Energy transfer during dissociative charge-transfer reactions of methane with H₂⁺ and He⁺

The near-adiabatic theory has been applied to interpret the dissociative charge-transfer reactions of methane with H₂⁺ and He⁺. The results are consistent with the proposition that the appearance potentials of the fragment ions correspond to electronic energy levels of the CH₄⁺ ion. An internal energy distribution of the primary product CH₄⁺ ion is obtained by plotting the relative abundance against the appearance potential for the various fragment ions. © 1975.