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Substitution reactions in the secondary ion mass spectrometry of N-methylpyridinium halides

✍ Scribed by Michiaki Yoneda; Ken Tanizaki; Kazuo Tsujimoto; Mamoru Ohashi

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
484 KB
Volume
28
Category
Article
ISSN
1076-5174

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✦ Synopsis

Secondary ion mass spectra of N-methylpyridinium halides (C'X-, where C+ is a pyridinium cation and Xis a halogen anion) exhibit the C + ions, a series of cluster ions ((C+),,(X-),,-,) and, furthermore, remarkable [ CX -R I + ions (R = H or Me). The mechanism of the formation of [ CX -R] + ions was investigated by the use of deuterated compounds and BIE and B2/E constant linked-scan measurements. A possible explanation is proposed in which the ions are produced through substitution reactions between species constituting the C,X+ cluster ions in the gas phase.

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