Ion Yields and Fragmentation Processes in the Radiolysis of HCl and DCl

Abstract

The ionization yield from fast electron impact on DCI under radiolysis conditions at 200 to 650 Torr was found to be 1.006 + 0.023 times that from HCI. Also primary ionization processes were investigated by mass spectrometry. The relative abundance of Cl + from HCI near threshold at 17.4eV was about twice that from DCI, but processes with onset at and above 21.0 eV did not exhibit an isotope effect. The interpretation of the results and their implications concerning the mechanism of radiolysis of HC1 were discussed. Can. J. Chem., 52,359 (1974)