Influence of temperature and solvent viscosity on the rate of the proton-transfer reaction between 2,4-dinitrophenol and tri-n-butylamine

K. J. Ivin; J. J. McGarvey; E. L. Simmons; R. Small

doi:10.1039/TF9716700104

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Transactions of the Faraday Society

Issue 0, 1971

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Influence of temperature and solvent viscosity on the rate of the proton-transfer reaction between 2,4-dinitrophenol and tri-n-butylamine

K. J. Ivin , J. J. McGarvey , E. L. Simmons and R. Small

Trans. Faraday Soc., 1971, 67, 104-109

DOI: 10.1039/TF9716700104

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A microwave-pulse temperature-jump technique has been used to study the proton-transfer reaction between 2,4-dinitrophenol and tri-n-butylamine in a number of solvents. The effect of solvent viscosity of the rate constant at room temperature indicates that diffusion processes influence the reaction. From a study of the reaction in chlorobenzene over the temperature range +38 to –14°, the apparent activation energy for the forward reaction is –3.5 kJ mol^–1. Possible reasons for the inadequacy of the Stokes-Einstein equation in the present systems are discussed.

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Transactions of the Faraday Society

Influence of temperature and solvent viscosity on the rate of the proton-transfer reaction between 2,4-dinitrophenol and tri-n-butylamine

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