Site-specific fragmentation following inner-core level excitation of Pb(CH3)4 in the vapor phase

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

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 475 KB
• Volume: 154
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(89)85370-9

✦ Synopsis

Ionic fragmentation

following inner-shell (Pb 5p and 4f, C Is) excitation of Pb(CH3)4 has been studied in the vapor phase by use of synchrotron radiation and time-of-flight mass spectrometry. The C 1s ionization is followed by KVV Auger process, and the fragmentation proceeds by way of the doubly charged parent ion. The Pb 5p or 4f ionization is followed by a cascade of Auger events, and the fragmentation proceeds by way of the triply or higher multiply charged parent ions. The fragmentation pattern changes significantly depending on the site of the core electrons excited (Pb or C).