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Site of protonation and bifunctional group interactions in α,ω‐hydroxyalkylamines
Author(s) -
Davis D. V.,
Cooks R. G.
Publication year - 1981
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.1210160407
Subject(s) - fragmentation (computing) , kinetic energy , chemistry , mass spectrum , mass spectrometry , dissociation (chemistry) , ion , collision induced dissociation , ionization , chemical ionization , protonation , ionic bonding , bifunctional , population , spectral line , electron ionization , analytical chemistry (journal) , atomic physics , computational chemistry , tandem mass spectrometry , organic chemistry , physics , chromatography , demography , quantum mechanics , sociology , computer science , catalysis , operating system , astronomy
Chemical ionization mass spectrometry and mass analyzed ion kinetic energy spectrometry in conjunction with collision induced dissociation are used to study the fragmentation behavior of a series of α,ω‐hydroxyalkylamines. The difference between the ionic population present at equilibrium in the source, and that which is sampled under nonequilibrium conditions, is revealed in the striking differences observed in product distributions in the chemical ionization mass spectra and the mass analyzed ion kinetic energy spectra. The major fragmentations in the mass analyzed ion kinetic energy spectra, loss of NH 3 and H 2 O, show large variations in intensity as a function of the chain length between the hydroxy and amino functionalities. These results are rationalized through analysis of the relevant thermochemical data.