Translation of mutarotation into induced circular dichroism signals through helix inversion of host polymers

(Figure Presented) About turn: The preferred helical sense of the complex formed between glucose and the meto-ethynylpyridine polymer in aqueous methanol is inverted by mutarotation (see picture). The strong circular dichroism effects induced by pure α- and β-D-glucose weakened with time because the diastereomer excess decreased through mutarotation. The transition curve of the ellipticity closely reflected that of the anomer ratio.