The Analysis of the Electron Transfer Rate from Steady-State Fluorescence Spectroscopy

The feasibility of obtaining the electron transfer rate from steady-state fluorescence spectroscopy was investigated. Polymeric films with a fixed concentration of an electron donor molecule were studied as a function of an electron acceptor concentration. The transfer studied was from tetraphenylpo...

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Bibliographic Details
Published inArchives of biochemistry and biophysics Vol. 344; no. 1; pp. 61 - 66
Main Authors Nakaema, Marcelo K.K., Leite, Vitor B.P., Sanches, Rosemary
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.08.1997
Subjects
Benzoquinones - chemistry
Chemical Phenomena
Chemistry, Physical
electron transfer
Electrons
fluorescence
Mathematics
Models, Chemical
Porphyrins - chemistry
Spectrometry, Fluorescence
Spectrophotometry
steady-state fluorescence
electron transfer
fluorescence
steady-state fluorescence
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Summary:The feasibility of obtaining the electron transfer rate from steady-state fluorescence spectroscopy was investigated. Polymeric films with a fixed concentration of an electron donor molecule were studied as a function of an electron acceptor concentration. The transfer studied was from tetraphenylporphyrin to duroquinone in a polystyrene matrix. The data were analyzed according to Perrin model and the critical radius for electron transfer obtained was 7.1 Å. There was an attempt to obtain the electron transfer rate from the nearest-neighbor and Inokuti–Hirayama models, but the parameters that define the rate could not be unequivocally determined.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0003-9861
1096-0384
DOI:10.1006/abbi.1997.0165