Investigation of tautomeric A—H ⋯ B ⇌ A^–⋯ H—B⁺equilibrium by linear and non-linear dielectric polarization

1 January 1976

journal article
research article
Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics

Vol. 72, 1214-1220
https://doi.org/10.1039/f29767201214

Abstract

Proton motion within the hydrogen bond is discussed, and the non-linear dielectric effect is used to check the tautomeric equilibrium hypothesis of two equilibrium positions of the proton. The results of this investigation lead to the conclusion that the simultaneous existence of tautomers with a lifetime longer than the dielectric relaxation time is highly doubtful. The results, however, are in good agreement with the charge transfer model of the hydrogen bond as well as with the proton transfer model which has a very low activation barrier or rapid proton tunneling in the hydrogen bridge.

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Investigation of tautomeric A—H ⋯ B ⇌ A–⋯ H—B+equilibrium by linear and non-linear dielectric polarization

Abstract

Keywords

Investigation of tautomeric A—H ⋯ B ⇌ A^–⋯ H—B⁺equilibrium by linear and non-linear dielectric polarization