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A fourier transform ion cyclotron resonance study of the mechanism of formation of protonated dimethyl ether from methanol by use of naturally occurring 18 O
Author(s) -
Kleingeld J. C.,
Nibbering N. M. M.
Publication year - 1982
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.1210170307
Subject(s) - fourier transform ion cyclotron resonance , protonation , dimethyl ether , ion cyclotron resonance , methanol , chemistry , ion , molecule , mass spectrometry , ether , analytical chemistry (journal) , mass spectrum , abundance (ecology) , fourier transform , cyclotron , organic chemistry , physics , chromatography , quantum mechanics , fishery , biology
It is shown that ejection of mass selected ions of high abundance from the cell of a Fourier transform ion cyclotron resonance spectrometer permits the study of ion/molecule reactions of ions of very low abundance. Methanol is used as an illustration. Ejection of all ions with the exception of the 18 O labelled protonated methanol molecules, present at natural abundance, shows that the protonated dimethyl ether molecules in this system are formed mainly by an S N 2 displacement reaction.