Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/20532
Título: | Halide selective anion recognition by an amide-triazolium axle containing [2]rotaxane |
Autor: | White, Nicholas G. Colaco, Ana R. Marques, Igor Felix, Vitor Beer, Paul D. |
Palavras-chave: | SURFACE-ELECTROSTATIC POTENTIALS MACROCYCLIC RECEPTOR CHLORIDE BINDING DONOR GROUPS ROTAXANE CH TRIAZOLOPHANES COMPLEXATION PROGRAM SULFATE |
Data: | 2014 |
Editora: | ROYAL SOC CHEMISTRY |
Resumo: | 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. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/20532 |
DOI: | 10.1039/c4ob00801d |
ISSN: | 1477-0520 |
Versão do Editor: | 10.1039/c4ob00801d |
Aparece nas coleções: | CICECO - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Halide selective anion recognition by an amide-triazolium axle containing [2] rotaxane_10.1039c4ob00801d.pdf | 1.52 MB | Adobe PDF |
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