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dc.contributor.authorKerr, E
dc.contributor.authorDoeven, EH
dc.contributor.authorBarbante, GJ
dc.contributor.authorHogan, CF
dc.contributor.authorHayne, DJ
dc.contributor.authorDonnelly, PS
dc.contributor.authorFrancis, PS
dc.date.accessioned2020-12-21T01:09:24Z
dc.date.available2020-12-21T01:09:24Z
dc.date.issued2016-01-01
dc.identifierpii: c6sc01570k
dc.identifier.citationKerr, E., Doeven, E. H., Barbante, G. J., Hogan, C. F., Hayne, D. J., Donnelly, P. S. & Francis, P. S. (2016). New perspectives on the annihilation electrogenerated chemiluminescence of mixed metal complexes in solution. CHEMICAL SCIENCE, 7 (8), pp.5271-5279. https://doi.org/10.1039/c6sc01570k.
dc.identifier.issn2041-6520
dc.identifier.urihttp://hdl.handle.net/11343/256391
dc.description.abstractPreliminary explorations of the annihilation electrogenerated chemiluminescence (ECL) of mixed metal complexes have revealed opportunities to enhance emission intensities and control the relative intensities from multiple luminophores through the applied potentials. However, the mechanisms of these systems are only poorly understood. Herein, we present a comprehensive characterisation of the annihilation ECL of mixtures of tris(2,2'-bipyridine)ruthenium(ii) hexafluorophosphate ([Ru(bpy)3](PF6)2) and fac-tris(2-phenylpyridine)iridium(iii) ([Ir(ppy)3]). This includes a detailed investigation of the change in emission intensity from each luminophore as a function of both the applied electrochemical potentials and the relative concentrations of the two complexes, and a direct comparison with two mixed (Ru/Ir) ECL systems for which emission from only the ruthenium-complex was previously reported. Concomitant emission from both luminophores was observed in all three systems, but only when: (1) the applied potentials were sufficient to generate the intermediates required to form the electronically excited state of both complexes; and (2) the concentration of the iridium complex (relative to the ruthenium complex) was sufficient to overcome quenching processes. Both enhancement and quenching of the ECL of the ruthenium complex was observed, depending on the experimental conditions. The observations were rationalised through several complementary mechanisms, including resonance energy transfer and various energetically favourable electron-transfer pathways.
dc.languageEnglish
dc.publisherROYAL SOC CHEMISTRY
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleNew perspectives on the annihilation electrogenerated chemiluminescence of mixed metal complexes in solution
dc.typeJournal Article
dc.identifier.doi10.1039/c6sc01570k
melbourne.affiliation.departmentSchool of Chemistry
melbourne.source.titleChemical Science
melbourne.source.volume7
melbourne.source.issue8
melbourne.source.pages5271-5279
dc.rights.licenseCC BY
melbourne.elementsid1085386
melbourne.contributor.authorDonnelly, Paul
melbourne.contributor.authorHayne, David
dc.identifier.eissn2041-6539
melbourne.accessrightsOpen Access


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