Stoichiometry-Controlled Chirality Induced by Co-assembly of Tetraphenylethylene Derivative, γ-CD, and Water-Soluble Pillar[5]arene.

A stoichiometry-controlled chirality induction was successfully achieved through coassemblies of amphiphilic tetraphenylethylene derivative , γ-cyclodextrin (γ-), and water-soluble pillar[5]arene in aqueous solution. Stoichiometric variation of was found to be an effective strategy to induce topological transition between the pseudo[4]rotaxane and the vesicular form. Interestingly, the formation of pseudo[4]rotaxane triggered dual chirality induction from chiral γ- to (negative ICD), and then, to dynamically racemic (positive ICD), whereas both ICD and ICD were silent in the vesicular form.