THE CHARACTERIZATION OF HOC6H4-MOLECULE REACTIONS( AND C6H5O+ IONS BYION)

Ion-molecule reactions of some isomeric [C-6,H-5,O](+) ions with metha nol, acetonitrile, acetone, benzene and toluene were studied in a trip le quadrupole mass spectrometer. The C6H5O+ ion (I) formed adducts wit h the above molecules, whereas the isomeric HOC6H4+ (II) ions reacted with methanol to give (HO)(2)C6H4+.. This reaction was diagnostic for ions of structure II. Isomers I and II also reacted differently with a cetone forming C6H5O+C3H4 and HOC6H4O+H2, respectively. No major diffe rences were found in the reactivities of ortho-, meta- and para-hydrox yphenyl ions, although the latter two produced a greater relative abun dance of adducts with toluene.