| タイトル | A measurement of the vibrational band strength for the upsilon sub 3 band of the HO2 radical |
| 本文（外部サイト） | http://hdl.handle.net/2060/19850018625 |
| 著者（英） | Zahniser, M. S.; Stanton, A. C. |
| 著者所属（英） | Aerodyne Research, Inc. |
| 発行日 | 1985-03-01 |
| 言語 | eng |
| 内容記述 | The HO2 radicals generated in a discharge-flow system were observed with tunable diode laser absorption in the P-branch of the nu(3) vibrationall band at 1080/cm. The observed line positions agree with those calculated from the molecular constants for the nu(3) bland obtained from a previous study using laser magnetic resonance spectroscopy. The band strength was determined by observing line center absoptions when HO2 is produced in the reaction F + H2O2 yields HO2 + HF (k1) with a measured concentration of atomic fluorine and excess hydrogen peroxide. F-atom concentrations are measured by diode laser absorption of the spin-orbit transition at 404/cm. The analysis accounts for HO2 losses due to the reactions of HO2 + HO2 yields H2O2 + O2 (k3) and F + HO2 yields HF + O2 (k4). The line strength for the 6(15) 7(16) F(1) transition is 2.9 x 10 to the 21st power sq cm/molecule/cm which corresponds to a nu(3) band strength of 34 +/- 9 sq/cm(STP atm). This value is a factor of 6 lower than previous ab initio calculations. These results will be useful in assessing the feasibility of atmospheric measurements of HO2 using infrared absorption techniques. |
| NASA分類 | INORGANIC AND PHYSICAL CHEMISTRY |
| レポートNO | 85N26936
NASA-CR-175858
NAS 1.26:175858
RR-348 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/156391 |
