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Journal of Electron Spectroscopy and Related Phenomena 88-91 (1998) 71-75
Ionic fragmentation of inner-shell excited molecules Adam P. Hitchcock^a,*, John J. Neville^a , Astrid Jürgensen^b, Ronald G. Cavell^b ^aBIMR, McMaster University, Hamilton, Ontario Canada L8S 4MI ^bDepartment of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2

Abstract

The combination of tuneable synchrotron radiation and multicoincidence time-of-flight mass spectrometry is an effective means of studying the core-hole decay and fragmentation of inner-shell excited molecules. In addition to aiding spectral interpretation, partial ion and ion-pair yields enable both the more specific identification of fragmentation channels and, the identification of site and/or state selective fragmentation processes. The power of photoelectron-photoion-photoion-coincidence (PEPIPICO) and related techniques is illustrated using selected examples from recent high resolution spectroscopic and ionic fragmentation studies of PF₃ and SPF₃.

Keywords: Photoionization; Photofragmentation; Inner-shell excitation; Mass spectrometry; Synchrotron radiation

ã 1998 Elsevier Science B.V.