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Charge stripping mass spectra: A method for identifying isomeric [C 5 H 8 ] + ˙ and [C 3 H 6 ] + ˙ ions
Author(s) -
Holmes John L.,
Terlouw Johan K.,
Burgers Peter C.,
Rye Robin T. B.
Publication year - 1980
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.1210150310
Subject(s) - ion , mass spectrum , chemistry , stripping (fiber) , ionization , cyclopropane , analytical chemistry (journal) , spectral line , propene , chemical ionization , polyatomic ion , charge (physics) , mass spectrometry , physics , materials science , ring (chemistry) , organic chemistry , astronomy , composite material , catalysis , chromatography , quantum mechanics
Abstract Charge stripping (collisional ionization) mass spectra are reported for isomeric [C 5 H 8 ] + ˙ and [C 3 H 6 ] + ˙ ions. The results provide the first method for adequately quantitatively determining the structures and abundances of these species when they are generated as daughter ions. Thus, loss of H 2 O from the molecular ions of cyclopentanol and pentanal is shown to produce mixtures of ionized penta‐1,3‐ and ‐1,4‐dienes. Pent‐1‐en‐3‐ol generates [penta‐1,3‐diene] + ˙. [C 3 H 6 ] + ˙ ions from ionized butane, methylpropane and 2‐methylpropan‐1‐ol are shown to have the [propene] + ˙ structure, whereas [cyclopropane] + ˙ is produced from ionized tetrahydrofuran, penta‐1,3‐diene and pent‐1‐yne.