Electron stimulated desorption of condensed,branched alkanes |
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Authors: | JA Kelber ML Knotek |
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Institution: | Sandia National Laboratories, Albuquerque, New Mexico 87185, USA |
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Abstract: | Electron stimulated desorption of H+, CH3+, H2+ and D+ has been measured as a function of excitation energy for condensed phase neopentane, tetramethylsilane, 2-methylpropane-1-d1, and 2-methylpropane-2-d1. The data show that the processes which result in both H+ and CH3+ production are initiated by the same excitation. The excitations which produce H+, CH3+ and H2+ appear to be largely localized on the methyl groups. The results indicate that multi-electron (hole) final states are responsible for H+ and CH3+ desorption. |
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