Non-fluorinated Self-assembled Monolayer Films?

نویسنده

  • J. H. Callahan
چکیده

We report here the spectra that result when singly and doubly charged buckminsterfullerene ions, C& and C g , 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(CHz),7SH), perdeuteroeicosanethiol (CD,(CDz),$H), and 2-(perfluorooctyl)-ethanethiol (CF3(CFd7CH2CHZSH) 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 g is detected in collisions with this surface than in collisions with the alkanethiolate surfaces.

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تاریخ انتشار 2004