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Kinetic studies in mass spectrometry—V: Evaluation of wide range electron energy kinetics and metastable ion relative abundance techniques, and the structures of [XC 6 H 4 CH 2 ] + ions generated from substituted benzyl phenyl ethers and toluenes
Author(s) -
Brown Peter
Publication year - 1969
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.1210021107
Subject(s) - ion , kinetic energy , metastability , decomposition , chemistry , mass spectrometry , kinetics , range (aeronautics) , abundance (ecology) , analytical chemistry (journal) , chemical physics , materials science , physics , organic chemistry , chromatography , quantum mechanics , composite material , fishery , biology
The problem of ion structure and energy is discussed briefly and attention directed to the existence of two types of structural information. Studies of ion formation reactions bear on the initial structure of the ion, whereas decomposition reactions relate to the ion at a later time, after structural rearrangement has had chance to occur. The desirability of conducting both types of investigation concurrently is emphasized. Of the available experimental methods at this time, kinetic measurements for formation studies and metastablel ion relative abundances for decomposition studies have been utilized, although other techniques may eventually prove preferable in the future. The [M – Y] reaction of a series of substituted benzyl substrates XC 6 H 4 CH 2 Y, where Y = OC 6 H 5 and H, has been examined, and the present results are compared with previous work on ion structure and energy in this area, with the aim of evaluating the potential of the newer techniques.