CHARACTERIZATION OF THE CHEMICAL IONIZATION CONDENSATION PRODUCTS FOR THE BENZYL ACETATE SYSTEM USING MASS-ANALYZED ION KINETIC-ENERGY SPECTROMETRY

The condensation products resulting from chemical ionization (isobutane reagent gas) of benzyl acetate were characterized using mass-analyzed ion kinetic energy spectrometry (MIKES). These spectra, which provide structural information often lacking in studies on ion-molecule reactions, were obtained by subjecting selected ions to collision-induced dissociation. The benzyl acetate condensation product C14H11+ (179+) was shown to have the protonated anthracene structure by the identity of its MIKE spectrum with that of the authentic ion, while the C14H13+ (181+) ion was shown to have a MIKE spectrum identical with that of the 2-benzylbenzyl cation generated from the substituted benzyl alcohol. Other ions in the series (C7H7. (C7H6)n-H2)+ as well as in the C7H7.C7H6)n)+ series gave spectra which were consistent in detail with the disubstituted phenyl and fused-ring ion structures proposed by Meot-Ner. © 1979, American Chemical Society. All rights reserved.