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The fragmentation dynamics of small Cs(CsI)(n)(+) cluster ions under low-energy multiple collision conditions
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UNSPECIFIED (2004) The fragmentation dynamics of small Cs(CsI)(n)(+) cluster ions under low-energy multiple collision conditions. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 233 (1-3). pp. 355-359. doi:10.1016/j.ijms.2004.01.010 ISSN 1387-3806.
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Official URL: http://dx.doi.org/10.1016/j.ijms.2004.01.010
Abstract
The collision-induced dissociations of small caesium iodide cluster ions of the type Cs(CsI)(n)(+) where n = 3-7, have been investigated under low-energy multiple collision conditions. The collisions were performed in the rf-only quadrupole of a BEqQ hybrid mass spectrometer. Breakdown graphs of selected parent ions were obtained by varying the laboratory collision energy in the range of 0-400 eV. The fragmentation dynamic established under these conditions provides a link between the well-known decay behaviour occurring unimolecularly and the dissociations following high energy (keV) collisional activation. Of particular interest is the observation that the energy-dependent dissociation pattern supplies support for the occurrence of one-step fission reactions, featuring the evaporation of presumably intact (CsI)(n) neutrals as opposed to a sequential decay via nCsI losses. The breakdown graphs thus provide a valuable tool to enhance insight into the fragmentation mechanism of these clusters. (C) 2004 Elsevier B.V. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 1387-3806 | ||||
Official Date: | 15 April 2004 | ||||
Dates: |
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Volume: | 233 | ||||
Number: | 1-3 | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 355-359 | ||||
DOI: | 10.1016/j.ijms.2004.01.010 | ||||
Publication Status: | Published |
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