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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
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.
0020-1693
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
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, 236-242. (doi:10.1016/j.ica.2011.10.026).

Record type: Article

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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More information

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
ORCID for Jonathan A. Kitchen: ORCID iD orcid.org/0000-0002-7139-5666

Catalogue record

Date deposited: 13 May 2013 11:27
Last modified: 16 Jul 2019 21:34

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