Electron–ion and ion–ion studies of the behavior of CS2 upon core electron excitation

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Abstract
We have obtained mass spectra in coincidence with Auger electrons of various kinetic energies which result from the S 2p excitation of CS2. We have also obtained ion–ion coincidence mass spectra of CS2 resulting from the decay of S 2p core electron excitation. These spectra show that the various electronic states of CS2+2, which are produced by Auger processes following the core electron excitation, yield different electronic and vibrational states of the fragmentation products so that the kinetic energy released in the fragmentation is nearly constant. The population of the more highly excited states of CS2+2, corresponding to removal of electrons from the deep valence levels, results in atomization of the system.