Detachment of Electrons from F− Ions in a Shock-Heated Cesium Fluoride–Argon Mixture

15 September 1970

journal article
research article
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 53 (6) , 2363-2371
https://doi.org/10.1063/1.1674334

Abstract

Electron detachment rates from F⁻ have been measured in shock‐heated mixtures of cesium fluoride and argon. The detachment rate is found to increase exponentially with temperature, indicating an activation energy comparable to the electron affinity of F⁻. The rate constants for the reactions

F^{-} + Ar \to {lim}^{K(Ar)} F + Ar +e

and

F^{-} + {Cs}^{+} \to {lim}^{K({Cs}^{+})} F + {Cs}^{+} +e

have been found to be

{1.2 × 10}^{−11} \exp (− 40 000 / T) {cm}^{3} / \sec

and

{2.8 × 10}^{−9} \exp (− 40 000 / T) {cm}^{3} / \sec

, respectively, where

T

is in degrees Kelvin.

Keywords

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