Inclusion [2]complexes based on a pillar[5]arene with mono(ethylene oxide) substituents and vinylogous viologens†
Abstract
Host–guest complexation between a pillar[5]arene with mono(ethylene oxide) substituents and vinylogous viologens was studied. It was found that the pillar[5]arene formed [2]pseudorotaxanes with these vinylogous viologens in acetonitrile with association constants up to (4.7 ± 0.3) × 104 M−1.