Author/Authors :
Nimse، نويسنده , , Satish Balasaheb and Nguyen، نويسنده , , Van-Thuan and Kim، نويسنده , , Junghoon and Kim، نويسنده , , Hyung-Sup and Song، نويسنده , , Keum-Soo and Eoum، نويسنده , , Woon-Young and Jung، نويسنده , , Chan-Yong and Ta، نويسنده , , Van-Thao and Seelam، نويسنده , , Sudhakara Reddy and Kim، نويسنده , , Taisun H. Hyun، نويسنده ,
Abstract :
We report the new water-soluble aminocalix[4]arene hosts 1 and 2 with deep hydrophobic cavity facilitating hydrophobic mouth and hydrophilic mouth, respectively. The 1H NMR titrations revealed that host 1 shows high selectivity for neutral guests 9 and 10, with log K of 4.2 and 4.6, respectively. The host 2 shows log K of 4.9 for binding with guest 15. Moreover, the binding ability of the host 2 for guest 14 is stronger by a factor of 1000 than that of the host 1.
Keywords :
receptors , Molecular recognition , Host–guest systems , cation–? interactions , Pi-interactions
