# THE $\nu_{3}$ BANDS OF NATURAL $OsO_{4}$ FROM FT-IR SPECTRUM

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 Title: THE $\nu_{3}$ BANDS OF NATURAL $OsO_{4}$ FROM FT-IR SPECTRUM Creators: Bobin, B.; Henry, L.; Valentin, A. Issue Date: 1985 Publisher: Ohio State University Abstract: The infrared spectrum of natural $OsO_{4}$ has been recorded from 930 to $985 cm^{-1}$ on the FT-IR spectrometer of the Laboratoire de Spectronomie of Paris. The resolution is $1.2 \times 10^{-3} cm^{-1}$, and the absolute calibration of single lines, around $0.2 \times 10^{-3} cm^{-1}$. Using the tensorial Hamiltonian of Moret-Bailly, developed to 5th order, we analysed the $v_{3}$ band of the 4 main isotopic species. In each case, 18 molecular constants are derived for the excited state. The scalar constants of the ground-state are also refined: $\beta^{o} =B^{0} = 0.13490 (15) cm^{-1}; \gamma^{o} = -D_{s}{^{o}} = -2.79(36) \times 10^{6} cm^{-1}$ and $\pi^{o} =1.057(95) \times 10^{-12} cm^{-1}$. Some results are summarized below.[FIGURE] Description: Author Institution: Laboratoire de Spectronomie Mol\'{e}culaire, Universit\'e de Dijon; Laboratoire de Spectronomie Mol\'eculaire, Universit\'e Paris VI; Laboratoire de Spectronomie Mol\'eAculaire, Universit\'e Paris VI URI: http://hdl.handle.net/1811/12075 Other Identifiers: 1985-FB-2