Accession Number:

AD0647491

Title:

CONSECUTIVE ION-MOLECULE REACTIONS IN METHANE INVESTIGATED BY MEANS OF POSITIVE ION-IMPACT,

Descriptive Note:

Corporate Author:

ROYAL INST OF TECH STOCKHOLM (SWEDEN) DEPT OF PHYSICS

Personal Author(s):

• Szabo,I.

Report Date:

1966-11-15

Pagination or Media Count:

24.0

Abstract:

The ion-molecule reactions in methane CH4 were studied in detail up to third order processes in the pressure range 0.00008 - 0.001 mm Hg. From the pressure dependence of the ion currents, the mechanism of the formation of the product ions can be determined as a function of the energy absorbed by the molecule during the charge exchange. The ion-molecule reactions are discussed. Between 15.5 eV and about 20 eV the fragment ion CH2 is formed in the ground state, but above 20 eV the main part of the CH2 ions is probably in an excited state that can cause ion-molecule reactions of different type. Author

Descriptors:

• (*METHANE
• ION BOMBARDMENT)
• IONS
• MOLECULES
• CHEMICAL REACTIONS
• EXCHANGE REACTIONS
• DISSOCIATION
• REACTION KINETICS
• MASS SPECTRA
• ATOMIC ENERGY LEVELS
• SWEDEN

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE