Predissociation And Picosecond Spectroscopy Of Transient Species

D. F. Kelley; P. M. Rentzepis

doi:10.1117/12.933239

23 April 1982 Predissociation And Picosecond Spectroscopy Of Transient Species

D. F. Kelley, P. M. Rentzepis

Proceedings Volume 0322, Picosecond Lasers and Applications; (1982) https://doi.org/10.1117/12.933239
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

Predissociation and recombination kinetics of Iodine in both liquid (7°C) and fluid (19°C) Xenon have been studied by picosecond absorption spectroscopy. The results indicate lifetimes of ≈14 ps and ≈40 ps for predissociation and geminate recombination, respectively. Transient spectra of I₂/Xe and I₂/CC1₄ were also obtained, indicating the existence of a transient Iodine-solvent complex in CC1₄ that was not observed in Xenon. The kinetics of the prediss ciation of diazene compound and the spectroscopy of the resulting biradical have been studied by picosecond fluorescence spectroscopy. The data indicates diazene 2 has a lifetime of 38 ps and the singlet biradical 1S has a lifetime of approximately 280 ps. These results and the fluorescence spectrum are discussed in terms of known chemistry and theoretical calculations.

Citation Download Citation

D. F. Kelley and P. M. Rentzepis "Predissociation And Picosecond Spectroscopy Of Transient Species", Proc. SPIE 0322, Picosecond Lasers and Applications, (23 April 1982); https://doi.org/10.1117/12.933239

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