Isomeric [C3H4]+· ions: Their identification and generation in dissociative ionizations Journal Articles uri icon

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abstract

  • AbstractThe collisional activation (CA) and charge stripping (CS) mass spectra of the three [C3H4]+· isomers, allene, propyne and cyclopropene, are reported. The extent of isomerization among these ions prior to collisional excitation depends on their internal energy content, but is small. Each [C3H4]+· ion structure also can uniquely be generated via appropriate dissociative ionizations. Analysis of mixtures of [C3H4]+· (daughter) ion structures is, in general, not possible from CA and CS mass spectra alone but may be aided by appearance energy measurements.

publication date

  • January 1984