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The mass spectra of 1,2,4‐triazines and related compounds
Author(s) -
Palmer M. H.,
Preston P. N.,
Stevens M. F. G.
Publication year - 1971
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.1210050908
Subject(s) - mass spectrum , fragmentation (computing) , substituent , ring (chemistry) , chemistry , bicyclic molecule , ion , metastability , spectral line , nitrogen , pyrazole , triazine , high resolution , stereochemistry , computational chemistry , organic chemistry , physics , astronomy , computer science , operating system , remote sensing , geology
The mass spectra of monocyclic 1,2,4‐triazines and 1,2,4‐triazines fused to a pyrazole ring through a bridgehead nitrogen have been investigated: fragmentation pathways were elucidated by the use of metastable ions and high resolution mass measurements. The spectra of the monocyclic 1,2,4‐triazines indicate that loss of nitrogen from the molecular ions is a relatively unimportant feature. The decomposition modes of the bicyclic pyrazolo[3,2‐c]‐as‐triazines are sensitive to the nature of the substituent in the triazine ring.