| Autor: |
F I Vilesov, A M Pravilov, V A Elokhin, A S Kozlov, V S Ivanov |
| Rok vydání: |
1978 |
| Předmět: |
|
| Zdroj: |
Soviet Journal of Quantum Electronics. 8:355-359 |
| ISSN: |
0049-1748 |
| DOI: |
10.1070/qe1978v008n03abeh010019 |
| Popis: |
Measurements were made of the absorption coefficients of RI=CF3I, C3F7I, CF3CFICF3, and CF3OCF2CF2I in the 120–320 nm spectral range. Investigations were made of the photodissociation processes of CF3OCF2CF2I at λ=254 nm and of the spectral dependences of the main photodissociation processes of RI in the first two vacuum ultraviolet (VUV) bands (155–175 nm). The photodissociation of CF3OCF2CF2I at λ=254 nm with the quantum efficiency Φ1*=1.0−0.05 produced iodine atoms in the first excited state. The main photodecomposition processes of RI in the first VUV band (~160–175 nm) were the predissociation reactions of RI to form R and I(2P3/2) with Φ1=0.76±0.09 (C3F7I) and 1.0±0.1 (CF3I). In the second VUV band the main mechanism of degradation of the excitation energy, at least for the perfluoropropyl iodides, were nonradiative internal conversion processes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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