Reactive intermediates via Fourier transform mass spectrometry

Steven R Kass, Katherine M. Broadus

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

A new method for the selective preparation of radical anions in the gas phase is described. Dicarboxylate anions are generated in a Fourier transform mass spectrometer via electrospray ionization, and both carboxylates and an electron are removed to afford odd-electron anions via sequential fragmentations. Energetic measurements on these species enable the heats of formation of neutral compounds to be determined. The heats of hydrogenation of benzocyclobutadiene and acenaphthyne are used to illustrate this methodology and the antiaromaticity and/or strain energy of these molecules are discussed.

Original languageEnglish (US)
Pages (from-to)461-468
Number of pages8
JournalJournal of Physical Organic Chemistry
Volume15
Issue number8
DOIs
StatePublished - Aug 1 2002

Keywords

  • Acenaphthyne
  • Antiaromaticity
  • Benzocyclobutadiene
  • Dianions
  • Electrospray ionization
  • Energetics
  • Fourier transform mass spectrometry
  • Reactive intermediates

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