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dc.contributor.authorGUNNLAUGSSON, THORFINNURen
dc.contributor.authorELMES, ROBERTen
dc.date.accessioned2010-07-12T15:00:45Z
dc.date.available2010-07-12T15:00:45Z
dc.date.issued2010en
dc.date.submitted2010en
dc.identifier.citationRobert B.P. Elmes and Thorfinnur Gunnlaugsson, Luminescence anion sensing via modulation of MLCT emission from a naphthalimide-Ru(II)-polypyridyl complex, Tetrahedron Letters, 51, 31, 2010, 4082-4087en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/40249
dc.descriptionPUBLISHEDen
dc.description.abstractThe selective sensing of fluoride (F?; an important breakdown product of some chemical warfare agents such as sarin) was achieved by observing quenching in the Metal to Ligand Charge Transfer (MLCT) emission of the 1,8-naphthalimide ruthenium conjugate Ru-Nap-NH2, which occurs at long wavelengths in CH3CN, using steady state fluorescence spectroscopy. The F? recognition was also visible to the naked eye, with a clear colour change from yellow to red. The sensing mechanism is most likely initially via hydrogen bonding, between the anion and the amine, which at higher concentrations, gives rise to deprotonation of the acidic 4-amino-1,8-naphthalimide moiety. However, counter ion effects may also be contributing to the overall emission changes. Other anions such as acetate, phosphate and chloride also give rise to quenching in the fluorescence emission with only minor changes in the UV-Vis absorption spectra of Ru-Nap-NH2. Moreover, phosphate also gave rise to shifts in the ?max in the emission spectraen
dc.format.extent4082-4087en
dc.language.isoenen
dc.relation.ispartofseriesTetrahedron Lettersen
dc.relation.ispartofseries51en
dc.relation.ispartofseries31en
dc.rightsYen
dc.subjectChemistryen
dc.titleLuminescence anion sensing via modulation of MLCT emission from a naphthalimide-Ru(II)-polypyridyl complexen
dc.typeJournal Articleen
dc.contributor.sponsorIrish Research Council for Science and Engineering Technology (IRCSET)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/gunnlauten
dc.identifier.rssinternalid66916en
dc.subject.TCDThemeNext Generation Medical Devicesen
dc.identifier.rssurihttp://dx.doi.org/10.1016/j.tetlet.2010.05.127en


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