Abstract
We discuss the possibility of using the energy of the transmitted electron (ε{lunate}) as a control parameter in electron transfer (ET) reactions. The change in response of the system is entirely contained, within the simplest model, in the effective electronic coupling, which exhibit sharp changes in the resonance region and near its minima as a function of ε{lunate}. The positions of the minima are strongly influenced by the molecular geometry. To calculate the effective coupling, we use a Green's function approach. The electronic structure is calculated within an extended Hückel model. We show the interference and resonance behavior appears for a very simple a four-site model with multisite interactions. The interference effects disappear in a tight binding model of the same system. Application to a molecular system dramatically shows these effects.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 81-86 |
| Number of pages | 6 |
| Journal | Journal of Photochemistry and Photobiology, A: Chemistry |
| Volume | 82 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - Aug 23 1994 |
Funding
AC. was a recipient of a Pew Foundation Fellowship. We wish to acknowledge Dr. Mathieu Kemp for many stimulating discussions on the subject of electron transfer. V.M. acknowledges a Venezuelan Fellowship during his sabbaticaly ear. Funding for this investigation was provided by the Office of Naval Research, under Grant No. NOOO14-92-51684.
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Physics and Astronomy