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A New Motif for the Self-Assembly of [2]Pseudorotaxanes; 1,2-Bis(pyridinium)ethane Axles and [24]Crown-8 Ether Wheels
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1998
Year
Materials ScienceEngineeringHeterocyclic24-Membered Crown EthersSelf-assemblyMultiple Intramolecular InteractionsOrganic ChemistryEthane AxlesFirst Successful SythesisOrganometallic CatalysisCoordination PolymerChemistryHeterocycle ChemistryMain Group ChemistryNew MotifSynthetic ChemistryBiomolecular Engineering
Multiple intramolecular interactions help to stabilize the novel [2]pseudorotaxanes formed from 1,2-bis(pyridinium)ethane dications (which act as axles) and 24-membered crown ethers (which act as wheels; see structure). This is the first successful sythesis of [2]pseudorotaxanes with [24]crown-8 as the macrocycle.