Chiral Supramolecular Polymers Assembled from Conformationally Flexible Amino-Acid-Substituted Biphenyldiimides.

Autor: Markiewicz G; Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, 61-614, Poland.; Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland., Szmulewicz A; Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, 61-614, Poland.; Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland., Majchrzycki Ł; Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, 61-614, Poland., Smulders MMJ; Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, Wageningen, 6708 WE, The Netherlands., Stefankiewicz AR; Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, Poznań, 61-614, Poland.; Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland.
Jazyk: angličtina
Zdroj: Macromolecular rapid communications [Macromol Rapid Commun] 2023 Mar; Vol. 44 (5), pp. e2200767. Date of Electronic Publication: 2022 Nov 24.
DOI: 10.1002/marc.202200767
Abstrakt: Hydrogen-bonded polymers are a class of highly dynamic supramolecular aggregates, whose self-assembly may be tuned by very mild external or internal stimuli. However, the rational design of chiral supramolecules remains challenging especially when flexible components are involved. The combination of the inherent weakness and dynamic nature of the intermolecular bonds that hold together such assemblies with unrestricted molecular motions introduces additional factors which may affect the self-assembly process. In this report, the self-assembly of four amino acid-derived chiral biphenyldiimides into open-chain 1D supramolecular polymers is presented. While the primary driving force, COOH···HOOC hydrogen bonding, is responsible for the polymer growth in all cases, the amino acid side chains play an important role in either stabilizing or destabilizing the assemblies obtained, as deduced from studies of the thermodynamics of the self-assembly process. Furthermore, substantial differences in the structural factors governing the polymerization process between dynamic liquid and static solid are found. This work demonstrates the potential of the rather unexplored class of diimide-based organic dyes in the formation of well-organized chiral supramolecular assemblies with tunable properties.
(© 2022 Wiley-VCH GmbH.)
Databáze: MEDLINE
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