Document Type

Article

Publication Date

2008

Publication Title

Journal of Chemical Physics

Volume

128

Issue

134309

First page number:

7

Abstract

We have studied the fragmentation dynamics of core-excited SiF4 by means of soft-x-ray photoexcitation and partial positive and negative ion yield measurements around the Si L2,3-shell and F K-shell ionization thresholds. All detectable ionic fragments are reported and we observe significant differences between the various partial ion yields near the Si 2p threshold. The differences are similar to our previous results from CH3Cl showing more extended fragmentation in correspondence to transitions to Rydberg states. At variance with smaller systems, we observe negative ion production in the shape resonance region. This can be related to the possibility in a relatively large system to dissipate positive charge over several channels.

Keywords

Atomic orbitals; Electron configuration; Electronic excitation; Fragmentation reactions; Silane compounds

Disciplines

Analytical Chemistry | Atomic, Molecular and Optical Physics | Biological and Chemical Physics | Physical Chemistry

Language

English

Permissions

Copyright American Institute of Physics, used with permission

Identifier

DOI: 10.1063/1.2851135

UNLV article access

Search your library

Share

COinS