KAA, J and MAIER, M (1993) RELAXATION OF VIBRATIONAL AND SINGLET ELECTRONIC STATES OF LIQUID AND SOLID NATURAL O2 AND O-18(2). CHEMICAL PHYSICS, 177 (1). pp. 309-319. ISSN 0301-0104,
Full text not available from this repository.Abstract
The rates for the relaxation of the vibrational state 3SIGMA(g)- (v = 1) and of the electronic singlet states a 1DELTA(g) and b 1SIGMA(g)+ of natural 02 and O-18(2) have been measured in the temperature range from 60 to 20 K. They increase with decreasing temperature in liquid ad solid oxygen. At the liquid-gamma solid transition a small decrease of the relaxation rates is observed. When solid oxygen is cooled from the orientationally disordered cubic gamma phase to the ordered rhombohedral beta phase the relaxation rates increase by about one order of magnitude at the phase transition. At the beta-alpha phase transition another increase of the relaxation rates is observed. The temperature dependence of the relaxation rates and their changes at the phase transitions are discussed applying the model of isolated binary interactions to the liquid and solid phases of oxygen.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TEMPERATURE-DEPENDENCE; ENERGY RELAXATION; OXYGEN ISOTOPES; 1-DELTA-G STATE; RAMAN-SPECTRA; CRYSTALS; DYNAMICS; GAMMA-O2; DENSITY; O-2; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53687 |
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