State-selective dissociative double ionization of CH3I and CH2I2 via I 4d core-hole states studied by multi-electron-ion coincidence spectroscopy

Mizuho Fushitani*, Yasumasa Hikosaka, Motomichi Tashiro, Akiyoshi Hishikawa

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

抄録

The dissociative double ionization of CH3I and CH2I2 irradiated with extreme ultraviolet light at hv = 100 eV is investigated by multi-electron-ion coincidence spectroscopy using a magnetic bottle type electron spectrometer. The spin-orbit state-resolved Auger electron spectra for the I 4d core-hole states, (I 4d3/2)−1 and (I 4d5/2)−1, provide clear identifications of electronic states of CH3I2+ and CH2I22+. The dominant ion species produced after the double ionization correlate with the Auger electron energy, showing that different fragmentation pathways are open depending on the electronic states populated by the Auger decay. Theoretical calculations are performed to understand the fragmentation from the doubly charged states and the observed spin-orbit specificity in the Auger decay.

本文言語英語
論文番号174307
ジャーナルJournal of Chemical Physics
160
17
DOI
出版ステータス出版済み - 2024/05/07

ASJC Scopus 主題領域

  • 物理学および天文学一般
  • 物理化学および理論化学

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