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

Authors

Michael D. Ryan, Marquette UniversityFollow
George S. Wilson, University of Arizona

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 diffusion 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.

Recommended Citation

Ryan, Michael D. and Wilson, George S., "Some Considerations in Spectroelectrochemical Evaluation of Homogeneous Electron Transfer Involving Biological Molecules" (1975). Chemistry Faculty Research and Publications. 419.
https://epublications.marquette.edu/chem_fac/419