Assembly and Chiral Memory Effects of Dynamic Macroscopic Supramolecular Helices

Tianyu Yuan; Zhimin Sun; Anthony U Mu; Minxiang Zeng; Alexander J Kalin; Zhengdong Cheng; Mark A Olson; Lei Fang

doi:10.1002/chem.201803005

Assembly and Chiral Memory Effects of Dynamic Macroscopic Supramolecular Helices

Chemistry. 2018 Nov 7;24(62):16553-16557. doi: 10.1002/chem.201803005. Epub 2018 Sep 10.

Authors

Tianyu Yuan^{1

2

3}, Zhimin Sun¹, Anthony U Mu², Minxiang Zeng⁴, Alexander J Kalin², Zhengdong Cheng⁴, Mark A Olson¹, Lei Fang^{2

3}

Affiliations

¹ Health Science Platform, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China.
² Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas, 77843, USA.
³ Department of Materials Science and Engineering, Texas A&M University, 3003 TAMU, College Station, Texas, 77843, USA.
⁴ Artie McFerrin Department of Chemical Engineering, Texas A&M University, 100 Spence Street, College Station, Texas, 77843, USA.

PMID: 30089198
DOI: 10.1002/chem.201803005

Abstract

Macroscopic enantiomerically pure helical supramolecular fibers are bottom-up assembled in aqueous media from a chiral π-electron donor template and an achiral π-electron acceptor. The helices can be assembled to the sub-millimeter scale with controlled handedness. These dynamic supramolecular architectures allow for a quantitative exchange of the chiral donor template with achiral analogues. During this process, a chiral memory effect was observed, affording enantiomerically pure helices composed entirely of achiral components.

Keywords: chiral memory; donor-acceptor systems; helical structures; self-assembly; supramolecular chemistry.

Abstract

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