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Negative ion mass spectrometry—I: The spectra of some stabilised alkylidenetriphenyl-phosphoranes

✍ Scribed by R. G. Alexander; D. B. Bigley; J. F. J. Todd

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

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✦ Synopsis

Abstract

The 70 eV negative ion mass spectra of a series of phosphoranes exhibit significant peaks for ions resulting from skeletal rearrangements. The primary fragmentation reactions of the molecular anions, which involve reduction of the phosphorus from the penta‐ to the ter‐valent state, have been rationalised in terms of the relative stabilities of the products formed. The processes occurring are in some cases analogous to and in other cases complementary to, those previously observed in the positive ion spectra of similar compounds.

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Studies in negative ion mass spectrometry. V—A Comparison of positive a positive and negative ion mass spectra of copper(II) complexes of bidentate schiff base ligands
✍ J. G. Wilson; I. W. Fraser; J. L. Garnett; I. K. Gregor 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 443 KB

## Abstract 70 eV positive and negative ion mass spectra of a series of copper(II) Schiff base complexes have been obtained consecutively under the same ion source conditions. The characteristic feature of the negative ion spectra is their extreme simplicity relative to the corresponding positive i