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Quenching of N 2 ( A 3 Σ u + ) by O 2 , O, N, and H
Author(s) -
Dunn O. J.,
Young R. A.
Publication year - 1976
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550080202
Subject(s) - metastability , chemistry , quenching (fluorescence) , analytical chemistry (journal) , atomic physics , physics , fluorescence , organic chemistry , quantum mechanics , chromatography
Metastable N 2 ( A 3 Σ u + ), υ = 0, υ = 1, molecules are produced by a pulsed Tesla‐type discharge of a dilute N 2 /Ar gas mixture. Rate coefficients for quenching these metastable levels by O 2 , O, N, and H were obtained by time‐resolved emission measurements of the (0, 6) and (1, 5) Vegard–Kaplan bands. In units of cm 3 /mole · sec at 300°K and with an experimental uncertainty of ±20%, these rate coefficients for N 2 ( A 3 Σu + ) are\documentclass{article}\pagestyle{empty}\begin{document}$$k_{{\rm O2}} = 2.9 \times 10^{- 12}$$\end{document}\documentclass{article}\pagestyle{empty}\begin{document}$$k_{{\rm O}} = 1.5 \times 10^{- 11}$$\end{document}\documentclass{article}\pagestyle{empty}\begin{document}$$k_{{\rm N}} = 4.8 \times 10^{- 11}$$\end{document}\documentclass{article}\pagestyle{empty}\begin{document}$$k_{{\rm H}} = 3.5 \times 10^{- 12}$$\end{document}Within the limits of error these coefficients apply to quenching N 2 ( A 3 Σ u + ) υ′ = 1 as well.