Cooperative supramolecular helical assembly of a pyridinium-tailored methyl glycyrrhetate.

Gao, Yuxia; Hao, Jie; Wu, Jindan; Li, Ying; Lin, Yuan; Hu, Jun; Ju, Yong · Soft Matter · 2016

basic_science · Level V

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Abstract

Taking a natural triterpenoid as the building block, we have regulated a pyridinium-functionalized methyl glycyrrhetate (C4-MGP) into P-type helices in water primarily driven by hydrophobic forces. By analysing their temperature-dependent CD and UV-Vis spectra, these hierarchical chiral assemblies were found to be formed in a cooperative supramolecular polymerization manner.