The fragmentation dynamics of small Cs(CsI)(n)(+) cluster ions under low-energy multiple collision conditions
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. ISSN 1387-3806Full text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.ijms.2004.01.010
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|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||INTERNATIONAL JOURNAL OF MASS SPECTROMETRY|
|Publisher:||ELSEVIER SCIENCE BV|
|Date:||15 April 2004|
|Number of Pages:||5|
|Page Range:||pp. 355-359|
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