Accession Number:

ADA235572

Title:

Ultrafast Measurements on Direct Photoinduced Electron Transfer in a Mixed Valence Complex

Descriptive Note:

Technical rept.

Corporate Author:

MINNESOTA UNIV MINNEAPOLIS DEPT OF CHEMISTRY

Personal Author(s):

• Walker, Gilbert C.
• Barbara, Paul F.
• Doorn, Stephen K.
• Dong, Yuhua
• Hupp, Joseph T.

Report Date:

1991-05-06

Pagination or Media Count:

23.0

Abstract:

In this paper, we report the first direct kinetic measurement of a MMCT optically induced et reaction, and compare the experimental results to theoretical predictions using experimentally estimated parameters. Our work is oriented, in part, toward evaluating contemporary theoretical models that explicitly consider the dramatic effect of solvation dynamics on et rates. In the last decade it has been established that et rates can be directly proportional to the time scale for solvent motion for simple systems in certain limits. The transient pump-probe apparatus has been described elsewhere. The laser source is an intermediate repetition rate 8.2kHz amplified dye laser with 70fs pulse duration. The energy of the pump and probe pulses were typically 400 and 20 nj, respectively.

Descriptors:

• *SOLVATION
• PUMPS
• PROBES
• HIGH RATE
• REPETITION RATE
• PREDICTIONS
• MODELS
• DYNAMICS
• THEORY
• ENERGY
• MOTION
• LASERS
• TIME
• PULSES
• SCALE
• SOLVENTS
• VALENCE
• MIXING
• DYE LASERS
• KINETICS
• AMPLIFICATION
• SOURCES
• MEASUREMENT

Subject Categories:

• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE