A mass spectrometry/mass spectrometry investigation of the nature of [C10H10]+˙, [C9H7]+ and [C10H8]+˙ gas phase ions

✍ Scribed by Chhabil Dass; M. L. Gross

• Publisher: John Wiley and Sons
• Year: 1983
• Tongue: English
• Weight: 522 KB
• Volume: 18
• Category: Article
• ISSN: 1076-5174
• DOI: 10.1002/oms.1210181210

✦ Synopsis

Additional evidence for the rearrangement of the 1-and 3-phenylcyclobutene radical cations, their corresponding ring-opened 1,s-butadiene ions and 1,Z-dihydronaphthalene radical cations to methylindenetype ions has been obtained for the decomposing ions by mass analysed ion kinetic energy spectroscopy (MIKES). The nature of the [C,H7]' and [Cl,&]" daughter ions arising from the electron ionization induced fragmentation of these [CloHlo]+' precursors has been investigated by collisionally activated dissociation (CAD), collisional ionization and ion kinetic energy spectroscopy. The [C,H7]+ produced from the various CloHl, hydrocarbons are of identical structure or an identical mixture of interconverting structures. These ions are similar in nature to the [cH,]+ generated from indene by low energy electron ionization. The [Cl,&]+' ions also possess a common structure, which is presumably that of the naphthalene radical cation.