Fragmentation, charge transfer and chemical reactions in C⁺₆₀/C⁺₇₀-SP₆ collisions

Collisions of C⁺₆₀ and C⁺₇₀ with SF₆ were investigated in a time of flight mass spectrometer and compared with the results of collisions with Ar and Xe. Reaction cross sections were determined as a function of the center of mass collision energy between 25 and 300 eV. The influence of thermal excitation on fragmentation was examined. The effects of additional vibrational degrees of freedom in the case of SF₆ on the fragmentation cross sections are discussed. Charge transfer reactions producing C²⁺₆₀ or C²⁺₇₀ were observed only with SF₆. Thermal electron emission from highly excited C^-₆₀ was used for the formation of an intense neutral C₆₀ beam with 1 keV kinetic energy which was used to investigate charge transfer in neutral C₆₀+SF₆ collisions. Reaction products C_nF⁺, n = 1-11, were found in SF₆ collisions.