Rational Design of Cesium-Selective Ionophores: Dihydrocalix[4]arene Crown-6 Ethers
作者:Richard A. Sachleben、Jeffrey C. Bryan、Nancy L. Engle、Tamara J. Haverlock、Benjamin P. Hay、Agathe Urvoas、Bruce A. Moyer
DOI:10.1002/ejoc.200300002
日期:2003.12
performed on calix[4]arene crown-6 ethers predict that the 1,3-dihydro derivatives will exhibit greater complementarity for potassium and cesium ions than the parent 1,3-bis(alkyloxy) calixcrowns. The X-ray crystal structures of 1,3-alt-bis(octyloxy)calix[4]arene benzocrown-6 ether, dihydrocalix[4]arene benzocrown-6 ether, and the cesium nitrate complex of dihydrocalix[4]arene benzocrown-6 ether were determined
对杯[4]芳烃冠-6 醚进行的分子力学计算预测,与母体 1,3-双(烷氧基)杯冠相比,1,3-二氢衍生物对钾离子和铯离子的互补性更强。1,3-alt-双(辛氧基)杯[4]芳烃苯并冠-6醚、二氢杯[4]芳烃苯并冠-6醚和二氢杯[4]芳烃苯并冠-6醚的硝酸铯络合物的X射线晶体结构-测定了6个乙醚。铯络合物的结构与分子力学预测的结构非常一致。二氢杯[4]芳烃冠6醚在碱金属盐的萃取中表现出增强的铯选择性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)