Experimental and theoretical studies of (CsI)nCs+ cluster ions produced by 355 nm laser desorption ionization

F. A. Fernandez-Lima, C. Becker, K. Gillig, William Russell, Marco Antonio Chaer Nascimento, D. H. Russell

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Collision cross-sections of gas-phase (CsI)n = 1-7Cs+ cluster ions formed by pulsed-UV laser (355 nm) desorption ionization are measured by ion mobility-mass spectrometry. Experimental collision cross-sections are compared with calculated cross sections of candidate structures generated from a search for the lowest energy structures at the DFT/B3LYP/LACV3P** and MP2/LACVP3P** levels. The relative stabilities of these candidate structures are examined by IM-CID-MS, and the experimental results are compared to theoretical predictions. Analysis of (CsI)n = 1-7Cs+ cluster ion dissociation energies shows that the lower fragmentation thresholds are observed for cluster ions with the lower predicted stability.

Original languageEnglish (US)
Pages (from-to)11061-11066
Number of pages6
JournalJournal of Physical Chemistry A
Volume112
Issue number44
DOIs
StatePublished - Nov 6 2008
Externally publishedYes

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Ionization
Desorption
desorption
Ions
ionization
Lasers
lasers
cross sections
ions
charge injection devices
collisions
ultraviolet lasers
Discrete Fourier transforms
Mass spectrometry
pulsed lasers
fragmentation
mass spectroscopy
Gases
dissociation
vapor phases

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Experimental and theoretical studies of (CsI)nCs+ cluster ions produced by 355 nm laser desorption ionization. / Fernandez-Lima, F. A.; Becker, C.; Gillig, K.; Russell, William; Nascimento, Marco Antonio Chaer; Russell, D. H.

In: Journal of Physical Chemistry A, Vol. 112, No. 44, 06.11.2008, p. 11061-11066.

Research output: Contribution to journalArticle

Fernandez-Lima, F. A. ; Becker, C. ; Gillig, K. ; Russell, William ; Nascimento, Marco Antonio Chaer ; Russell, D. H. / Experimental and theoretical studies of (CsI)nCs+ cluster ions produced by 355 nm laser desorption ionization. In: Journal of Physical Chemistry A. 2008 ; Vol. 112, No. 44. pp. 11061-11066.
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