Photoinduced dissociation reactions of silver fluoride cluster ions
Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
Corresponding author: a firstname.lastname@example.org
Revised: 18 October 2006
Published online: 24 May 2007
Photoinduced dissociation in the ultraviolet region has been investigated for AgnF n-1+ cluster ions. Photodissociation spectrum of Ag2F+ in the energy of 3.8–5.6 eV exhibits several sharp bands corresponding to the transition to electronically excited states. In this dissociation, only the Ag2+ ion was observed as a fragment ion. Theoretical calculation indicates that the parent Ag2F+ ion has a linear Ag-F-Ag equilibrium geometries in the ground and excited states. Since conformational changes by excitation of bending vibration are necessary for the fragmentation of an F atom, this indicates that production of Ag2+ from Ag2F+ is a result of internal conversion and following conformational changes.
PACS: 36.40.Mr – Spectroscopy and geometrical structure of clusters / 36.40.Qv – Stability and fragmentation of clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007