Selective Self-Assembly and Acid-Base Controlled De-/Rethreading of Pseudorotaxanes Constructed Using Multiple Recognition Motifs - Concepedia

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Selective Self-Assembly and Acid-Base Controlled De-/Rethreading of Pseudorotaxanes Constructed Using Multiple Recognition Motifs

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References

1998

Year

Peter R. Ashton, Roberto Ballardini, Vincenzo Balzani, Matthew C. T. Fyfe, Maria Teresa Gandolfi, M. Victoria Martínez‐Díaz, Marco Morosini, Cesare Schiavo, Kazusato Shibata, J. Fraser Stoddart,

Chemistry - A European Journal

Combinatorial ChemistrySupramolecular AssemblyEngineeringMolecular Self-assemblyOrganic ChemistryChemistryMulticomponent Pseudorotaxane SuperarchitecturesPolymersMacromolecular EngineeringMolecular RecognitionHybrid MaterialsTetracationic FilamentSelective Self-assemblySupramolecular ChemistrySupramolecular PolymerStructural BiologyBiomolecular EngineeringAcid-base Controlled De-/rethreadingNatural SciencesSelf-assemblyMolecular SwitchPh-controlled Supramolecular SwitchesSynthetic Chemistry

Abstract

Multicomponent pseudorotaxane superarchitectures are generated when a tetracationic filament, bearing dialkyl ammonium (NH2+) and 4,4′-bipyridinium (bpym2+) recognition sites, self-assembles selectively with various crown ethers, such as dicyclohexyl[24]crown-8 (Dcy24C8) and 2,3- dinaptho[30]crown-10 (2/3DN30C10) [see figure]. The selective self-processes were utilized for the development of pH-controlled supramolecular switches.