Synthesis, structural characterisation and luminescent anion sensing studies of a Ru(II)polypyridyl complex featuring an aryl urea derivatised 2,2?-bpy auxiliary ligand
Synthesis, structural characterisation and luminescent anion sensing studies of a Ru(II)polypyridyl complex featuring an aryl urea derivatised 2,2?-bpy auxiliary ligand
The inclusion of a urea functionality into the coordination sphere of a Ru(II)-polypyridyl complex (Ru·L1) resulted in a system that can function as an effective long wavelength emissive fluorescent anion sensor. The MLCT emission of Ru·L1 is sensitive to the binding of acetate, phosphate and pyrophosphate but not fluoride in organic solvent. In addition, Ru·L1 can distinguish between phosphate and pyrophosphate with an emission increase upon binding of H2PO4- (“turn on” sensor) and an emission decrease upon binding of HP2O73- (“turn off” sensor), which occurs via hydrogen bonding to the urea receptor moiety as demonstrated by carrying out NMR titrations as well as by employing [Ru(II)bpy3](PF6-)2 as a model compound that lacks the anion receptor moiety.
236-242
Kitchen, Jonathan A.
3999f5cb-d53e-4c51-b750-627bd2a1b9b6
Boyle, Elaine M.
0a18aac0-3ba2-4463-a07c-f5957ed4ceb7
Gunnlaugsson, Thorfinnur
bbfcaaa6-2aca-47c9-9b7b-954442218f50
15 February 2012
Kitchen, Jonathan A.
3999f5cb-d53e-4c51-b750-627bd2a1b9b6
Boyle, Elaine M.
0a18aac0-3ba2-4463-a07c-f5957ed4ceb7
Gunnlaugsson, Thorfinnur
bbfcaaa6-2aca-47c9-9b7b-954442218f50
Kitchen, Jonathan A., Boyle, Elaine M. and Gunnlaugsson, Thorfinnur
(2012)
Synthesis, structural characterisation and luminescent anion sensing studies of a Ru(II)polypyridyl complex featuring an aryl urea derivatised 2,2?-bpy auxiliary ligand.
Inorganica Chimica Acta, 381, .
(doi:10.1016/j.ica.2011.10.026).
Abstract
The inclusion of a urea functionality into the coordination sphere of a Ru(II)-polypyridyl complex (Ru·L1) resulted in a system that can function as an effective long wavelength emissive fluorescent anion sensor. The MLCT emission of Ru·L1 is sensitive to the binding of acetate, phosphate and pyrophosphate but not fluoride in organic solvent. In addition, Ru·L1 can distinguish between phosphate and pyrophosphate with an emission increase upon binding of H2PO4- (“turn on” sensor) and an emission decrease upon binding of HP2O73- (“turn off” sensor), which occurs via hydrogen bonding to the urea receptor moiety as demonstrated by carrying out NMR titrations as well as by employing [Ru(II)bpy3](PF6-)2 as a model compound that lacks the anion receptor moiety.
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Published date: 15 February 2012
Organisations:
Organic Chemistry: Synthesis, Catalysis and Flow, Chemistry, Faculty of Natural and Environmental Sciences
Identifiers
Local EPrints ID: 352390
URI: http://eprints.soton.ac.uk/id/eprint/352390
ISSN: 0020-1693
PURE UUID: 167bfcc8-2130-4851-a3ad-6a628df53ba4
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Date deposited: 13 May 2013 11:27
Last modified: 14 Mar 2024 13:51
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Contributors
Author:
Jonathan A. Kitchen
Author:
Elaine M. Boyle
Author:
Thorfinnur Gunnlaugsson
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