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Ionic dissociation of CsBr induced by collisions with Hg: molecular-ion formation

✍ Scribed by V.M. Akimov; L.V. Lenin; L.Yu. Rusin

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 349 KB
Volume: 180
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(91)85006-i

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✦ Synopsis

The molecular complex formation (CF) reaction Hg+CsBr+HgCs+ +Br-, competitive to the collision-induced dissociation (CID) Hg+ CsBr+Hg +Cs+ + Br-was studied in crossed molecular beams. The rotatable mass-spectrometer detector made it possible to measure the branching ratio CID/CF in the translation energy range between 5.2-7.9 eV, as well as the angular and energy distributions of positive ions. The branching ratio is an order of magnitude greater than for the Xe+CsBr reaction. HgCs+ ions were found only to backscatter. A 2D impulsive mode1 shows two distinct reactive geometric configurations, which both lead to backscattering. The key role of the internal molecular motion is also predicted by the impulsive model.

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