Calix[4]pyrrole-Based Heteroditopic Ion-Pair Receptor That Displays Anion-Modulated, Cation-Binding Behavior
作者:In-Won Park、Jaeduk Yoo、Suman Adhikari、Jung Su Park、Jonathan L. Sessler、Chang-Hee Lee
DOI:10.1002/chem.201202777
日期:2012.11.19
contrast to what was seen with Li+, Na+, and K+, treating complex [1⋅F]− with the Cs+ ion gave rise to a stable, receptor‐bound ion‐pair complex [Cs⋅1⋅F] that contains the Cs+ ion complexed within the cup‐like cavity of the calix[4]pyrrole, which in turn was stabilized in its cone conformation. Different complexation behavior was observed in the case of the chloride complex [1⋅Cl]−. In this case, no appreciable