MICROWAVE SPECTRUM OF NS IN THE HIGHLY EXCITED VIBRATIONAL STATES

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1990

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Ohio State University

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The NS free radical in the excited vibrational states up to $v = 20$ has been detected in a hollow cathode discharge in a mixture of $CS_{2}(\sim 1 mTorr)$ and $N_{2}(\sim 40 mTorr)$ by microwave spectroscopy. This measurement extends a previous microwave measurement of the vibrationally excited NS (up to $v =5$) made by Anacona $et al^{1}$. The spectrum was recorded in the range of 75 to 385 GHZ with a microwave system equipped with a tripler-quadrupler. A least-squares analysis is being made to determine the spectroscopic constants in these high-v states

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$^{1}$ J. R. Anacona, M. Bogey, P. B. Davies, C. Demuynck, and J. L. Destombes, Mol. Phys. 59, 81(1986).
Author Institution: Herzberg Institute of Astrophysics, National Research Council of Canada, Ottawa

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