Ionic fragmentation following core-level photoionization of Sn(CH3)4 by soft X-rays

Kiyoshi Ueda, Eiji Shigemasa, Yukinori Sato, Shin ichi Nagaoka, Inosuke Koyano, Akira Yagishita, Tatsuji Hayaishi

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9 Citations (Scopus)


Ionic fragmentation following the photoionization of Sn(CH3)4 (TMT) has been studied in the photon energy range of 60-600 eV using synchrotron radiation and time-of-flight mass spectrometry. Each of the Sn: 4d, 4p, 3d and C: 1s photoionization leads to a type of ionic fragmentation that is characteristic of each ionized core. The Sn: 4d photoionization above 60 eV predominantly produces the doubly-charged TMT which dissociates into two singly-charged ions and some neutral fragments. The ions produced in this pathway are CH3+, C2H3+, C2H5+, SnCHm+ and/or Sn+. The Sn: 4p photoionization produces the triply-charged TMT and enhances the production of H+, CHm'+ (m' = 0-3) and Sn+ significantly. The Sn: 3d photoionization produces multiply-charged TMT whose charges are 3-5 and enhances the production of H+, CHm'+ (m' = 0-2) and Sn+ significantly. The C: 1s photoionization produces doubly-charged TMT via the KVV Auger transition and enhances the production of CH3+, C2H3+, SnCHm+ and/or Sn+.

Original languageEnglish
Pages (from-to)78-82
Number of pages5
JournalPhysica Scripta
Issue number1
Publication statusPublished - 1990 Jan 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics


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