SPECTROSCOPIC STUDIES OF ELECTRONIC ENERGY TRANSFER BETWEEN TRIPLET STATE $N_{2}$ AND ARGON

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1990

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Ohio State University

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A spectroscopic study of electronic energy transfer between triplet state $N_{2}$ and argon is presented. In our experiments, triplet state $N_{2}$ is produced by an adiabatic expansion of nitrogen gas in an electrical discharge. We introduce argon downstream from the discharge nozzle by a second adiabatic expansion. High resolution, UV-visible emission spectroscopy is used to interrogate the interaction region of our expansion chamber. Our spectra demonstrate argon-induced perturbations of the second positive system of triplet state $N_{2}$. Our spectra thereby provide information about the collision events and relaxation processes involving metastable $N_{2}$ and ground state argon.

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Author Institution: Department of Chemistry, Loyola University of Chicago

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