1983 Volume 56 Issue 12 Pages 3748-3755
Chemiluminescences produced in the reaction of CO with active nitrogen were measured in the region from infrared to vacuum ultraviolet. The infrared emission from vibrationally excited CO was measured by means of a FTIR spectrometer. A vibrationally excited CO up to v″=18 was observed. The quenching and relaxation of vibrationally excited CO were measured by the addition of other gasses. The formation of carbon atoms was observed by the absorption of carbon resonance lines, and the recombination reaction of C+N+M→CN*+M is proposed as the mechanism of the violet and red emission of CN. The reaction of CO*(a3Π)+CO\ eweq→C+CO2 is proposed as the carbon-atom source. The emission of the fourth positive band of CO was observed in the vacuum UV region. The effect of self-absorption by the vibrationally excited CO was reduced by the addition of CO2. It is suggested that the apparent abnormal vibrational distribution in CO(A1Π) can be reduced by considering the effect of the quenching of CO(A1Π).
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