Accession Number : AD0845819

Title :   On the Collision Mechanism of Bimolecular Reactions. Part II: The Stripping Mechanism of the Reactions Ar(+)+H2(D2) to ArH(+)+H(ArD(+)+D) at Energies >20 eV,

Corporate Author : HARVARD STUDENT AGENCIES INC CAMBRIDGE MA INFORMATION GATHERING SERVICE

Personal Author(s) : Lacmann, K. ; Henglein, A.

Report Date : OCT 1968

Pagination or Media Count : 19

Abstract : The bands of ArH(+) and ArD(+) ions have been observed in the velocity spectra of the ions resulting from the interaction (chemical reaction and scattering) of Ar(+) ions with H2 and D2, respectively. The bands are practically located as it is expected from the stripping model. It is concluded that the Ar(+) ion does not collide with the whole hydrogen molecule in a completely inelastic manner as it is the case at low kinetic energies, where the polarization theory of ion-molecule reactions is applicable. The Ar(+) ion interacts only with the captured hydrogen atom without transfer of momentum to the second atom. The critical energies of the incident Ar(+) ions, above which the cross sections of the two reactions are zero, differ by a factor of about 2 and agree with the energies calculated from the stripping model. In addition, some minor deviations from the stripping model are mentioned. (Author)

Descriptors :   *IONIZATION), (*ARGON, HYDROGEN, DEUTERIUM, INTERACTIONS, VELOCITY, KINETIC ENERGY, DISSOCIATION, SCATTERING, POTENTIAL ENERGY, WEST GERMANY.

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE