RT Journal Article
T1 Chiral-to-Chiral Communication in Polymers: A Unique Approach to Control both Helical Sense and Chirality at the Periphery
A1 Cobos Cabrera, Scarlet Katherine
A1 Quiñoá Cabana, Emilio
A1 Riguera Vega, Ricardo
A1 Freire Iribarne, Félix Manuel
AB A novel approach to the classical Sergeants and Soldiers effect, using chiral Sergeants and chiral Soldiers, allows control over both helical and external chirality in helical polymers. In the systems reported here, it is possible to induce the same helical sense (M or P) from either of the two enantiomers of a chiral pendant group [“chiral Soldier”, major component; i.e., (R)- or (S)-1] when it faces a single enantiomer of an appropriate “chiral Sergeant” [minor component; i.e., (S)-2]. For instance, the copolymer series poly[(R)-1r-co-(S)-2(1–r)], poly[(S)-1r-co-(S)-2(1–r)], and poly[(rac)-1r-co-(S)-2(1–r)] adopt the same P helix even though the major component shows the opposite absolute configuration. This chiral-to-chiral communication effect is transmitted by the stabilization of different conformations in each enantiomeric form of the Soldier. As a result, this groundbreaking approximation to the Sergeants and Soldiers effect allows the preparation of a single-handed helix—which depends only on the Sergeant’s configuration—with different chiralities on the helix periphery. Thus, a P helix can be decorated with the R isomer, S isomer, or even a racemic mixture of the chiral Soldier. A change in the absolute configuration of the Sergeant affords the opposite M helix, which can also be decorated with the R isomer, S isomer, or racemic mixture of the chiral Soldier
PB American Chemical Society
SN 0002-7863
YR 2018
FD 2018-08-29
LK http://hdl.handle.net/10347/18884
UL http://hdl.handle.net/10347/18884
LA eng
NO Cobos, K., Quiñoá, E., Riguera, R., & Freire, F. (2018). Chiral-to-Chiral Communication in Polymers: A Unique Approach To Control Both Helical Sense and Chirality at the Periphery. Journal Of The American Chemical Society, 140(38), 12239-12246. doi: 10.1021/jacs.8b07782
NO This is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of the American Chemical Society, Copyright © 2018 American Chemical Society after peer review and technical edityng by the publisher. To access the final edited and published work see: https://pubs.acs.org/doi/10.1021/jacs.8b07782
NO Financial support from MINECO (CTQ2014-61470-EXP,CTQ2015-70519-P), Xunta de Galicia (GRC2014/040, Centrosingular de investigación de Galicia accreditation 2016-2019,ED431G/09) and the European Regional Development Fund(ERDF) is gratefully acknowledged
DS Minerva
RD 28 abr 2026