Supramolecular helical systems: helical assemblies of small molecules, foldamers, and polymers with chiral amplification and their functions

E Yashima, N Ousaka, D Taura, K Shimomura… - Chemical …, 2016 - ACS Publications
In this review, we describe the recent advances in supramolecular helical assemblies
formed from chiral and achiral small molecules, oligomers (foldamers), and helical and …

Dissymmetric chiral poly (diphenylacetylene) s: secondary structure elucidation and dynamic luminescence

JJ Tarrío, R Rodríguez, B Fernández… - Angewandte …, 2022 - Wiley Online Library
The secondary structure of a dissymmetric and chiral poly (diphenylacetylene)(PDPA) is
elucidated by combining the data from NMR experiments (regioregular head to tail …

Architecture of chiral poly (phenylacetylene) s: from compressed/highly dynamic to stretched/quasi-static helices

R Rodriguez, E Quinoa, R Riguera… - Journal of the American …, 2016 - ACS Publications
The remarkable consequences in elongation, dynamic character, response to external
stimuli (eg, solvent effects, metal cations), and aggregation observed in helical poly …

A stimuli‐responsive macromolecular gear: interlocking dynamic helical polymers with foldamers

R Rodríguez, E Suárez‐Picado… - Angewandte Chemie …, 2020 - Wiley Online Library
Herein, macromolecular gears composed of helical poly (phenylacetylenes)(PPAs) bearing
short oligopeptides as pendant groups are described, in which the two structural motifs …

Screw sense excess and reversals of helical polymers in solution

F Rey-Tarrío, R Rodríguez, E Quiñoá… - Nature Communications, 2023 - nature.com
The helix reversal is a structural motif found in helical polymers in the solid state, but whose
existence is elusive in solution. Herein, we have shown how the photochemical …

Unraveling mechanisms of chiral induction in double-helical metallopolymers

JL Greenfield, EW Evans, D Di Nuzzo… - Journal of the …, 2018 - ACS Publications
Self-assembled helical polymers hold great promise as new functional materials, where
helical handedness controls useful properties such as circularly polarized light emission or …

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

R Rodríguez, E Rivadulla‐Cendal… - Angewandte …, 2022 - Wiley Online Library
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 …

Poly (phenylacetylene) amines: a general route to water-soluble helical polyamines

E Suárez-Picado, E Quiñoá, R Riguera… - Chemistry of …, 2018 - ACS Publications
Poly (phenylacetylene) s bearing prim-and sec-amine groups are barely known because of
their poisoning activity toward the polymerization catalyst. Herein, we prepare 11 different …

Chiral-to-chiral communication in polymers: a unique approach to control both helical sense and chirality at the periphery

K Cobos, E Quiñoá, R Riguera… - Journal of the American …, 2018 - ACS Publications
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 …

Predicting the helical sense of poly (phenylacetylene) s from their electron circular dichroism spectra

B Fernández, R Rodríguez, A Rizzo… - Angewandte Chemie …, 2018 - Wiley Online Library
The calculated ECD spectrum (time‐dependent density functional theory TD‐DFT) for small
oligomers of polyphenylacetylenes (PPAs) show a very good match with the experimental …