NEGATIVE ION FORMATION IN CARBON DISULFIDE AND CARBONYL SULFIDE

The formation of negative ions in carbon disulfide and carbonyl sulfide has been studied. At low electron energies ions of the formula Sn- (n ≤ 6) are formed, their formation is attributed to thermal decomposition of the sulfides on the filament. The principal ions in CS2 are S-, S2-, C-, CS-, and CS2-. In COS they are S-, S2-, CS-, O-, and OS-. The onset and energy dependence of the ions from both systems are reported.