Analytical Chemistry and Spectroscopy
Wiley InterScience Backfile Collection 1832-2000
We report here the spectra that result when singly and doubly charged buckminsterfullerene ions, C60+· and C602+, collide with self-assembled monolayer films at collison energies ranging from 125 to 320 eV. The surfaces were prepared by the spontaneous assembly of octadecanethiol (CH3(CH2)17SH), perdeuteroeicosanethiol (CD3(CD2)19SH), and 2-(perfluorooctyl)-ethanethiol (CF3(CF2)7CH17CH2SH) on vapor-deposited gold. The fluorinated surface causes the greatest conversion of kinetic energy into internal energy, more extensive fragmentation of doubly charged buckminsterfullerene C602+ is detected in collisions with this surface than in collisions with the alkanethiolate surfaces.
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