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Fragmentation of IsomericN‐Quinolinylphthalimides on Electron Impact Ionization
Author(s) -
Weisz Adrian,
Andrzejewski Denis,
Mandelbaum Asher
Publication year - 1996
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/(sici)1096-9888(199606)31:6<676::aid-jms342>3.0.co;2-7
Subject(s) - fragmentation (computing) , chemistry , electron ionization , ion , mass spectrum , ionization , collision induced dissociation , dissociation (chemistry) , chemical ionization , spectral line , mass spectrometry , collision , electron , atomic physics , tandem mass spectrometry , organic chemistry , nuclear physics , physics , chromatography , astronomy , computer security , computer science , operating system
The isomeric 2‐, 3‐, 5‐, 6‐ and 8‐quinolinylphthalimides give rise to different electron impact ionization mass spectra, which permit easy distinction. The specific fragmentation processes are rationalized in terms of proximity effects and stabilization of cyclic ion structures. Collision‐induced dissociation spectra were used to support the proposed ion structures of major fragment ions.