ArticleChemical science2022
Supramolecular interactions between ethylene-bridged oligoureas: nanorings and chains formed by cooperative positive allostery.
Article in Chemical science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- How to Characterize Supramolecular Polymers: A User Guide.ACS polymers Au · 2026Article
- Anion-Dependent Hydrogen-Bond Polarity Switching in Ethylene-bridged Urea Oligomers.Chemistry (Weinheim an der Bergstrasse, Germany) · 2023Article
- Dynamic and Persistent Cyclochirality in Hydrogen-Bonded Derivatives of Medium-Ring Triamines.Journal of the American Chemical Society · 2023Article
- Conformational preference in difluoroacetamide oligomers: probing the potential for foldamers with C-H⋯O hydrogen bonds.Organic & biomolecular chemistry · 2023Article
- Switching imidazole reactivity by dynamic control of tautomer state in an allosteric foldamer.Nature communications · 2023Article
- Chain-Length-Dependent Hydrogen-Bonded Self-Assembly of Terminally Functionalized Discrete Polyketones.Precision chemistry · 2023Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ethylene-bridged oligoureas are dynamic foldamers in which the polarity of a coherent chain of intramolecular hydrogen bonds may be controlled by intra- or intermolecular interactions with hydrogen-bond donors or acceptors. In this paper, we describe the way that supramolecular interactions between ethylene-bridged oligoureas bearing a 3,5-bis(trifluoromethyl)phenylurea (BTMP) terminus leads to higher-order structures both in the crystalline state and in solution. The oligoureas self-assemble by head-to-tail hydrogen bonding interactions to form either supramolecular 'nanorings' with cyclic hydrogen bond chain directionality, or supramolecular helical chains of hydrogen bonds. The self-assembly process features a cascade of cooperative positive allostery, in which each intermolecular hydrogen bond formation at the BTMP terminus switches the native hydrogen bond chain directionality of monomers, favouring further assembly. Monomers with a benzyl urea terminus self-assemble into nanorings, whereas monomers with a
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Registered trials
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