2024-03-28T10:14:55Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02001361
2023-01-16T05:12:01Z
320:321:322
Racemic Monomer‐Based One‐Handed Helical Polymer Recognizes Enantiomers through Auto‐Evolution of Its Helical Handedness Excess
Ikai, Tomoyuki
Kurake, Tomoyuki
Okuda, Shogo
Maeda, Katsuhiro
Yashima, Eiji
A racemic monomer-based optically inactive polyacetylene folds into a one-handed helix assisted by a nonracemic alcohol, which can separate various enantiomers as a chiral stationary phase in chromatography. The chiral-resolving power is virtually identical to that of the enantiopure monomer-based one-handed helical polyacetylene. Because of its unique static memory of the induced helicity, the original racemic polyacetylene expresses an auto-evolution of its helical handedness over time, and at the same time, chirality of the nonracemic alcohol is discriminated accompanied by successive enhancement of its optical purity enantioselectively adsorbed on the helical polyacetylene owing to the chiral filter effect as directly monitored by NMR, which contributes to further enhancing the helix-sense-excess of the helical polyacetylene.
journal article
Wiley
2021-02-23
application/pdf
Angewandte Chemie International Edition
9
60
4625
4632
1433-7851
https://nagoya.repo.nii.ac.jp/record/2001361/files/Yashima_manuscript.pdf
eng
https://doi.org/10.1002/anie.202014946
"This is the peer reviewed version of the following article: [T. Ikai, T. Kurake, S. Okuda, K. Maeda, E. Yashima, Angew. Chem. Int. Ed. 2021, 60, 4625.], which has been published in final form at [https://doi.org/10.1002/anie.202014946]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited."