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J Phys Chem A. 2005 Sep 29;109(38):8548-52.

Ultrafast spectroscopy of the solvent dependence of electron transfer in a perylenebisimide dimer.

Author information

1
Department of Chemistry, Columbia University, New York, New York 10027, USA.

Abstract

We investigate the photoinduced intramolecular electron-transfer (IET) behavior of a perylenebisimide dimer in a variety of solvents using femtosecond transient absorption spectroscopy. Overlapping photoinduced absorptions and stimulated emission give rise to complicated traces, but they are well fit with a simple kinetic model. IET rates were found to depend heavily on solvent dielectric constant. Good quantitative agreement with rates derived from fluorescence quantum yield and time-resolved fluorescence measurements was found for forward electron transfer and charge recombination rates.

PMID:
16834252
DOI:
10.1021/jp0502050
[Indexed for MEDLINE]

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