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http://hdl.handle.net/10773/20352
Title: | Iodide Recognition and Sensing in Water by a Halogen-Bonding Ruthenium(II)-Based Rotaxane |
Author: | Langton, Matthew J. Marques, Igor Robinson, Sean W. Felix, Vitor Beer, Paul D. |
Keywords: | ANION RECOGNITION AQUEOUS-MEDIA SUPRAMOLECULAR CHEMISTRY TRANSITION-METAL HIGH-AFFINITY HOST SYSTEM RECEPTOR FLUORESCENT BINDING CHLORIDE |
Issue Date: | 2016 |
Publisher: | WILEY-V C H VERLAG GMBH |
Abstract: | The synthesis and anion-recognition properties of the first halogen-bonding rotaxane host to sense anions in water is described. The rotaxane features a halogen-bonding axle component, which is stoppered with water-solubilizing permethylated beta-cyclodextrin motifs, and a luminescent tris(bipyridine) ruthenium (II)-based macrocycle component. H-1 NMR anion-binding titrations in D2O reveal the halogen-bonding rotaxane to bind iodide with high affinity and with selectively over the smaller halide anions and sulfate. The binding affinity trend was explained through molecular dynamics simulations and free-energy calculations. Photo-physical investigations demonstrate the ability of the interlocked halogen-bonding host to sense iodide in water, through enhancement of the macrocycle component's Ru-II metal-ligand charge transfer (MLCT) emission. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/20352 |
DOI: | 10.1002/chem.201504018 |
ISSN: | 0947-6539 |
Publisher Version: | 10.1002/chem.201504018 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Iodide Recognition and Sensing in Water by a Halogen-Bonding Ruthenium(II)-Based Rotaxane_10.1002chem.201504018.pdf | 3.04 MB | Adobe PDF |
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