Experimental and theoretical studies of (CsI)n Cs+ cluster ions produced by 355 nm laser desorption ionization. Academic Article

abstract

• Collision cross-sections of gas-phase (CsI)n = (1-7)Cs(+) 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 = (1-7)Cs(+) cluster ion dissociation energies shows that the lower fragmentation thresholds are observed for cluster ions with the lower predicted stability.

authors

• Russell, David

published proceedings

• J Phys Chem A

author list (cited authors)

• Fernandez-Lima, F. A., Becker, C., Gillig, K., Russell, W. K., Nascimento, M., & Russell, D. H.

citation count

• 28

complete list of authors

• Fernandez-Lima, FA||Becker, C||Gillig, K||Russell, WK||Nascimento, Marco Antonio Chaer||Russell, DH

publication date

• November 2008

publisher

• American Chemical Society (ACS)  Publisher

published in

• The Journal of Physical Chemistry A: Isolated Molecules, Clusters, Radicals, and Ions; Environmental Chemistry, Geochemistry, and Astrochemistry; Theory  Journal

keywords

• 0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics
• 0299 Other Physical Sciences
• 0306 Physical Chemistry (incl. Structural)

PubMed Central ID

• 18841946

Digital Object Identifier (DOI)

• 10.1021/jp8047086

start page

• 11061

end page

• 11066

volume

• 112

issue

• 44

URL

• http://dx.doi.org/10.1021/jp8047086