‘Click’-BINOL based chiral ionic polymers for highly enantioselective recognition of tryptophan anions†
Abstract
Two novel ‘Click’-BINOL based chiral ionic polymers P-1 and P-2 can exhibit good enantioselective recognition behavior toward (D)-tryptophan anions with ef values up to 6.25 and 7.87, respectively. Interestingly, the fluorescence emission of P-2 shows an obvious red shift, and the solution color change could be clearly observed by the naked eye.