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Gas‐phase synthesis and detection of the benzenediazonium ion, C 6 H 5 N 2 + . A joint atmospheric pressure chemical ionization and guided ion beam experiment
Author(s) -
Guella Graziano,
Ascenzi Daniela,
Franceschi Pietro,
Tosi Paolo
Publication year - 2005
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.2009
Subject(s) - chemistry , atmospheric pressure chemical ionization , ion , mass spectrometry , analytical chemistry (journal) , benzene , chemical ionization , atmospheric pressure , ionization , mass spectrum , ion trap , ion source , polyatomic ion , ion beam , molecule , chromatography , organic chemistry , oceanography , geology
An ion of formula C 6 H 5 N 2 +( m/z 105) has been produced by atmospheric pressure chemical ionization (APCI) of benzene and clearly detected in the corresponding positive ion mass spectrum. Its elemental composition has been established by the mass shift at m/z 110 observed when measurements were carried out with hexadeuterated benzene. MS 2 experiments performed in the ion‐trap analyzer, and guided ion beam (GIB) experiments on the reaction of the phenyl cation with nitrogen molecules, allow us to establish that the detected C 6 H 5 N 2 +ion is the benzenediazonium ion. To the best of our knowledge, this is the first report on the gas‐phase total synthesis of the benzenediazonium ion within the APCI source. Copyright © 2005 John Wiley & Sons, Ltd.