Fragmentation Mechanism of p-Cyanobenzoic Acid Isopropyl Ester by Electron Impact

Seiji Tobita; Tamae Yanagisawa; Kazuo Ogino; Susumu Tajima; Toshikazu Tsuchiya

doi:10.5702/massspec.32.339

Journal of the Mass Spectrometry Society of Japan

Online ISSN : 1880-4225
Print ISSN : 1340-8097
ISSN-L : 1340-8097

REGULAR PAPERS

Fragmentation Mechanism of p-Cyanobenzoic Acid Isopropyl Ester by Electron Impact

Seiji Tobita, Tamae Yanagisawa, Kazuo Ogino, Susumu Tajima, Toshikazu Tsuchiya

Author information

Keywords: Electron ionization mass spectra, Fragmentation mechanism, MIKE spectra, Deuterium labelling

JOURNAL FREE ACCESS

1984 Volume 32 Issue 4 Pages 339-344

DOI https://doi.org/10.5702/massspec.32.339

Details

Abstract

Fragmentation mechanism of p-cyanobenzoic acid isopropyl ester, in particular, that of the intermediate ion, [CNC₆H₄COOH₂]⁺ (m/z 148), generated by double hydrogen migrations, is investigated by using deuterium labelling technique and mass analyzed ion kinetic energy (MIKE) spectrometry. It is demonstrated that the intermediate ion has a protonated p-cyanobenzoic acid structure with the hydrogen atom on the carbonyl group.

Content from these authors

Favorites & Alerts

Corresponding author

Register with J-STAGE for free!