Some aspects of electron-transfer reaction dynamics

Journal Article (Journal Article)

We prissent a simple, but complete, quantum mechanical model for electron transfer. It contains the elements necessary to calculate a rate: electron, reaction coordinate(s), and bath. The completeness of the model allows analysis of the dynamical aspects of the transfer (validity of the nonadiabatic, Born-Oppenheimer, and Condon approximations, for example). Interaction between the reaction coordinate(s) and the bath is discussed for "weak" and "strong" coupling, and the rate expression is derived in these limits. A model for donor and acceptor vibronic wave functions is solved exactly by using a molecular orbital approach. The rates are calculated from these states and a comparison with the standard Born-Oppenheimer/Condon result is made. The nature of the "inverted" effect is found to depend on transfer distance and details of the vibronic coupling. © 1986 American Chemical Society.

Full Text

Duke Authors

Cited Authors

  • Onuchic, JN; Beratan, DN; Hopfield, JJ

Published Date

  • January 1, 1986

Published In

Volume / Issue

  • 90 / 16

Start / End Page

  • 3707 - 3721

International Standard Serial Number (ISSN)

  • 0022-3654

Digital Object Identifier (DOI)

  • 10.1021/j100407a045

Citation Source

  • Scopus