Berichte der Bunsen-Gesellschaft. Physical chemistry, chemical physics

outputs DTU Orbit (07/04/2019) Isomerizations of the Nitromethane Radical Cation in the Gas Phase The concurrent isomerizations of the nitromethane radical cation to its aci-nitromethane and methylnitrite isomers, respectively, has been established based on metastable ion studies and collision activation mass spectrometry. The energy diagram for the ionized nitromethane/aci-nitromethane tautomeric system has been determined; the acinitromethane tautomer was found to be the more stable species by ca. 0. 95 eV. Attempts to generate the neutral gaseous aci-nitromethane tautomer by low pressure pyrolysis are summarized.