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Photofragmentation of the K-shell excited perfluorocyclobutane: anisotropies in the fragments and breakdown pathways

✍ Scribed by K. Okada; A. Suemitsu; T. Terashima; Y. Iwasaki; Y. Tamenori; I. H. Suzuki; S. Nagaoka; K. Tabayashi

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 185 KB
Volume: 46
Category: Article
ISSN: 1076-5174
DOI: 10.1002/jms.1932

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✦ Synopsis

Abstract

Total ion yield spectrum of perfluorocyclobutane (c‐C~4~F~8~) has been measured in the C and F K‐shell excitation regions. The peak assignments are presented based on angle‐resolved photofragment ion mass spectrometry. The peaks at 291.34 and 688.5 eV are found to come from the transitions from the C 1s and the F 1s to the lowest unoccupied b~2~σ~CF~* orbital, respectively. A photoelectron–photoion–photoion coincidence spectrum is acquired at 700.1 eV for clarifying the breakdown pathways of c‐C~4~F~8~^2+^. Two series of the pathways are identified; fission of F atom(s) followed by charge separation and elimination of CF~2~ or CF~3~ followed by charge separation. Copyright © 2011 John Wiley & Sons, Ltd.

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