# INFRARED STUDIES ON VIBRATIONALLY EXCITED $H_{3}^{+}$

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 Title: INFRARED STUDIES ON VIBRATIONALLY EXCITED $H_{3}^{+}$ Creators: Xu, L. W.; Bawendi, Moungi; Rehfuss, B. D.; Gabrys, C. M.; Oka, T. Issue Date: 1989 Publisher: Ohio State University Abstract: Recently $Watson^{1}$ Identified the $2_{v2} (\ell=2)\rightarrow 0$ overtone emission-band of $H_{3}^{+}$ in a Fourier transform infrared spectrum discovered by astronomers in $Jupiter.^{2}$ In order to better understand the spectrum we are extending our earlier studies to more observation of hot bands and overtone bands. A difference frequency spectrometer using a $LiI0_{3}$ crystal as the non-linear optical element is used to cover the wide wavelength region of $2\sim 5.5 \mu m$. A liquid-nitrogen cooled $H_{2}$-He plasma is used to produce vibrationally hot $H_{3}^{+}$. The observatian and analysis of the spectrum based on the first principle calculation of Miller and Tennyson will be reported. Description: $^{1}$ J.K.G. Watson, private communication $^{2}$ J.P. Maillard and Drossart, CFHT Bulletin 20, 13 (1989) $^{3}$ M.G. Bawendi, B.D. Rehfuss, and T. Oka, this Symposium, 1988 $^{4}$ S. Miller and J. Tennyson, private communication Author Institution: Department of Chemistry and Department of Astronomy and Astrophysics, The University of Chicago; AT\&T Bell Laboratories, Murry Hill, New Jersey 07974 URI: http://hdl.handle.net/1811/17843 Other Identifiers: 1989-RA-3