Bipyridinium radical cation dimerization-driven polymeric pleated foldamers and a homoduplex that undergo ion-tuned interconversion
Literature Information
Yun-Chang Zhang, Dan-Wei Zhang, Hui Wang, Yaming Zhou, Zhan-Ting Li
Four oligo(ethylene glycol)-linked bipyridinium (BIPY2+) polymers have been prepared via forming hydrazone bonds. Reducing the BIPY2+ units into a radical cation (BIPY˙+) with zinc induces the polymers to fold into pleated states or form a duplex via BIPY˙+ dimerization. The duplex and foldamer can convert into each other by alternately adding NH4+ and NEt3.
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