Rate cocfticicnts for the collisiona! quenching of Of (' a,) by NO and CO, at 2-8 torr and 300 K have been determined. X-NO = (2.48 t 0.23) X lo-" cm3 moleculc~' s-' anzkCOz = (2.56 5 0.12) X IO-" cm3 moleculc~ s-l.
Production of 1 Δg O2 from microwave discharges in CO2, NO2 and SO2
✍ Scribed by Thomas J. Cook; Terry A. Miller
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 291 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
The production of 'Ag 02 in microwave discharges in CO2 and NO2 has been confirmed by the observation of its EPR spectrum. Quantitative measurements of the EPR spectra of '4 and 3Zg O2 and 3P 0 atoms yield conver- sion efficiencies for these species. These combined measurements show that the observed 'Ag Oa is not formed by simple excitation of 3X: Oa formed in the discharge. Rather there must exist a direct mechanism for the production of 'Ag 02 from CO* and NO*_ The SO2 discharge products give rise to no 'Ag 02 EPR spectrum.
📜 SIMILAR VOLUMES
The same chemiluminescent spectrum of HNO was obtained in both the reaction systems of 0(3P) + CaHe + NO + 02 (\* A,)/02 and H + NO + 02( 'Ag)/Oa. The reaction mechanism for producing the excited HNO is proposed to be -HNO('A') + 02 ( 'Ag) + HNO(3A", + 0s (3X,) , HNOc3A") + 02 ('A,) --t HNO('A") +
In a fast flow system mixtures of SOCI 2 with helium were passed through a microwave discharge and added downstream to a flow of metastable 02 (lAg) molecules. Chemiluminescence of the SO(IAg--aZg) (0,0) band was observed at 1.705 #m in addition to the already known (0,0), (0,1), (1,1), and (2,2) ba
The rate constants for collisional quenching of Oz(b 'x:) by COz, NzO. NO, NHs\_ HCl and SOz. and of Oz(a '+.I by NO. NH3 and HCl have been measured at room tempera& by studying 'he emissions of singlet moleculx a\pg.en at 762 and 634 nm in D flowing discharge. The rate constant for deactivation of