Azacrown-attached meta-ethynylpyridine polymer: saccharide recognition regulated by supramolecular device

摘要

Polymeric synthetic host 2, azacrown-attached 2,6-pyridylene ethynylene polymer, was investigated for its saccharide recognition and the additive effect of triethylene tetramine-trifluoroaceric acid; heteroallosteric effects were observed on the basis of CD and UV/Vis analyses, which indicated saccharide-dependent stabilization and destabilization of helical complexes by the formation of pseudopolyrotaxanes.rnHelical biomolecules carry out important functions in nature, and such molecules are regulated in a sophisticated way in their structures and performance by circumstance and chemical species, sometimes showing allosterism.