Title

Fluorescence Quenching of Tris(2,2’- bipyridyl)ruthenium(II) in 0.5 M Aqueous Sulfuric Acid by Copper(II) and Iron (III) at Room temperature

Poster Number

45

Format

Poster Presentation

Abstract/Artist Statement

The fluorescence quenching of Tris(2,2’-bipyridyl)ruthenium(II) cation by iron (III) and copper (II) has been studied at room temperature in aqueous 0.5 M sulfuric acid. Under these conditions, the Stern-Volmer constants Ksv are determined to be 734 1/M for iron (III) and 25.8 1/M for copper (II). These are diffusion controlled processes, and the quenching rate constants and the self-exchange rate constants for the cations are analyzed in the context of Marcus theory..

Location

DeRosa University Center, Ballroom B

Start Date

1-5-2010 1:00 PM

End Date

1-5-2010 3:00 PM

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May 1st, 1:00 PM May 1st, 3:00 PM

Fluorescence Quenching of Tris(2,2’- bipyridyl)ruthenium(II) in 0.5 M Aqueous Sulfuric Acid by Copper(II) and Iron (III) at Room temperature

DeRosa University Center, Ballroom B

The fluorescence quenching of Tris(2,2’-bipyridyl)ruthenium(II) cation by iron (III) and copper (II) has been studied at room temperature in aqueous 0.5 M sulfuric acid. Under these conditions, the Stern-Volmer constants Ksv are determined to be 734 1/M for iron (III) and 25.8 1/M for copper (II). These are diffusion controlled processes, and the quenching rate constants and the self-exchange rate constants for the cations are analyzed in the context of Marcus theory..