Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 27, 2014
Previous Article Next Article

Halide selective anion recognition by an amide-triazolium axle containing [2]rotaxane

Author affiliations

Abstract

A new rotaxane containing the 3-amido-phenyl-triazolium group incorporated into the interlocked structure's axle component has been prepared by a chloride anion templated clipping strategy. Proton NMR titration experiments reveal that the interlocked host displays a high degree of halide anion recognition in competitive 1 : 1 CDCl3–CD3OD solvent mixture. Chloride and bromide anions are bound strongly and selectively, with negligible complexation of the larger, more basic oxoanions, acetate and dihydrogen phosphate being observed. Density functional theory calculations on the related axle motifs 3-amido-phenyl-triazolium, pyridinium bis-triazole and pyridinium bis-amide were performed, and indicate that the new rotaxane axle motif displays much weaker oxoanion binding than the pyridinium based systems.

Graphical abstract: Halide selective anion recognition by an amide-triazolium axle containing [2]rotaxane

Back to tab navigation

Supplementary files

Article information


Submitted
17 Apr 2014
Accepted
15 May 2014
First published
30 May 2014

Org. Biomol. Chem., 2014,12, 4924-4931
Article type
Paper
Author version available

Halide selective anion recognition by an amide-triazolium axle containing [2]rotaxane

N. G. White, A. R. Colaço, I. Marques, V. Félix and P. D. Beer, Org. Biomol. Chem., 2014, 12, 4924
DOI: 10.1039/C4OB00801D

Social activity

Search articles by author

Spotlight

Advertisements