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Ion‐molecule reactions in alkyl cyanides: Identification of reactive hydrogen in precursor ions
Author(s) -
Heerma W.,
Dijkstra G.
Publication year - 1970
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.1210030312
Subject(s) - chemistry , ion , nitrile , deuterium , molecule , alkyl , hydrogen , hydrogen atom , proton , photochemistry , organic chemistry , atomic physics , physics , quantum mechanics
The relative abundance of [M + H] + ions in the spectra of different nitriles depends on the nature of the nitrile. A new method for the identification of ion‐molecule reactions has been applied, by determining the [M + D] + ion intensity with respect to the [M + H]+ ion intensity in the spectra of partially deuteriated alkyl cyanides. This intensity ratio is correlated with the hydrogen‐deuterium content of the suspected primary ions. In addition not only the reacting primary ions, but also the reactive hydrogen atom in the primary ion could be indicated. There is clear evidence that the proton attached to the nitrogen atom in the H 2 CCN + ˙H rearrangement ion is transferred to the nitrile molecule.