# INFRARED SPECTROSCOPY IN AN $N_{2}/H_{2}$/He DISCHARGE: 3) OBSERVATION OF THE $v_{2}+v_{3}\leftarrow v_{2}$ BAND OF $NH_{3}^{+}$.

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 Title: INFRARED SPECTROSCOPY IN AN $N_{2}/H_{2}$/He DISCHARGE: 3) OBSERVATION OF THE $v_{2}+v_{3}\leftarrow v_{2}$ BAND OF $NH_{3}^{+}$. Creators: Huet, T. R.; Kabbadj, Y.; Gabrys, C. M. Issue Date: 1992 Publisher: Ohio State University Abstract: A difference frequency laser spectrometer along with velocity modulation detection was used to record the spectrum, between 3500 and $2900 cm^{-1}$, of an AC glow discharge with a gas mixture of $N_{2}/H_{2}$/He. Although the gas mixture was choosen to optimize the $NH_{2}^{+}$ signals, several ammonia cation lines are also present in the spectrum. Our observation of the $v_{2}+v_{3}\leftarrow v_{2}$ band is to be added to the previous studies of the $v_{3}\leftarrow 0$ and $v_{2}\leftarrow 0$ $bands ^{1-2}$ of $NH_{3}^{+}$. The results of our analysis will be presented. Our attempt to identify the $v_{3}+v_{4}\leftarrow v_{4}$ band will also be reported. Description: $^{1}$ M.G. Bawendi, B.D. Rehfuss, B.M. Dinelli, M. Okumura and T. Oka. J. Chem. Phys. 90 , 5910 (1989). $^{2}$ S.S. Lee and T. Oka, J. Chem. Phys. 94 , 1698 (1991). Author Institution: Department of Chemistry and Department of Astronomy and Astrophysics, The University of Chicago URI: http://hdl.handle.net/1811/12700 Other Identifiers: 1992-MF-12