title: Pseudorotaxanes with self-sorted sequence and stereochemical orientation.
abstract: Partner preferences in pseudorotaxane formation were exploited to establish an integrative self-sorting system able to discriminate simultaneously at the sequence and stereochemical level (see picture). It was found that calix[6]arenes were threaded selectively with a preferred orientation onto bisammonium axles, even when the structural differences between the possible building blocks were small and located remote from the binding sites.
authors.affiliation: Dipartimento di Chimica e Biologia and NANO_MATES Research Center, Università di Salerno, Via Giovanni Paolo II n. 132, 84084 Fisciano (Salerno), Italy.
authors.forename: Carmen
authors.initials: C
authors.lastname: Talotta
authors.forename: Carmine
authors.initials: C
authors.lastname: Gaeta
authors.forename: Zhenhui
authors.initials: Z
authors.lastname: Qi
authors.forename: Christoph A
authors.initials: CA
authors.lastname: Schalley
authors.forename: Placido
authors.initials: P
authors.lastname: Neri
mesh_terms: D064751:Ammonium Compounds / Q000737:chemistry; D001665:Binding Sites; D047250:Calixarenes / Q000737:chemistry; D061565:Cycloaddition Reaction; D010636:Phenols / Q000737:chemistry; D043862:Rotaxanes / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D064751:Ammonium Compounds; D010636:Phenols; D043862:Rotaxanes; C476540:calix(6)arene; D047250:Calixarenes
keywords: calixarenes; pseudorotaxanes; self-sorting; sequence isomers; superweak anions