Scholarlink

<p>The inner-shell ionization of selenophene at 120 eV produces a rich array of fragmentation dynamics, including many originating from Auger-Meitner processes. In this report, three-dimensional velocity-map imaging and covariance analysis were used to identify and characterize over 50 distinct selenophene fragmentation channels. The majority resulted in two or three ‘heavy’ products containing selenium or carbon, many of which had identical mass-to-charge ratios but different chemical compositions due to the degree of hydrogenation and the selenium isotope involved. Covariance analysis was used to isolate these reaction channels and to provide estimates of their relative yields. In combination with prior similar studies on thiophene and furan, the current results indicate that the nature of the heteroatom significantly influences the charge redistribution and bond cleavage dynamics induced by the Auger-Meitner process, and demonstrate the sensitivity of inner-shell ionization dynamics to the molecular and electronic structures of heterocyclic systems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The inner-shell ionization and fragmentation of selenophene at 120 eV

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月17日

查看全文
  • Tiffany Walmsley,
  • Felix Allum,
  • James R. Harries,
  • Yoshiaki Kumagai,
  • Joseph W. McManus,
  • Kiyonobu Nagaya,
  • Mathew Britton,
  • Mark Brouard,
  • Philip H. Bucksbaum,
  • Mizuho Fushitani,
  • Ian Gabalski,
  • Tatsuo Gejo,
  • Paul Hockett,
  • Andrew J. Howard,
  • Hiroshi Iwayama,
  • Edwin Kukk,
  • Chow-shing Lam,
  • Russell S. Minns,
  • Akinobu Niozu,
  • Sekito Nishimuro,
  • Johannes Niskanen,
  • Shigeki Owada,
  • Weronika O. Razmus,
  • Daniel Rolles,
  • James D. Somper,
  • Kiyoshi Ueda,
  • James Unwin,
  • Shin-ichi Wada,
  • Joanne L. Woodhouse,
  • Ruaridh Forbes,
  • Michael Burt,
  • Emily M. Warne

摘要

The inner-shell ionization of selenophene at 120 eV produces a rich array of fragmentation dynamics, including many originating from Auger-Meitner processes. In this report, three-dimensional velocity-map imaging and covariance analysis were used to identify and characterize over 50 distinct selenophene fragmentation channels. The majority resulted in two or three ‘heavy’ products containing selenium or carbon, many of which had identical mass-to-charge ratios but different chemical compositions due to the degree of hydrogenation and the selenium isotope involved. Covariance analysis was used to isolate these reaction channels and to provide estimates of their relative yields. In combination with prior similar studies on thiophene and furan, the current results indicate that the nature of the heteroatom significantly influences the charge redistribution and bond cleavage dynamics induced by the Auger-Meitner process, and demonstrate the sensitivity of inner-shell ionization dynamics to the molecular and electronic structures of heterocyclic systems.