Electron transfer in collisions of potassium atom with meta-fluoro-iodo-benzene
Collisions of fast alkali atoms with thermal meta-fluoro-iodo-benzene molecules were performed using the crossed molecular beam technique. The negative ions are extracted from the interaction region by a pulsed voltage and their mass selection is obtained by TOF. Apart from the parent ion C6H4IF-, the fragment ions C6H4F-, C4H3F-, C3H2F- and C2HF- are formed in the electron transfer collision. From the TOF spectra it is concluded that the fragmentation of the energy-rich ions follows two paths. Either the I atom is expelled, leaving the ring intact, or the ring is opened followed in a second step by further fragmentation.
Lobo, R. F. M, Moutinho, M. C, & Los, J. H. (1994). Electron transfer in collisions of potassium atom with meta-fluoro-iodo-benzene. Chem. Phys., 179, 179–182.