Photofragmentation of the K-shell excited perfluorocyclobutane: anisotropies in the fragments and breakdown pathways |
| |
Authors: | Okada K Suemitsu A Terashima T Iwasaki Y Tamenori Y Suzuki I H Nagaoka S Tabayashi K |
| |
Affiliation: | Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan. okadak@sci.hiroshima-u.ac.jp |
| |
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. |
| |
Keywords: | inner‐shell excitation perfluorocyclobutane gas phase anisotropy breakdown pathway |
本文献已被 PubMed 等数据库收录! |