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Low‐energy mass spectra of some aliphatic ketones
Author(s) -
Abbatt Jonathan A.,
Harrison Alex G.
Publication year - 1986
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.1210210906
Subject(s) - mass spectrum , spectral line , ion , chemistry , metastability , electron ionization , analytical chemistry (journal) , reagent , charge (physics) , physics , organic chemistry , ionization , quantum mechanics , astronomy
The charge exchange mass spectra of a selection of C 5 ‐C 7 ketones have been measured using [CS 2 ] + ˙, [COS] + ˙ and [N 2 O] +. as reagent ions. The low energy charge exchange with [CS 2 ] + ˙ or [COS] + ˙ provides simple primary ion mass spectra, which readily permit structure elucidation in contrast to metastable ion spectra. In several cases, isomer distinction is easier from the charge exchange mass spectra than from the electron impact mass spectra. The energy transfer from [N 2 O] + ˙ is sufficiently high for complex spectra resembling electron impact mass spectra to be obtained.