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Methyl transfer in field desorption mass spectrometry of ammonioalkanecarboxylate hydrochloride salts
Author(s) -
Wood Gordon W.,
Collacott Ronald J.
Publication year - 1983
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.1210180110
Subject(s) - chemistry , mass spectrum , fragmentation (computing) , protonation , field desorption , intramolecular force , hydrochloride , desorption , mass spectrometry , ion , analytical chemistry (journal) , photochemistry , organic chemistry , chromatography , adsorption , computer science , ionization , operating system
Intramolecular methyl transfer has been observed previously in pyrolysis electron impact mass spectra of complex ammonioalkanecarboxylates. We present here field desorption mass spectra results of more simple N,N,N ‐trimethylammoniocarboxylate hydrochloride salts and their N,N,N ‐perdeuterotrimethylammonium analogs in which we observe methyl transfer. We demonstrate that mechanisms for this and other fragmentation and rearrangement processes are dependent on anode heating current. Addition of the protonating agent p ‐toluenesulfonic acid suppresses most ions except the protonated molecular ion.