Nascent vibrational energy distributions of O2(X3Sigma(g)-, nu = 6-13) generated in the photolysis of O3 at 266 nm

The Journal of Physical Chemistry. a
Shinji WatanabeKatsuyoshi Yamasaki

Abstract

The vibrational levels of O2(X3Sigma(g)-) generated in the ultraviolet photolysis of O3 at 266 nm were detected via laser-induced fluorescence (LIF) of the B3Sigma(u)- - X3Sigma(g)- system. The nascent vibrational energy distributions of O2(X3Sigma(g)-, nu = 6-13) have been measured by two different methods. One is a kinetic analysis based on the originally developed integrated profiles method (IPM). The time-resolved LIF of a single vibrational level has been recorded in the presence of CF4 or O2 as a relaxation partner. The IPM analysis of the profiles gave the relative detectabilities of adjacent vibrational levels, and the initial relative populations of the vibrational levels have been determined from the intensities of LIF subsequent to the photolysis. The other is the analysis of the area intensities of the LIF of the vibrational levels of interest. The rotational levels with the identical quantum numbers of different vibrational levels in the X3Sigma(g)- state were excited to a common vibrational level nu' = 0 in the B3Sigma(u)- state. Correction for the LIF intensities with the Franck-Condon factors was made, and the initial relative populations have been obtained. The two different methods have given similar nascent v...Continue Reading

References

Apr 25, 2006·Physical Chemistry Chemical Physics : PCCP·Katsuyoshi YamasakiIkuo Tokue
Aug 10, 2007·Physical Chemistry Chemical Physics : PCCP·Shinji WatanabeKatsuyoshi Yamasaki
Jul 3, 2008·The Journal of Physical Chemistry. a·Shinji WatanabeKatsuyoshi Yamasaki

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