From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers
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Title: | From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers |
Author: | Freire Iribarne, Félix Manuel Cobos Cabrera, Scarlet Katherine Rodríguez Riego, Rafael Quiñoá Cabana, Emilio Riguera Vega, Ricardo |
Affiliation: | Universidade de Santiago de Compostela. Centro de Investigación en Química Biolóxica e Materiais Moleculares Universidade de Santiago de Compostela. Departamento de Química Orgánica |
Subject: | Chiral Communication | Poly(phenylacetylene) | Sergeants and Soldiers | Chiral Coalition | Chiral Conflict | |
Date of Issue: | 2020 |
Publisher: | Wiley |
Citation: | Freire, F., Cobos, K., Rodríguez, R., Quiñoá, E. and Riguera, R. (2020), From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers. Angew. Chem. Int. Ed.. Accepted Author Manuscript. doi:10.1002/anie.202009215 |
Abstract: | Different communication mechanisms can be switched within a copolymer by acting on the conformational composition of the components and their chirality. Thus, a Sergeant and Soldiers effect is produced in two diastereomeric copolymer series —poly[( S )‐ 1 r ‐ co ‐( S )‐ 2 ( 1‐r ) ] and poly[( R )‐ 1 r ‐ co ‐( S )‐ 2 ( 1‐r ) ]— due to the presence in chloroform of a preferred conformation in ( S )‐ 2 , and a conformational equilibrium in 1 , where a P helix is induced independently of the absolute configuration of the Soldier. In THF, the presence of a conformational equilibrium at the pendants of the two components produces a reciprocal chiral enhancement effect by copolymerization of the two monomers, while in DMF, a third chiral to chiral communication switch is produced due to the presence of a single conformer at the pendant group of the two components. In such case, a Chiral Conflict or Chiral Accord effect is produced depending if the two components induce the same or the opposite helical sense |
Description: | This is the peer reviewed version of the following article: Freire, F., Cobos, K., Rodríguez, R., Quiñoá, E. and Riguera, R. (2020), From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers. Angew. Chem. Int. Ed.. Accepted Author Manuscript. doi:10.1002/anie.202009215, which has been published in final form at https://doi.org/10.1002/anie.202009215. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions |
Publisher version: | https://doi.org/10.1002/anie.202009215 |
URI: | http://hdl.handle.net/10347/23376 |
DOI: | 10.1002/anie.202009215 |
ISSN: | 1433-7851 |
E-ISSN: | 1521-3773 |
Rights: | © 2020 Wiley‐VCH GmbH. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archiving |
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