Positive and negative cluster ions from liquid ethanol by fast ion bombardment
Autor: | Akio Itoh, Hidetsugu Tsuchida, T. Hayakawa, Y. Iriki, Masahiro Kaneda, M. Shimizu |
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Rok vydání: | 2010 |
Předmět: |
Ions
Ethanol Chemistry Analytical chemistry General Physics and Astronomy Spectrometry Mass Secondary Ion Fast atom bombardment Mass spectrometry Ion source Ion Physics::Fluid Dynamics Ion beam deposition Physics::Plasma Physics mental disorders secondary ion mass spectra Mass spectrum Cluster (physics) Molecule ion-surface impact Physical and Theoretical Chemistry organic compounds |
Zdroj: | The Journal of chemical physics. 132(14) |
ISSN: | 1089-7690 |
Popis: | Secondary ion mass spectra have been measured for the first time for a liquid ethanol target bombarded by 2.0 MeV He(+) ions. Positive and negative ion spectra exhibit evidently a series of cluster ions of the forms [(EtOH)(n)H](+) and [(EtOH)(n)-H](-), respectively, in addition to light fragment ions from intact parent molecules. It was found that these cluster ions are produced only from liquid phase ethanol. Both positive and negative secondary ion spectra show similar cluster size distributions with almost the same decay slope. We also present for the first time the cluster ion distribution emitted from the liquid at different liquid temperatures. |
Databáze: | OpenAIRE |
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