Darren W Johnson, Liam C Palmer, Fraser Hof, Peter M Iovine, Julius Rebek
Index: Chem. Commun. (Camb.) (19) , 2228-9, (2002)
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A series of substituted glycoluril molecules exhibits a substantial twist of the fused five-membered rings and assembles exclusively chiral hydrogen-bonded ribbons in the solid-state.