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Hydrogen radical/molecule reactions in the negative ion mass spectrometry of dicyano‐methane derivatives of 9‐fluorenone and benzophenone
Author(s) -
Her GuorRong,
Dolnikowski Gregory G.,
Watson J. Throck
Publication year - 1986
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.1210210606
Subject(s) - benzophenone , chemistry , fluorenone , mass spectrometry , mass spectrum , deuterium , chemical ionization , photochemistry , molecule , hydrogen , ion , methane , ionization , organic chemistry , chromatography , fluorene , physics , quantum mechanics , polymer
Hydrogen radical/molecule reactions are postulated to rationalize the formation of major fragment ions in the methane negative and positive chemical ionization mass spectrometry of the dicyanomethane derivatives of 9‐fluorenone and benzophenone. Evidence for the formation of [M + H] − anions that are not represented by significant peaks in the mass spectra is provided by mass spectra of deuterium‐labeled analogs and by tandem mass spectrometry studies of the [M + 1] − anions of the analyte.