Host–guest complexation between 1,4-dipropoxypillar[5]arene and imidazolium-based ionic liquids

Abstract

A series of imidazolium-based ionic liquids with different counterions and alkyl chains were introduced to systematically investigate the host–guest complexation with pillar[5]arene. It was demonstrated that pillar[5]arene presented tunable binding ability with different imidazolium-based ionic liquids in chloroform. Both the counterions and the alkyl chains on the guests played important roles in the host–guest association process.