✦ LIBER ✦

Electron-impact fragmentation of pentafluorophenyl- and pentafluorophenylalkyldimethylsilanes

✍ Scribed by C. F. Poole; E. D. Morgan; N. Pacey

Book ID: 102553009
Publisher: John Wiley and Sons
Year: 1975
Tongue: English
Weight: 351 KB
Volume: 10
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210101217

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✦ Synopsis

Abstract

The mass spectra of pentafluorobenzyl‐ and pentafluorophenylethylsilanes show cleavage to give cyclic fluorohydrocarbon ions of the tropylium type, which, with their fragmentation products, are the principal charge carrying species. In pentafluorophenyldimethylsilanes, exchange of fluorine and methyl between silicon and carbon occurs readily, and again the spectrum is dominated by cyclic fluorohydrocarbon ions. The composition and relative intensities of characteristic ions of diagnostic value in the spectra of pentafluorophenyldimethylsilanes are listed.

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