Reaction of ammonia with accelerated benzoyl ions under multiple-collison conditions in a triple quadrupole instrument
作者:Earl L. White、Jean-Claude Tabet、Maurice M. Bursey
DOI:10.1002/oms.1210220304
日期:1987.3
AbstractThe reaction of benzoyl ion with ammonia in multiple‐collision conditions in the second quadrupole assembly of a triple quadrupole mass spectrometer at (laboratory) ion kinetic energies from 0 to 20 eV produced the even‐electron ions [C6H5]+, [C6H5NH3·(NH3)m]+ (m = 0, 1) and [C6H5CONH3·(NH3)n]+ (n = 0, 1, 2, 3) and the odd‐electron ions [C6H4NH3·(NH3)p]+· (p = 0, 1). Thermochemical information could not be obtained under multiple‐collision conditions: both exothermic and endothermic reactions were observed, with no translational‐energy onset measurable for the endothermic processes, nor decrease in the yield of the exothermic processes at high energies. The behaviour of cluster‐ion intensities as pressure varied was qualitatively as expected. There are pressure and energy regions where spectra change little; if this feature were to be general, it would point to some utility for these conditions in qualitative analysis.