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Observation of the correlated O 3Pj1, 3Pj2 state distribution from the predissociation of O2 B 3Σ−u

✍ Scribed by David J. Leahy; Douglas R. Cyr; David L. Osborn; Daniel M. Neumark

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
918 KB
Volume
216
Category
Article
ISSN
0009-2614

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✦ Synopsis

A fast beam photofragment translational spectroscopy study of the predissociation of the O2 B %; state is presented. A 5 keV beam of vibrationally excited O2 X 'Z:; is prepared via photodetachment of OF. The B 'Z; (v'= 7) +X 'C, (~"=4) transition of the Schumann-Runge band is then excited, resulting in predissociation to two 0 'P, atoms. We determine the photofragment kinetic energy angular distribution using a time-and position-sensitive detector. Our energy resolution ( 10 meV) is sufficient to resolve the energy splittings of the 0 atom spin-orbit levels, enabling us to determine the correlated (j,, j,) fine structure distribution for the photofragments.

These results do not appear to be consistent with predictions based on a recent model of O2 B 2; state predissociation.

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