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Temperature dependence of the relaxation rate constants of the a 1Δg and b 1Σ +g states of oxygen isotopes

✍ Scribed by J. Plötz; Max Maier

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
497 KB
Volume
138
Category
Article
ISSN
0009-2614

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✦ Synopsis

The relaxation rate constants of the low-lying electronic singlet states, a '4 and b ' Z: , of gaseous natural O2 and of the isotope "O? were investigated as a function of temperature from 100 to 295 K. The measured increase of the rate constants with temperature is in good agreement with a theory of electronic-to-vibrational-translational energy transfer. The significant effects of the different electronic states and of the isotope masses on the absolute values of the relaxation rate constants, which range from 1.0x lo-" to 3.9x IO-" s-' molecule-' cm3 at 295 K, are discussed.

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