Enhanced anion recognition by ammonium [2]catenane functionalisation of a halogen bonding acyclic receptor

Abstract

Ammonium-dibenzo[24]crown-8 [2]catenane functionalisation of a 3,5-bis-iodotriazole-pyridine motif produces a potent halogen bonding (XB) receptor capable of binding anions in aqueous-acetone solvent mixtures of up to 20% water. Exploiting the kinetically...

Bidentate selenium-based chalcogen bond catalyzed cationic polymerization of p-methoxystyrene

“…Although ChB has been discovered for many years, the role of which in solution has been reported mainly in anion recognition, 9 ion transport, 10 and small molecule catalysis, 11 ChB is rarely used in the field of polymer synthesis. There are solely two examples of selenium compounds utilized to catalyze the cationic polymerization of alkenes, but the cation polymerization of electron-rich styrenic monomers (especially p MOS) is uncontrollable.…”