Nonequilibrium Excitation of C2 Radicals during the Thermal Decomposition of C3 O2 behind Shock Waves
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J. Deppe
C2 concentrations and populations of the ground and the first excited vibrational levels of electronically excited C2(d3Π) radicals during the thermal decomposition of C3O2 behind shock waves were monitored by emission and absorption measurements in the (0-0) and the (1-0) Swan-bands. Experiments were carried out in mixtures of 1% C3O2+Ar and 1% C3O2+He at T=2100–3200 K and p=1.5–7.5 bar. In the whole range of conditions studied an essential nonequlilibrium of electronic and vibrational states of nascent C2 radicals was observed. For analyzing possible formation and consumption reactions of the excited C2 radicals, a convenient kinetic scheme of the C3O2 decomposition was developed, which considers both the recombinative pumping process and exchange and quenching reactions of the C2(d3Π, v=0, 1) states.
Artikel in diesem Heft
- Detailed Kinetic Investigation of the C2H5+Cl2 Reaction and Analysis of the Reaction of CH3+Cl2 Initiated by H-Atom Contamination at 298K and at Millitorr Pressures
- The Rate Constant for the Recombination Reaction Between CF3 and O2 Measured Between 2 and 110 Torr
- Spectrally Resolved Phosphorescence and Slow Fluorescence from Selected Vibronic Levels of Jet-Cooled Glyoxal
- Delayed Excimer Fluorescence of Fluoranthene Due to Triplet-Triplet Annihilation: Systematic Study of the Fluorescence from a Weakly Bound Excimer
- Ab Initio Studies of Complexes of HO2 Radicals with NH3, H2O, and HF
- Linear Triplet SiC3 and SiC5: Results of Coupled Cluster Calculations
- Splitting of the Zero Phonon Lines of Indole, 3-Methyl Indole, Tryptamine and N-Acetyl Tryptophan Amide in Helium Droplets
- Nonequilibrium Excitation of C2 Radicals during the Thermal Decomposition of C3 O2 behind Shock Waves
- Book Reviews
Artikel in diesem Heft
- Detailed Kinetic Investigation of the C2H5+Cl2 Reaction and Analysis of the Reaction of CH3+Cl2 Initiated by H-Atom Contamination at 298K and at Millitorr Pressures
- The Rate Constant for the Recombination Reaction Between CF3 and O2 Measured Between 2 and 110 Torr
- Spectrally Resolved Phosphorescence and Slow Fluorescence from Selected Vibronic Levels of Jet-Cooled Glyoxal
- Delayed Excimer Fluorescence of Fluoranthene Due to Triplet-Triplet Annihilation: Systematic Study of the Fluorescence from a Weakly Bound Excimer
- Ab Initio Studies of Complexes of HO2 Radicals with NH3, H2O, and HF
- Linear Triplet SiC3 and SiC5: Results of Coupled Cluster Calculations
- Splitting of the Zero Phonon Lines of Indole, 3-Methyl Indole, Tryptamine and N-Acetyl Tryptophan Amide in Helium Droplets
- Nonequilibrium Excitation of C2 Radicals during the Thermal Decomposition of C3 O2 behind Shock Waves
- Book Reviews
