Samenvatting
Homochiral hydrogen-bonded cyclic assemblies are formed in dilute solutions of racemic supramolecular polymers based on the quadruple hydrogen bonding 2-ureido-4[1H]-pyrimidinone unit, as observed by 1H NMR and SEC experiments. Preorganization of the monomers and the combined binding strength of the eight hydrogen bonds result in a very high stability of the cyclic aggregates with pronounced selectivity between homochiral and heterochiral cyclic species, usually only observed in crystalline or liquid crystalline phases.
Originele taal-2 | Engels |
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Pagina's (van-tot) | 6860-6861 |
Aantal pagina's | 1 |
Tijdschrift | Journal of the American Chemical Society |
Volume | 125 |
Nummer van het tijdschrift | 23 |
DOI's | |
Status | Gepubliceerd - 2003 |