Abstract
Neutralization-reionization mass spectrometry (NRMS) involves the production and analysis of neutral species inside the mass spectrometer. The neutrals are formed by charge exchange or dissociation of mass-selected ions and subsequently reionized for mass-analysis and detection. This method can be particularly useful for the characterization of ion structures, as shown here for C2H7O+ isomers. NRMS enables the study of highly reactive or marginally stable molecules in the gas phase, by forming them via neutralization of the corresponding stable cations or anions; for example, unusual biradical intermediates, such as ·CH2CH2OCH2·, can be generated from readily available distonic ions.By allowing the detection and identification of neutral products from ion fragmentations,NRMS also provides unique mechanistic and molecular structure information.
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