The value of β, coupling term in Marcus Theory: Moser-Dutton Simplification

Range 0.7 in covalently bonded molecules: 1.4 in proteins: 2.8 in a vacuum Å^-1
Organism Generic
Reference biophysics textbook online Golbeck, chapter 3, Photosynthetic Reaction Centers: So little time, so much to do, p.10 right column top paragraph
Comments The electronic coupling term depends on the distance between the electron donor and electron acceptor, and the nature of the intervening medium. The equation for the electronic coupling term is: HAB?e^(-ßR), where HAB is the coupling probability at close contact, R is the edge-to-edge distance between the electron donor and the electron acceptor, and depends on the nature of the intervening medium.
Entered by Uri M
ID 107123