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Issue 61, 2017
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Multipodal dynamic coordination involving cation–π interactions to control the structure of helical polymers

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Abstract

A precise tuning of the four possible states of a helix (P/M helical sense and stretched/compressed helical backbone) is attained by controlling the complexation between Li+ and a poly(phenylacetylene) that bears amide, ester and phenyl ring functionalities at the pendant group. Depending on the MeOH ratio that is present as a cosolvent, different coordination sites are involved in interactions leading to complexes I–III, each one with a characteristic structure (tri-, bi-, and unipodal) and an associated helical state. This dynamic coordination allows the selective modification of the helical sense or the stretching/compression backbone of a helical polymer.

Graphical abstract: Multipodal dynamic coordination involving cation–π interactions to control the structure of helical polymers

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Publication details

The article was received on 31 May 2017, accepted on 06 Jul 2017 and first published on 06 Jul 2017


Article type: Communication
DOI: 10.1039/C7CC04220E
Citation: Chem. Commun., 2017,53, 8573-8576
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    Multipodal dynamic coordination involving cation–π interactions to control the structure of helical polymers

    M. Alzubi, S. Arias, I. Louzao, E. Quiñoá, R. Riguera and F. Freire, Chem. Commun., 2017, 53, 8573
    DOI: 10.1039/C7CC04220E

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