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Characterization of isomeric [CH 5 P] +˙ and [C 2 H 7 P] +˙ radical cations and some [C 2 H 6 P] + phosphonium ions in the gas phase by their collisional activation spectra
Author(s) -
Weger E.,
Levsen K.,
Ruppert I.,
Burgers P. C.,
Terlouw J. K.
Publication year - 1983
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210180804
Subject(s) - ion , chemistry , ionization , crystallography , gas phase , electron ionization , analytical chemistry (journal) , organic chemistry
Collisional activation spectra were used to characterize isomeric ion structures for [CH 5 P] +˙ and [C 2 H 7 P] +˙ radical cations and [C 2 H 6 P] + even‐electron ions. Apart from ionized methylphosphane, [CH 3 PH 2 ] +˙ , ions of structure [CH 2 PH 3 ] +˙ appear to be stable in the gas phase. Among the isomeric [C 2 H 7 P] +˙ ions stable ion structures [CH 2 PH 2 CH 3 ] +˙ and [CH 2 CH 2 PH 3 ] +˙ /[CH 3 CHPH 3 ] +˙ are proposed as being generated by appropriate dissociative ionization reactions of alkyl phosphanes. At least three isomeric [C 2 H 6 ] + ions appear to exist, of which \documentclass{article}\pagestyle{empty}\begin{document}$ {\rm CH}_{\rm 3} - \mathop {\rm P}\limits^{\rm + } {\rm H = CH}_{\rm 2} $\end{document} could be identified positively.