Picosecond Fluorescence Dynamics Of P-Dimethylaminobenzonitrile In Alcohol Solution

Shyh-Gang Su; John D Simon

doi:10.1117/12.945455

27 April 1988 Picosecond Fluorescence Dynamics Of P-Dimethylaminobenzonitrile In Alcohol Solution

Shyh-Gang Su, John D Simon

Proceedings Volume 0910, Fluorescence Detection II; (1988) https://doi.org/10.1117/12.945455
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

The dynamics of the intramolecular charge transfer reaction of p-dimethylaminobenzonitrile is examined in alcohol solutions. The rate of charge separation is faster than the solvent fluctuation rate, TEl. Comparison of the experimental results with a recent theoretical model by Nadler and Marcus suggests that the rate of charge transfer is controlled by fluctuations in the intramolecular vibrational modes, not solvent diffusion. In addition, the TICT emission is observed to undergo a time dependent Stokes shift. The spectral relaxation is examined and compared to dielectric continuum models of solvent relaxation.

Citation Download Citation

Shyh-Gang Su and John D Simon "Picosecond Fluorescence Dynamics Of P-Dimethylaminobenzonitrile In Alcohol Solution", Proc. SPIE 0910, Fluorescence Detection II, (27 April 1988); https://doi.org/10.1117/12.945455

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