Infrared spectroscopic observation of the stabilized intermediate complex FO{sub 3} formed by reaction of mobile fluorine atoms with ozone molecules trapped in an argon matrix
Chemical reaction of F atoms with O{sub 3} molecules in a solid argon matrix was studied with FTIR spectroscopy. Fluorine atoms were generated by UV photolysis of F{sub 2} molecules in dilute solutions of F{sub 2} and O{sub 3} in solid argon. The FO-O{sub 2} complex is observed for the first time as an intermediate product by reaction of mobile F atoms with isolated ozone molecules. The observed complex is characterized by two intense absorption bands at 1522 and 968 cm{sup {minus}1}. Use of isotopic mixtures {sup 16}O/{sup 18}O provides strong evidence for assignment of these bands to the O-O stretch and F-O stretch fundamentals of the complex, which are red-shifted by 34 and 61 cm{sup {minus}1}, respectively, from the corresponding values for O{sub 2} and FO. Photolysis at 532 nm leads to decay of the FO-O{sub 2} complexes and to the appearance of isolated free FO radicals.
- Research Organization:
- Univ. of Utah, Salt Lake City, UT (US)
- OSTI ID:
- 20001097
- Journal Information:
- Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory, Vol. 103, Issue 40; Other Information: PBD: 7 Oct 1999; ISSN 1089-5639
- Country of Publication:
- United States
- Language:
- English
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