Premium
Structure of gas phase [C 5 H 6 ] + ˙ ions
Author(s) -
Flammang Robert,
Meyrant Philippe,
Maquestiau André,
Kingston Eric E.,
Bey John H.
Publication year - 1985
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.1210200316
Subject(s) - ion , dissociation (chemistry) , chemistry , mass spectrum , mass spectrometry , analytical chemistry (journal) , ionization , stripping (fiber) , chemical ionization , metastability , ionic bonding , polyatomic ion , materials science , organic chemistry , chromatography , composite material
Charge‐stripping spectra have been used to differentiate ionized cyclopentadiene from its acyclic isomers. The minimum amounts of translational energy lost during the charge‐stripping processes and the relative charge‐stripping efficiencies, which are also structurally important parameters, have been measured for these ionic species. [C 5 H 6 ] + ˙ ions, formed by dissociative ionization of various precursors in the ion source are found, usually, to be a mixture of cyclic and acyclic ions. In contrast, [C 5 H 6 ] + ˙ ions, derived from the dissociation of metastable molecular ions from a series of organic compounds, have the cyclopentadienyl structure. This structure was confirmed by collision‐induced dissociation of ions formed in the first field‐free region of a triple sector mass spectrometer.