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. 2010 Sep 1;132(34):11893-5.
doi: 10.1021/ja105263q.

Enhancement of anion recognition exhibited by a halogen-bonding rotaxane host system

Nathan L Kilah  1 , Matthew D Wise, Christopher J Serpell, Amber L Thompson, Nicholas G White, Kirsten E Christensen, Paul D Beer
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Enhancement of anion recognition exhibited by a halogen-bonding rotaxane host system

Nathan L Kilah et al. J Am Chem Soc. .

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.

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