Lyotropic liquid crystallinity in mixed-tautomer Schiff-base macrocycles†
Abstract
Schiff-base macrocycles that combine keto-enamine and enol-imine tautomers within the same ring were synthesized and characterized. These new macrocycles form host–guest complexes with organic cations and unexpectedly form a lyotropic liquid crystal in organic solvents such as chloroform and toluene.