Behavior of hydrogen atoms in the fragmentation of CH3CD3

Abstract

The behavior of hydrogen atoms in the fragmentation of CH3CD3 has been studied by use of a monoenergetic electron beam. Ionization efficiency curves for ions (m/e 3, 4, 15 to 18, 26 to 33) from CH3CD3 have been measured over ranges of 12 to 30 eV near their appearance thresholds. Mass spectra over various ranges of m/e have been measured at several electron energies. It has been found that at least two processes participate in the formation of C2X4+ and CH3+(X = H or D) and the rates of these processes depend on the energy of electron beam. The formations of C2X2+ and X2+ are independent of the electron energy.