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Mechanistic aspects of high-energy collision-induced dissociation proximate to the charge in saturated fatty acid N-butyl esters cationized with lithium. Evidence for hydrogen radical removal
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UNSPECIFIED (1997) Mechanistic aspects of high-energy collision-induced dissociation proximate to the charge in saturated fatty acid N-butyl esters cationized with lithium. Evidence for hydrogen radical removal. In: 15th Informal Meeting on Mass Spectrometry, SMOLENICE, SLOVAKIA, MAY 12-16, 1997. Published in: RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 11 (16). pp. 1808-1812. ISSN 0951-4198.
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Abstract
The high-energy collision-induced dissociation spectra of [M+Li](+) ions of n-butyl palmitate or heptadecanoate and their labelled isotopomers containing a H-2(2)-label at the C-2, C-3 and C-4 positions are reported, As is the case for positions remote from the charge, the removal of a hydrogen radical at proximate positions has been found to be an initial and decisive fragmentation reaction when [M + Li](+) ions are subjected to high-energy collision-induced dissociation, It is also demonstrated that direct C-C cleavage involving gamma bonds relative to the carbonyl bond or bonds more remote from the charge may be regarded as a secondary fragmentation route, Direct C-C cleavage of the beta bond should, however, be considered as a reaction competitive with C-H cleavage in the formation of the corresponding distonic ions. (C) 1997 John Wiley & Sons, Ltd.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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Journal or Publication Title: | RAPID COMMUNICATIONS IN MASS SPECTROMETRY | ||||
Publisher: | JOHN WILEY & SONS LTD | ||||
ISSN: | 0951-4198 | ||||
Official Date: | 1997 | ||||
Dates: |
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Volume: | 11 | ||||
Number: | 16 | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 1808-1812 | ||||
Publication Status: | Published | ||||
Title of Event: | 15th Informal Meeting on Mass Spectrometry | ||||
Location of Event: | SMOLENICE, SLOVAKIA | ||||
Date(s) of Event: | MAY 12-16, 1997 |
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