State-selected electron capture by molecular ions: collisions of CS₂²⁺ and CS₂³⁺with monatomic and diatomic targets

Abstract

High resolution translation energy change spectra of product ions of electron capture collisions of CS₂²⁺ and CS₂³⁺ with rare-gas atoms and diatomic molecules, H₂, N₂ and O₂, have been measured using a modified, reversed geometry, double focusing mass spectrometer. Electron capture occurs selectively into the ground electronic state except in the case of CS₂³⁺ collisions with Xe and O₂. In the former case significant target excitation occurs whereas in the latter case the predominant reaction result is dissociative electron capture.