Laser Candidate Reactions of O2F.
Abstract
Gas phase O2F radicals have been shown to be produced by the thermal decomposition of solid O2(+)AsF6(-). O2F generated in this manner exhibits a second order decay governed by a rate constant k=1.4 + or - 0.4 x 10 to the 11th power cc/mole/sec. Chemiluminescent reactions of O2F with several added gases were observed. Electronically excited halogen monofluorides in the A(3 Pi 1) and B(3 Pi 0(+)) states were produced by reactions of molecular halides with O2F or by reactions of halogen atoms with O2F in the presence of singlet molecular oxygen. The reactions of magnesium and calcium atoms with O2F produced electronically excited MgF and CaF, respectively, in several accessible excited states. The measurement of photon yields for a number of these reactions indicated that direct production of excited electronic states is not a favored mechanism. On the contrary, the dominant mechanism in the reactions studied appears to be the production of vibrationally excited diatomic fluorides. The electronically excited species responsible for the visible-UV chemiluminescence are most likely formed either by resonant interactions with highly vibrationally excited ground state molecules or by collisional V-E energy transfer. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1980
- Accession Number
- ADA111043
Entities
People
- R. D. Coombe
- R. K. Horne