| Popis: |
Neutralization reionization mass spectrometry (NRMS) experiments were carried out with [CH 5 ] + , [CD 5 ] + , and [CD 4 H] + ions of 8 keV translational energy using a variety of neutralization and reionization target gases. Careful analysis of the spectra showed that, contrary to earlier reports, (meta)stable CH · 5 (and isotopomer) species were not generated by charge transfer neutralization of the fast ions beams. Kinetic energy spectra of ionic fragments from collisions between [CD 5 ] + ions of 9.9 keV kinetic energy and O 2 target gas were used to study the dissociative states of the [CD 5 ] + and [CD 5 ] 2+ ions. Metastable high-Rydberg species arising from 9.9 keV [CD 5 ] + /He collisions were selectively field ionized and the kinetic energy spectra of the resulting ions obtained. Mechanisms for the generation of the high-Rydberg fragments were established. |
