Vibrational dynamics in photoinduced electron transfer. Progress report, December 1, 1992--November 30, 1993
Objective is to perform a new type of measurement for optically excited electron transfer processes that can provide unique experimental insight into the molecular mechanism of electron transfer. Measurements of optically excited electron transfer are done with picosecond infrared (IR) absorption spectroscopy to monitor the vibrational motions of the molecules immediately after electron transfer. Theory and experiment suggest that molecular vibrations and distortions are important controlling elements for electron transfer, and direct information has yet to be obtained on these elements of electron transfer mechanisms. The second period of funding has been dedicated to finishing technique development and performing studies of electron transfer in ion pair systems to identify if vibrational dependent electron transfer rates are present in this system. We have succeeded in measuring, for the first time, electron transfer rates as a function of vibrational state in an ion pair complex in solution. In a different area of electron transfer research we have proposed a new mechanism of solvent gated electron transfer.
- Research Organization:
- Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-91ER14228
- OSTI ID:
- 10179345
- Report Number(s):
- DOE/ER/14228-2; ON: DE93040874
- Resource Relation:
- Other Information: PBD: 8 Sep 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electron transfer rates from vibrational quantum states
Picosecond infrared study of vibrational dependent electron transfer rates