Using a crossed molecular-beam technique, electron transfer is studied in collisions of fast potassium atoms with benzene and fluorobenzene molecules. The negative fragment ions formed in the collision region are extracted by a pulsed voltage, and their masses and energy release distributions analyzed by a time-of-flight (TOF) method. The dominant fragment from C6H5F is F¯. The phenyl ring fragments CH¯ and C2H¯ are also observed but with lower intensities. In the case of C6H6 the dominant anionic specie is C2H¯. The kinetic-energy release distributions of the various fragments are derived from the width and shapes of the TOF peaks in the spectrum.

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Persistent URL dx.doi.org/10.1063/1.2161217
Journal J. Chem. Phys.
Citation
Limão-Vieira, P, Moutinho, M. C, & Los, J. H. (2006). Dissociative ion-pair formation in collisions of fast potassium atoms with benzene and fluorobenzene. J. Chem. Phys., 124(Article number: 54306), 1–10. doi:10.1063/1.2161217