Picosecond Fluorescence Dynamics of P-Dimethylaminobenzonitrile in Alcohol Solution

Shyh Gang Su; John D. Simon

doi:10.1117/12.945455

Picosecond Fluorescence Dynamics of P-Dimethylaminobenzonitrile in Alcohol Solution

Shyh Gang Su, John D. Simon

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

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, τ_L¹. 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.

Original language	English
Pages (from-to)	155-161
Number of pages	7
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	910
DOIs	https://doi.org/10.1117/12.945455
Publication status	Published - 1988 Apr 27

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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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, τL1. 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.",

author = "Su, {Shyh Gang} and Simon, {John D.}",

note = "Funding Information: Financial support from the National Science Foundation, The Petroleum Research Foundation administered by the American Chemical Society and the Office of Naval Research are gratefully acknowledged.",

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AU - Simon, John D.

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Y1 - 1988/4/27

N2 - 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, τL1. 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.

AB - 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, τL1. 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.

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Picosecond Fluorescence Dynamics of P-Dimethylaminobenzonitrile in Alcohol Solution

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