ELECTRON-TRANSFER IN COLLISIONS OF POTASSIUM ATOM WITH META-FLUORO-IODO-BENZENE

Citation
Rfm. Lobo et al., ELECTRON-TRANSFER IN COLLISIONS OF POTASSIUM ATOM WITH META-FLUORO-IODO-BENZENE, Chemical physics, 179(2), 1994, pp. 179-182
Citations number
8
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
ISSN journal
03010104
Volume
179
Issue
2
Year of publication
1994
Pages
179 - 182
Database
ISI
SICI code
0301-0104(1994)179:2<179:EICOPA>2.0.ZU;2-U
Abstract
Collisions of fast alkali atoms with thermal meta-fluoro-iodo-benzene molecules were performed using the crossed molecular beam technique. T he negative ions are extracted from the interaction region by a pulsed voltage and their mass selection is obtained by TOF. Apart from the p arent 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 t wo paths. Either the I atom is expelled, leaving the ring intact, or t he ring is opened followed in a second step by further fragmentation.