title: Enhancement of anion recognition exhibited by a halogen-bonding rotaxane host system.
abstract: We report the first use of solution-phase halogen bonding to control and facilitate the assembly of an interlocked structure through the bromide anion-templated formation of a rotaxane based upon an iodotriazolium axle. The incorporation of a halogen atom into the rotaxane host cavity dramatically improves the anion-recognition capabilities of the interlocked receptor, giving unusual iodide selectivity in a competitive aqueous medium.
authors.affiliation: Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom.
authors.forename: Nathan L
authors.initials: NL
authors.lastname: Kilah
authors.forename: Matthew D
authors.initials: MD
authors.lastname: Wise
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Serpell
authors.forename: Amber L
authors.initials: AL
authors.lastname: Thompson
authors.forename: Nicholas G
authors.initials: NG
authors.lastname: White
authors.forename: Kirsten E
authors.initials: KE
authors.lastname: Christensen
authors.forename: Paul D
authors.initials: PD
authors.lastname: Beer
mesh_terms: D000838:Anions / Q000737:chemistry; D001665:Binding Sites; D018360:Crystallography, X-Ray; D006219:Halogens / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D043862:Rotaxanes / Q000138:chemical synthesis* / Q000737:chemistry; D012996:Solutions
chemical_list: D000838:Anions; D006219:Halogens; D043862:Rotaxanes; D012996:Solutions