A Study of the Entropic and Electrolyte Effects in Electron Transfer Reactions.
Abstract
The entropy of activation delta S for electron transfer reactions occurring in concentrated electrolyte solutions is calculated, taking into account the electrostatic and electronic contributions. By applying the mean spherical and exponential approximations to treat a simple model of electrolytes (hard charged spheres in a dielectric continuum), the pair distribution function is calculated. These approximations are also used to calculate the electrolyte reorganization term, since both quantities contribute to the electrostatic part of delta S. Numerical application is made to the ferrous-ferric exchange reaction in 0.55 M HClO4. Results of a preliminary electron tunneling calculation for the electron transfer are included. Reasonable agreement between observed and calculated delta S is obtained. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1977
- Accession Number
- ADA035103
Entities
People
- Eduardo Waisman
- Gary Worry
- Rudolph A. Marcus
Organizations
- University of Illinois Urbana–Champaign