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Effect of high pressure on Enol-Keto tautomerization in salicylic acid: A study by steady-state absorption and fluorescence measurements
, Masami Okamoto, Satoshi Hirayama
Published in American Chemical Society
1997
Volume: 101
   
Issue: 44
Pages: 8850 - 8855
Abstract
The effects of pressure (0.1-450 MPa) on enol-keto tautomerization reaction in salicylic acid (SA) have been investigated by steady-state absorption, fluorescence emission, and excitation spectroscopy. In dilute solutions, the emission intensity of the keto form of the monomer shows marked increase with pressure. In concentrated solutions, where only dimers are present, only a very small increase in the fraction of the keto form of the dimers is observed by applying high pressures. A possible reaction mechanism for such a behavior is discussed.
About the journal
JournalData powered by TypesetJournal of Physical Chemistry B
PublisherData powered by TypesetAmerican Chemical Society
Open AccessNo
Concepts (13)
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    Absorption spectroscopy
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    Carboxylic acids
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    Charge transfer
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    Conformations
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    Emission spectroscopy
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    Fluorescence
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    High pressure effects
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    Monomers
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    Reaction kinetics
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    ENOL KETO TAUTOMERIZATION
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    EXCITATION SPECTROSCOPY
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    Salicylic acid
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    Molecular dynamics