6H4+ and C6H5O+ ions by ionmolecule reactions



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Eur. J. Mass Spectrom. 2, 341 - 345 (1996)

The characterization of HOC6H4+ and C6H5O+ ions by ionmolecule reactions

Dmitri V. Zagorevskii and John L. Holmes*
Chemistry Department, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5.
John A. Stone
Department of Chemistry, Queen's University, Kingston, Ontario, CanadaK7L 3N6.

ABSTRACT:
Ionmolecule reactions of some isomeric [C6,H5,O]+ ions with methanol, acetonitrile, acetone, benzene and toluene were studied in a triple quadrupole mass spectrometer. The C6H5O+ion (I) formed adducts with the above molecules, whereas the isomeric HOC6H4+(II) ions reacted with methanol to give (HO)2C6H4+".This reaction was diagnostic for ions of structure II. Isomers I and II also reacted differently with acetone forming C6H5O+C3H4 and HOC6H4O+H2, respectively. No major differences were found in the reactivities of ortho-, meta- and para-hydroxyphenyl ions, although the latter two produced a greater relative abundance of adducts with toluene.

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