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Chemical ionization mass spectrometry studies—VII: Deuterium labeled decanes

✍ Scribed by D. F. Hunt; C. N. McEwen

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
392 KB
Volume
7
Category
Article
ISSN
1076-5174

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✦ Synopsis

CI mass spectra of the five isomeric vicinal d,-decanes have been recorded using methane and d,-methane as reagent gases. In contrast to earlier suggestions, we find that a large fraction of the alkyl fragment ions from n-decane are formed by elimination of olefins from the abundant [M -I ] ion. Only the C, and C, fragment ions are produced completely by a one-step reaction between the decanes and the methane reagent ions. Isotope exchange does not occur between the hydrocarbon and the reagent ions derived from &methane but extensive scrambling of the deuterium label in the d,-decanes does take place in the [M -I] ion.

* For the preceding paper in this series see Ref. 1.

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