Metastable and collision-induced fragmentation of selected C3H6S+· isomers; evidence for extensive isomerization

✍ Scribed by Cornelis E. C. A. Hop

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 352 KB
• Volume: 30
• Category: Article
• ISSN: 1076-5174
• DOI: 10.1002/jms.1190300910

✦ Synopsis

Abstract

The metastable ion (MI) and collision‐induced dissociation (CID) mass spectra of five C~3~H~6~S^+·^ isomers were examined. The MI mass spectra were virtually identical, which suggests that C~3~H~6~S^+·^ ions having a substantial amount of internal energy can freely interconvert and isomerize into a common structure prior to fragmentation. However, the CID mass spectra are distinctly different and the differences can be related to the structure of the C~3~H~6~S^+·^ isomers. It was even possible to distinguish the distonic ion H~2~CCH~2~SCH~2~^+·^ from its conventional counterpart magnified image. The smaller amount of internal energy of the ions probed in CID experiments obviously limits isomerization.