Title

Some Considerations in Spectroelectrochemical Evaluation of Homogeneous Electron Transfer Involving Biological Molecules

Document Type

Article

Language

eng

Format of Original

6 p.

Publication Date

5-1975

Publisher

American Chemical Society

Source Publication

Analytical Chemistry

Source ISSN

0003-2700

Original Item ID

doi: 10.1021/ac60356a045

Abstract

Potential-step chronoabsorptometry was used to measure the rate of the second-order homogeneous electron transfer between horse heart cytochrome c and methyl viologen radical. A rate constant of 1.0 X 106 ± 0.3M-1sec-1 was obtained at pH 7.2. Theoretical and experimental considerations affecting the measurement of rate constants are discussed. These include the deconvolution of time-dependent spectra and the influence of concentration and dlffusion coefficient ratios.

Comments

Analytical Chemistry, Vol. 47, No. 6 (May 1975): 885-890. DOI.

Michael D. Ryan was affiliated with University of Arizona at the time of publication.