Oligo‐Quinolylene–Vinylene Foldamers

Autor: Jinhua Wang, Victor Maurizot, Ivan Huc, Barbara Wicher
Přispěvatelé: CBMN - Chimie et Biologie des Membranes et des Nanoobjets, Chimie et Biologie des Membranes et des Nanoobjets (CBMN), École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Chemistry (Weinheim an Der Bergstrasse, Germany)
Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2020, ⟨10.1002/chem.202003559⟩
ISSN: 1521-3765
0947-6539
Popis: Quinoline based aromatic amide foldamers are known to adopt stable folded conformations. We have developed a synthetic approach to produce similar oligomers where all amide bonds, or part of them, have been replaced by an isosteric vinylene group. The results of solution and solid state structural studies show that oligomers exclusively containing vinylene linkages are not well folded, and adopt predominantly flat conformations. In contrast, a vinylene segment flanked by helical oligoamides also folds in a helix, albeit with a slightly lower curvature. The presence of vinylene functions also result in an extension of π‐conjugation across the oligomer that may change charge transport properties. Altogether, these results pave the way to foldamers in which both structural control and specific electronic properties may be engineered.
Despite lacking polar elements, vinylene isosteres are compatible with the helical conformations of oligo‐quinolinecarboxamides, paving the way to the modulation of charge transport properties in these systems.
Databáze: OpenAIRE
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