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Control of excitation and quenching in multi-colour electrogenerated chemiluminescence systems through choice of co-reactant

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dc.contributor.authorBarbante, G.J.
dc.contributor.authorKebede, N.
dc.contributor.authorHindson, C.M.
dc.contributor.authorDoeven, E.H.
dc.contributor.authorZammit, E.M.
dc.contributor.authorHanson, G.R.
dc.contributor.authorHogan, C.F.
dc.contributor.authorFrancis, P.S.
dc.date.issued2014
dc.description.abstractWe demonstrate a new approach to manipulate the selective emission in mixed electrogenerated chemiluminescence (ECL) systems, where subtle changes in co-reactant properties are exploited to control the relative electron-transfer processes of excitation and quenching. Two closely related tertiary-amine co-reactants, tri-n-propylamine and N,N-diisopropylethylamine, generate remarkably different emission profiles: one provides distinct green and red ECL from [Ir(ppy)3] (ppy=2-phenylpyridinato-C2,N) and a [Ru(bpy)3](2+) (bpy=2,2'-bipyridine) derivative at different applied potentials, whereas the other generates both emissions simultaneously across a wide potential range. These phenomena can be rationalized through the relative exergonicities of electron-transfer quenching of the excited states, in conjunction with the change in concentration of the quenchers over the applied potential range.
dc.identifier.citationChemistry - A European Journal, 2014; 20(43):14026-14031
dc.identifier.doi10.1002/chem.201403767
dc.identifier.issn0947-6539
dc.identifier.issn1521-3765
dc.identifier.urihttps://hdl.handle.net/11541.2/122714
dc.language.isoen
dc.publisherWiley-VCH Verlag GmbH
dc.relation.fundingARC FT100100646
dc.relation.fundingARC DP1094179
dc.rightsCopyright 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
dc.source.urihttp://dx.doi.org/10.1002/chem.201403767
dc.subjectco-reactants
dc.subjectelectrogenerated chemiluminescence
dc.subjectelectron transfer
dc.subjectiridium
dc.subjectruthenium
dc.titleControl of excitation and quenching in multi-colour electrogenerated chemiluminescence systems through choice of co-reactant
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9916103001201831

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