✦ LIBER ✦
Two competing fragmentation processes in dimethoxybenzenes depending on their positional isomers: Elimination of CH3 and CHnO (n = 1–3) and formation of methoxycyclopentadienyl and protonated phenol ions
✍ Scribed by Yoshihiro Mori; Yoshikazu Ogawa; Hiroyuki Shinoda; Taiji Kitagawa
- Book ID
- 102966465
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 728 KB
- Volume
- 27
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
✦ Synopsis
All the metastable transitions observed above m/z 39 in the first field-free region were compared for the three positional isomers of dimethoxybenzene. The observed isomerdependent fragmentation processes, in particular the formation and decomposition of the m/z 95 (C6H,0+) ion, are discussed in terms of two competing fragmentations lelimination of CH, and CH,O (n = 1-3) and formation of methoxycyclopentadienyl and protonated phenol ions] and the relative energies of several isomers of the C6H,0+ ion calculated with molecular orbital theory.