Enhancement of Anion Recognition Exhibited by a Halogen-Bonding Rotaxane Host System

Enhancement of Anion Recognition Exhibited by a Halogen-Bonding Rotaxane Host System

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 i...

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Veröffentlicht in:Journal of the American Chemical Society 2010-09, Vol.132 (34), p.11893-11895
Hauptverfasser: Kilah, Nathan L, Wise, Matthew D, Serpell, Christopher J, Thompson, Amber L, White, Nicholas G, Christensen, Kirsten E, Beer, Paul D
Format: Artikel
Sprache:eng
Schlagworte:
Anions - chemistry
Binding Sites
Crystallography, X-Ray
Halogens - chemistry
Models, Molecular
Molecular Structure
Rotaxanes - chemical synthesis
Rotaxanes - chemistry
Solutions
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Zusammenfassung: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.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja105263q