Absolute rate constant determinations for the deactivation of O(1D) by time resolved decay of O(1D) →O(3P) emission
Abstract
Absolute rate constants for the deactivation of O(1D) atoms by some atmospheric gases have been determined by observing the time resolved emission of O(1D) at 630 nm. O(1D) atoms were produced by the dissociation of ozone via repetitive laser pulses at 266 nm. Absolute rate constants for the relaxation of O(1D) (×10-10 cm3 molecule-1ṡs-1) by N2(0.30±0.01), O2(0.41±0.05), CO2(1.2±0.09), O3(2.4±0.1), H2(1.3±0.05), D2(1.3±0.05), CH4(1.3±0.3), HCl(1.4±0.3), NH3 (3.4±0.3), H2O(2.1±1.0), N2O(1.4±0.1), and Ne (<0.0013) are reported at 298 K. The results obtained are compared with previous relative and absolute measurements reported in the literature.
- Publication:
-
Journal of Chemical Physics
- Pub Date:
- January 1976
- DOI:
- 10.1063/1.431910
- Bibcode:
- 1976JChPh..64...57D
- Keywords:
-
- Atmospheric Chemistry;
- Heavy Water;
- Laser Applications;
- Molecular Relaxation;
- Ozone;
- Reaction Kinetics;
- Deactivation;
- Decay Rates;
- Gas Dissociation;
- Photodissociation;
- Photolysis;
- Pulsed Lasers;
- Secondary Emission;
- Solid State Lasers;
- Yag Lasers;
- Nuclear and High-Energy Physics;
- 82.20.Rp;
- 82.20.Pm;
- State to state energy transfer;
- Rate constants reaction cross sections and activation energies