✦ LIBER ✦

Formation of WF−6 and its dissociative products by collisional ionization

✍ Scribed by H. Dispert; K. Lacmann

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 475 KB
Volume: 45
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(77)80276-5

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✦ Synopsis

The formation of negative ions in electron transfer reactions between hyperthermal alkali atoms (Na, K) and WFe has been studied in the energy range O-30 eV c-m. Relative cross sections and translational energy thresholds for ion pair formation have been measured, from-which the following electron affinities (EA) and bond dissociation energies (D) have been derived: EA(WFc) = 3.7 eV, EA(WFs) = 1.25 eV, D (WFs -F) = 5.1 eV, D0VF5 -F-j = 5.4 eV, D(WF; -F) = 7.6 eV_ Several ion molecule reactions are discussed which result in formation of secondary fragmentation ions and WF;.

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