Direct experimental evidence for a metastable state of D/sub 2/F, an analogue of D/sub 3/O

Journal Article · Thu May 22 04:00:00 EDT 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100402a007· OSTI ID:5568983

Raksit, A B; Jeon, S J; Porter, R F

The D/sub 2/F radical has been studied by a combination of neutralized ion beam and charge stripping techniques. Neutrals formed by D/sub 2/SF/sup +//Na charge exchange are observed in metastable and dissociative states. The lifetime of metastable D/sub 2/F is greater than 0.4 ..mu..s. Metastability is not observed for HDF or H/sub 2/F. The dissociative state of D/sub 2/F releases about 1.9 eV of kinetic energy in its fragmentation products (DF + D). The vertical electron affinity of H/sub 2/F/sup +/ is calculated to be 6.6 +- 0.2 eV. The possibility of observing an emission continuum from electronically excited H/sub 2/F formed by H/sub 2/F/sup +//K charge exchange is suggested. Similarities in the mass spectra of D/sub 2/F and the isoelectronic D/sub 3/O radical are indicated.

• Research Organization: Cornell Univ., Ithaca, NY
• OSTI ID: 5568983
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:11; ISSN JPCHA
• Country of Publication: United States
• Language: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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ATOM-MOLECULE COLLISIONS
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