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

Barbante,GJ, Kebede,N, Hindson,CM, Doeven,EH, Zammit,EM, Hanson,GR, Hogan,CF and Francis,PS 2014, Control of excitation and quenching in multi-colour electrogenerated chemiluminescence systems through choice of co-reactant, Chemistry, vol. 20, no. 43, pp. 14026-14031, doi: 10.1002/chem.201403767.

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Title Control of excitation and quenching in multi-colour electrogenerated chemiluminescence systems through choice of co-reactant
Author(s) Barbante,GJ
Kebede,N
Hindson,CM
Doeven,EHORCID iD for Doeven,EH orcid.org/0000-0003-2677-4269
Zammit,EM
Hanson,GR
Hogan,CF
Francis,PSORCID iD for Francis,PS orcid.org/0000-0003-4165-6922
Journal name Chemistry
Volume number 20
Issue number 43
Start page 14026
End page 14031
Total pages 6
Publisher Wiley
Place of publication London, Eng.
Publication date 2014-10-20
ISSN 1521-3765
Keyword(s) co-reactants
electrogenerated chemiluminescence
electron transfer
iridium
ruthenium
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
INHIBITED RU(BPY)(3)(2+) ELECTROCHEMILUMINESCENCE
ELECTROCHEMICALLY GENERATED CHEMILUMINESCENCE
VISIBLE-LIGHT PHOTOCATALYSIS
PHOTOREDOX CATALYSIS
IRIDIUM(III) COMPLEXES
SYNTHETIC APPLICATIONS
SELECTIVE EXCITATION
ORGANIC-SYNTHESIS
AMINIUM CATIONS
TERTIARY-AMINES
Summary We 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.
Language eng
DOI 10.1002/chem.201403767
Field of Research 030101 Analytical Spectrometry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID FT100100646
DP1094179
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069418

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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