Double-ionization energies of CCl4 by double-charge-transfer and x-ray Auger-electron spectroscopies

Fragmentation dynamics of tetrachloromethane molecule induced by highly charged Ar7+-ion impact

The ion impact multiple ionization and subsequent dissociation of CCl₄ is studied using a beam of Ar⁷⁺ ion having the energy of about 1 MeV in a linear time- of-flight mass spectrometer, coupled with a position-sensitive detector. The complete, as well as incomplete Coulomb explosion pathways, for CCl₄ ²⁺ and CCl₄ ³⁺ ions are identified and studied. The kinetic energy release distributions of channels, kinetic energies, and momentum distributions of fragmented ions, as well as neutrals, are also calculated. Possible modes of fragmentation pathways, i.e., concerted and/or sequential, for all the identified channels are studied using Newton diagrams, Dalitz plots, and kinetic energy distributions. The dynamical information and fragmentation pathways were analyzed with the Dalitz plot and Newton diagram for the three-body dissociation channel. The nature of the fragmentation process is further investigated with simulated Dalitz plots and Newton diagrams using the simple classical mechanical model.