Infrared chemiluminescence studies of the reactions of oxygen (3P) atoms with carbon disulfide and carbon monosulfide

The reactions of O(3P) atoms with CS2 and CS were studied by the technique of arrested relaxation infrared chemiluminescence. Emissions from the products CS, SO, and CO were observed from the reaction O+CS2. The CO product channel of O+CS2 is shown to be active and displays a double maxima vibrational population distribution. Models are proposed to account for this population distribution. No emission from the previously reported OCS product was observed, indicating that this product channel is almost inactive with respect to energy partitioning into the stretching modes of OCS. A populuation distribution of CO from the reaction O+CS is reported and is in agreement with previously published results measured by intracavity laser techniques.