Excitation spectrum of the chemical reaction F/sub 2/+O/sub 2/ in the red spectral range

Journal Article · Fri Jun 01 04:00:00 EDT 1984 · J. Chem. Phys.; (United States)

OSTI ID:6788301

Frei, H

A search has been made for new, low-energy pathways of the reaction F/sub 2/+O/sub 2/..-->..O/sub 2/F+F or O/sub 2/F/sub 2/ through excitation of F/sub 2/ or O/sub 2/ in an oxygen matrix with red and near infrared photons. By monitoring the product yield as a function of laser irradiation frequency, a reaction excitation spectrum of O/sub 2/+F/sub 2/ was recorded which begins at 14 500 cm/sup -1/ and extends through the entire red spectral range. It revealed two discrete absorptions O/sub 2/ /sup 1/..sigma../sup +//sub g/, v' = 1reverse arrow/sup 3/..sigma../sup -//sub g/, v'' = 0 and (O/sub 2/)/sub 2/(/sup 1/..delta../sub g/,/sup 1/..delta../sub g/)0,0 reverse arrow(/sup 3/..sigma../sup -//sub g/, /sup 3/..sigma../sup -//sub g/)0,0, and a continuous, oxygen-enhanced absorption of F/sub 2/ which is assigned to excitation to the repulsive part of the weakly bound /sup 3/Pi/sub 0/+/sub u/ state. The F/sub 2/ absorption detected in this experiment extends more than 200 nm to longer wavelengths than any electronic absorption of molecular fluorine reported so far.

• Research Organization: Laboratory of Chemical Biodynamics, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 6788301
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 80:11; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ABSORPTION SPECTRA
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUORINE
HALOGENS
MONITORING
NONMETALS
OXYGEN
PHOTOCHEMICAL REACTIONS
RADIATIONS
SPECTRA
VISIBLE RADIATION