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- Title
An Optically Active Polymer for Broad-Spectrum Enantiomeric Recognition of Chiral Acids.
- Authors
Yan, Jijun; Kang, Chuanqing; Bian, Zheng; Ma, Xiaoye; Jin, Rizhe; Du, Zhijun; Gao, Lianxun
- Abstract
Recognition of enantiomers of chiral acids by anion-π or lone pair-π interactions has not yet been investigated but is a significant and attractive challenge. This study reports an optically active polymer-based supramolecular system with capabilities of discriminating enantiomers of various chiral acids. The polymer featuring alternate π-acidic naphthalenediimides (NDIs) and methyl l-phenylalaninates in the backbone exhibits an unprecedented slow self-assembly process that is susceptible to perturbation by various chiral acids. Thus, the combination of anion-π or lone pair-π interactions and sensitivity of the polymeric self-assembly process to external chiral species endows the system with recognition capabilities. This is the first time that anion-π or lone pair-π interactions have been applied in the recognition of enantiomers of various chiral acids with a single system. The results shed light on new strategies for material design by integrating π-acidic aromatic systems and chiral building blocks to afford relevant advanced functions.
- Subjects
POLYMERS; CHIRALITY; NAPHTHALENE; SUPRAMOLECULAR chemistry; CHEMICAL species
- Publication
Chemistry - A European Journal, 2017, Vol 23, Issue 24, p5824
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201700617