Mass-Spectrometric Study on Ion-Molecule Reactions of CF3+ with Nitrogen-Containing Benzene Derivatives, Pyridine, Pyrrole, and Acetonitrile at Near-Thermal Energy

Article abstract of DOI:10.1246/bcsj.68.2385

The gas-phase ion-molecule reactions of CF3⁺ with nitrogen-containing benzene derivatives (C6H5Y : Y = NH2, NO2, and CN), pyridine, pyrrole, and acetonitrile have been studied at near-thermal energy using an ion-beam apparatus.The major product channels are charge transfer for aniline (71.7 +/- 0.5), O^- abstraction for nitrobenzene (91.7 +/- 0.5percent), electrophilic addition leading to initial adducts ions for benzonitrile (97.5 +/- 0.8percent), acetonitrile (100percent), and pyridine (94.8 +/- 0.4percent), and electrophilic addition followed by HF elimination for pyrrole (80.0 +/- 1.4percent).The reaction mechanism is discussed based on product ion distributions and theoretical calculations of the energies of reaction pathways.