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Collisions of C 60 +· and C 60 2+ at fluorinated and non‐fluorinated self‐assembled monolayer films
Author(s) -
Callahan J. H.,
Somogyi Á.,
Wysocki V. H.
Publication year - 1993
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290070802
Subject(s) - chemistry , monolayer , buckminsterfullerene , ethanethiol , self assembled monolayer , fragmentation (computing) , ion , kinetic energy , spectral line , crystallography , photochemistry , analytical chemistry (journal) , fullerene , organic chemistry , biochemistry , physics , quantum mechanics , astronomy , computer science , operating system
We report here the spectra that result when singly and doubly charged buckminsterfullerene ions, C 60 + · and C 60 2+ , 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 (CH 3 (CH 2 ) 17 SH), perdeuteroeicosanethiol (CD 3 (CD 2 ) 19 SH), and 2‐(perfluorooctyl)‐ethanethiol (CF 3 (CF 2 ) 7 CH 17 CH 2 SH) on vapor‐deposited gold. The fluorinated surface causes the greatest conversion of kinetic energy into internal energy, more extensive fragmentation of doubly charged buckminsterfullerene C 60 2+is detected in collisions with this surface than in collisions with the alkanethiolate surfaces.