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Self-assembled helical columnar superstructures with selective homochirality

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Abstract

Electron donor–acceptor (EDA) complexes of triphenylene (TP) based side-chain discotic liquid crystalline polymers doped with chiral acceptors exhibit a remarkable supramolecular polymer effect upon reaching a critical doping amount, complying with the discrete columnar stack (DCS) based modular assembly mechanism. Furthermore, selective left- or right-handed homochirality determined by the enantiomeric nature of chiral dopants has been achieved, with a helical polymer backbone surrounded by chiral supramolecular columns through modular assembly between the chiral dopant and DCS subunits, revealing a strong circular dichroism (CD) activity reminiscent of the fascinating hierarchically assembled superstructure of tobacco mosaic virus (TMV). Such polymeric EDA stoichiometric complexation and generation of single-handedness provides inspiring insight into and guidance for constructing various chiral functional materials via non-covalent interactions in a facile way, and also enhances in-depth understanding of the origin of biological helical structures and chiral basis of life.

Graphical abstract: Self-assembled helical columnar superstructures with selective homochirality

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Publication details

The article was received on 20 Mar 2017, accepted on 30 Apr 2017 and first published on 02 May 2017


Article type: Paper
DOI: 10.1039/C7PY00471K
Citation: Polym. Chem., 2017, Advance Article
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    Self-assembled helical columnar superstructures with selective homochirality

    B. Mu, Q. Li, X. Li, J. Chen, J. Fang and D. Chen, Polym. Chem., 2017, Advance Article , DOI: 10.1039/C7PY00471K

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