RT Journal Article
T1 Full Control of the Chiral Overpass Effect in Helical Polymers: P/M Screw Sense Induction by Remote Chiral Centers After Bypassing the First Chiral Residue
A1 Rodríguez Riego, Rafael
A1 Rivadulla Cendal, Elena
A1 Fernández Míguez, Manuel
A1 Fernández Rodríguez, Berta
A1 Maeda, Katsuhiro
A1 Quiñoá Cabana, Emilio
A1 Freire Iribarne, Félix Manuel
K1 AFM
K1 Chiral Overpass
K1 Chirality
K1 Chiroptical Switches
K1 Helical Polymers
AB In helical polymers, helical sense induction is usually commanded by teleinduction mechanism, where the largest substituent of the chiral residue directly attached to the main chain is the one that commands the helical sense. In this work, different helical structures with different helical senses are induced in a helical polymer [poly-(phenylacetylene)] when the conformational composition of two different dihedral angles of a pendant group with more than two chiral residues is tamed. Thus, while the dihedral angle at chiral residue 1 [(R)- or (S)-alanine], attached to the backbone, produces an extended or bent conformation in the pendant resulting in two scaffolds with different stretching degree, the second dihedral angle at chiral residue 2 [(R)- or (S)-methoxyphenylacetamide] places the substituents of this chiral center in a different spatial orientation, originating opposite helical senses at the polymer that are induced through a total control of the “chiral overpass effect”
PB Wiley
SN 1433-7851
YR 2022
FD 2022
LK http://hdl.handle.net/10347/30714
UL http://hdl.handle.net/10347/30714
LA eng
NO R. Rodríguez, E. Rivadulla-Cendal, M. Fernández-Míguez, B. Fernández, K. Maeda, E. Quiñoá, F. Freire, Angew. Chem. Int. Ed. 2022, 61, e202209953; Angew. Chem. 2022, 134, e202209953
NO Agencia Estatal de Investigación-Grant Number: PID2019-109733GB-I00. Ministerio de Ciencia e Innovación-Grant Numbers: PID2019-107307RB-100, PID2020-117605GB-100. Consellería de Economía, Emprego e Industria, Xunta de Galicia-Grant Number: ED431C 2018/30. Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia-Grant Numbers: ED431C 2021/40, ED431G 2019/03. JSPS KAKENHI-Grant Numbers: 18H05209, 21H04691
DS Minerva
RD 28 abr 2026