillation through calixtube of 1,3-alternate calix[4]crown-5-azacrown-5 and 1,3-alternate calix[4]-bis-azacrown-5 was investigated by temperature variable 1H NMR experiment. The latter (symmetrical calix-bis-azacrown-5) showed an intramolecular metal ion tunneling through π-basic calixtube while the former did not.