Ionic fragmentation following the 3d core excitation of Sn(CH3)4 by soft X-rays

✍ Scribed by Kiyoshi Ueda; Eiji Shigemasa; Yukinori Sato; Shin-ichi Nagaoka; Inosuke Koyano; Akira Yagishita; Tetsuo Nagata; Tatsuji Hayaishi

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 473 KB
• Volume: 154
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(89)85369-2

✦ Synopsis

Ionic fragmentation

following the core-level photoionization of Sn(CH,)I has been studied in the photon energy region between 400 and 600 eV by use of monochromatized synchrotron radiation and time-of-flight mass spectrometry. The production of small ionic fragments Sn+, CHt (m=O-2), and H+ is strongly enhanced by Sn 3d photoionization above 500 eV. Fragmentation processes yielding such small ions are interpreted as decomposition of the multiply charged ion Sn(CH,)B' (q=3-5) produced by the vacancy cascade via Auger and/or Coster-Kronig transitions following the Sn 3d photoionization. * This work has been performed with the approval of the Photon Factory Program Advisory Committee (Proposal No. 87-105