Premium
Charge location and fragmentation under electron impact. IV—the behaviour under electron impact of some N ‐methyl, N ′‐R‐1,2,4‐phosphadiazetidine‐3‐ones and related compounds
Author(s) -
Baldwin M. A.,
Loudon A. G.,
Dunmur R. E.,
Schmutzler R.,
Gregor I. K.
Publication year - 1977
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.1210120504
Subject(s) - fragmentation (computing) , electron ionization , ionization , ion , chemistry , molecule , electron , atomic physics , ionization energy , computational chemistry , physics , organic chemistry , nuclear physics , computer science , operating system
The ionization potentials of a series of N ‐methyl, N ′‐R‐1,2,4‐phosphadiazetidine‐3‐ones and related compounds have been determined. The nature of the highest occupied orbital of the molecules and the use of empirical rules to rationalize the variations in the ionization potentials are discussed. The changes in the fragmentation patterns are related to the different low ionization potential site(s) in each molecule. The occurrence of various rearrangement ions are discussed on a similar basis.