Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
220807 | Journal of Electroanalytical Chemistry | 2007 | 6 Pages |
Abstract
A bond-breaking electron transfer from a metal to a diatomic molecule is considered, with focus on the effect of the reactant’s separation from the electrode. When the reactant interacts only with a wide sp-band on the metal, the energy of activation is reduced with decreasing separation, but this effect is comparatively small and mainly caused by a decrease of the energy of reorganization. In contrast, a coupling to a narrow d-band centered near the Fermi level can lead to a drastic reduction of the activation energy, which is caused by a splitting of the molecule’s antibonding orbital as the system passes the saddle point.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
E. Santos, W. Schmickler,