𝔖 Bobbio Scriptorium
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Collision free, time resolved fluorescence of SO2 excited near 2900 Å

✍ Scribed by L.E. Brus; J.R. McDonald

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
552 KB
Volume
21
Category
Article
ISSN
0009-2614

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✦ Synopsis

Two different groups of rovibronic states, having different zero pressure Lifetimes and birnolecuti quenching rates, are observed throughout the rust excited singlet. The principal group of states has unusually long (40-600 psec) collision free lifetimes, with bimolecular quenching rates and collision free lifetimes bothdecreasing to shorter excitation wavelengths. The second group has a bimoleculx quenching rate an order of magnitude above gas kinetic, and has not been observed by previous workers. A vibrational cascading non-zxponentiality effect in the decay of the principal group, first observed by Calvert and coworkers, has been confirmed. It is concluded that the unexpectedly long lifetimes and double exponential decay invalidate the conclusion of previous workers that SOL undergoes P unimolecular internal conversion.

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