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Electron impact mass spectrometry of ethyl esters of halogenated acetic acids
Author(s) -
Catinella Silvia,
Favretto Donata,
Traldi Pietro,
Bravo Pierfrancesco,
Viani Fiorenza
Publication year - 1992
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210270305
Subject(s) - electron ionization , chemistry , mass spectrometry , fragmentation (computing) , metastability , acetic acid , ion , halogen , kinetic energy , decomposition , analytical chemistry (journal) , organic chemistry , chromatography , alkyl , physics , quantum mechanics , computer science , ionization , operating system
The behaviour of a series of differently halogenated acetic acid ethyl esters was studied using electron impact and metastable ion techniques. The presence of different halogens strongly influences the fragmentation pathways and also the kinetic energy release values associated with some decomposition routes. By mass‐analysed ion kinetic energy spectrometry, a composite metastable peak was detected for the transition CF 2 BrCO + → CF 2 Br + , and rationalized on the basis of two different structures for the precursor ion.