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CN(A-X,B-X) chemiluminescence in the reaction of C/sup +/(/sup 2/P) with N/sub 2/O at thermal energy

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j100408a034· OSTI ID:5333340
The thermal-energy ion-molecule reaction C/sup +/(/sup 2/P) + N/sub 2/O ..-->.. CN/sup */ + NO/sup +/ has been studied by observing CN(A-X,B-X) chemiluminescence in a flowing afterglow. The CN(A-X) emission from nu' = 2-13 was identified in the 470-800-nm region, while the CN(B-X) emission produced exclusively from rotational perturbation between CN(A:nu' = 10) and CN(B:nu' = 0) was observed in the 386-422-nm region. The branching ratios for the two chemiluminescent reactions, CN(A-X,B-X) and CO/sup +/(A-X), in the C/sup +/ + N/sub 2/O reaction were estimated to be 0.62 +/- 0.04 and 0.38 +/- 0.03, respectively. The vibrational distribution of CN(A) was found to peak at nu' = 5 and the average fraction of vibrational energy deposited into CN(A) was estimated to be 0.31 +/- 0.03. The specific formation of CN(A) could be explained in terms of adiabatic correlation diagram.
Research Organization:
Kyushu Univ., Fukuoka, Japan
OSTI ID:
5333340
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:17; ISSN JPCHA
Country of Publication:
United States
Language:
English