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The mass spectra of some para substituted triarylphosphines and triarylphosphine oxides

✍ Scribed by Greg Marshall; Stephen Franks; Frank R. Hartley

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
240 KB
Volume
16
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

The mass spectra are reported for a series of tris(p‐alkylaryl)phosphines and the corresponding phosphine oxides. The phosphines all give [M]^+Λ™^ as the base peak except when the phenyl groups are not para substituted. For the oxides [M–H]^+^ gives the base peak with one exception for which [M]^+Λ™^ is the most abundant ion.

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Mass spectra of substituted and annelate
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✍ Leonard K. Dyall πŸ“‚ Article πŸ“… 1989 πŸ› John Wiley and Sons 🌐 English βš– 407 KB

Electron impact positive ion spectra of ten substituted or annelated benzofurazan-l-oxides are reported. While most of the molecular ions lose either NO' + NO', or NO' + CO, some also lose CO as an initial fragment. One of the fragmentation pathways for 4-methylbenzofurazan-l-oxides involves initial