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  Solvation of photolytically generated p-aminophenylthiyl radicals studied by sub-picosecond transient absorption.

Ernsting, N. P. (1990). Solvation of photolytically generated p-aminophenylthiyl radicals studied by sub-picosecond transient absorption. Chemical Physics Letters, 166(3), 221-226. doi:10.1016/0009-2614(90)80020-E.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-0E3A-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-3635-1
Genre: Journal Article

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603042.pdf (Publisher version), 483KB
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Ernsting, N. P.1, Author              
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1Abteilung Laserphysik, MPI for biophysical chemistry, Max Planck Society, ou_578547              

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 Abstract: By pump-and-probe spectroscopy, the photolysis of bis-(p-aminophenyl) disulfide in diethyl ether has been followed with sub-picosecond time resolution. The visible absorption band of generated p-aminophenylthiyl radicals rises in two stages: an unresolved fast initial rise is followed by a second, exponential rise with a time constant of 5.9 ps. During the second process, the peak absorption of the band shifts from its initial position at 557.9 to 572.0 nm. A rate-equation model quantitatively accounts for the observations. The first stage is assigned to the formation of the radical pair in a common solvent cage, and the second stage to the separation and solvation of the radicals.

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Language(s): eng - English
 Dates: 1990-02-23
 Publication Status: Published in print
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 Rev. Method: Peer
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Title: Chemical Physics Letters
Source Genre: Journal
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Pages: - Volume / Issue: 166 (3) Sequence Number: - Start / End Page: 221 - 226 Identifier: ISSN: 0009-2614