Electrochemical Control of the Luminescent Lifetime of Ru(bpy)32+* Incorporated in Nafion Films on Graphite Electrodes

Daniel A. Buttry; Fred C. Anson

doi:10.1021/ja00382a015

Electrochemical Control of the Luminescent Lifetime of Ru(bpy)₃²⁺* Incorporated in Nafion Films on Graphite Electrodes

Daniel A. Buttry, Fred C. Anson

Research output: Contribution to journal › Article › peer-review

147 Scopus citations

Abstract

The formal potential of the Ru(bpy)₃^3+/2+redox couple incorporated in a Nafion film was measured spectroelectrochemically. An electrochemical (Stern-Volmer) method is presented that can be used to determine the rate of quenching of the luminescence of one half of a redox couple by the other half. The method is also shown to give qualitative information about cases in which the quenching is by an independent redox couple. The kinetics of the quenching process yield information on the Nafion film structure. The magnitude of the rate constant for quenching of the Ru(bpy)₃²⁺excited state by Ru(bpy)₃³⁺is used to elucidate the mechanism of production of this excited state in the electrochemiluminescent reaction of Ru(bpy)₃³⁺with oxalate.

Original language	English (US)
Pages (from-to)	4824-4829
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	104
Issue number	18
DOIs	https://doi.org/10.1021/ja00382a015
State	Published - Jan 1 1982
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "Electrochemical Control of the Luminescent Lifetime of Ru(bpy)32+* Incorporated in Nafion Films on Graphite Electrodes",

abstract = "The formal potential of the Ru(bpy)33+/2+redox couple incorporated in a Nafion film was measured spectroelectrochemically. An electrochemical (Stern-Volmer) method is presented that can be used to determine the rate of quenching of the luminescence of one half of a redox couple by the other half. The method is also shown to give qualitative information about cases in which the quenching is by an independent redox couple. The kinetics of the quenching process yield information on the Nafion film structure. The magnitude of the rate constant for quenching of the Ru(bpy)32+excited state by Ru(bpy)33+is used to elucidate the mechanism of production of this excited state in the electrochemiluminescent reaction of Ru(bpy)33+with oxalate.",

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T1 - Electrochemical Control of the Luminescent Lifetime of Ru(bpy)32+* Incorporated in Nafion Films on Graphite Electrodes

AU - Buttry, Daniel A.

AU - Anson, Fred C.

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Y1 - 1982/1/1

N2 - The formal potential of the Ru(bpy)33+/2+redox couple incorporated in a Nafion film was measured spectroelectrochemically. An electrochemical (Stern-Volmer) method is presented that can be used to determine the rate of quenching of the luminescence of one half of a redox couple by the other half. The method is also shown to give qualitative information about cases in which the quenching is by an independent redox couple. The kinetics of the quenching process yield information on the Nafion film structure. The magnitude of the rate constant for quenching of the Ru(bpy)32+excited state by Ru(bpy)33+is used to elucidate the mechanism of production of this excited state in the electrochemiluminescent reaction of Ru(bpy)33+with oxalate.

AB - The formal potential of the Ru(bpy)33+/2+redox couple incorporated in a Nafion film was measured spectroelectrochemically. An electrochemical (Stern-Volmer) method is presented that can be used to determine the rate of quenching of the luminescence of one half of a redox couple by the other half. The method is also shown to give qualitative information about cases in which the quenching is by an independent redox couple. The kinetics of the quenching process yield information on the Nafion film structure. The magnitude of the rate constant for quenching of the Ru(bpy)32+excited state by Ru(bpy)33+is used to elucidate the mechanism of production of this excited state in the electrochemiluminescent reaction of Ru(bpy)33+with oxalate.

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Electrochemical Control of the Luminescent Lifetime of Ru(bpy)₃²⁺* Incorporated in Nafion Films on Graphite Electrodes

Abstract

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