Line intensity measurements and analysis in the ν3 band of ruthenium tetroxide

Vander Auwera, Jean

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https://hdl.handle.net/2142/100786 Copy

Description

Title

Line intensity measurements and analysis in the ν3 band of ruthenium tetroxide

Author(s)

Vander Auwera, Jean

Contributor(s)

• Manceron, Laurent
• Doizi, Denis
• Boudon, Vincent
• Reymond-Laruinaz, Sébastien

Issue Date

2018-06-20

Keyword(s)

Small molecules

Abstract

Ruthenium tetroxide (RuO4) is a heavy tetrahedral molecule characterized by an unusual volatility near ambient temperature. Because of its chemical toxicity and the radiological impact of its 103Ru and 106Ru isotopologues, the possible remote sensing of this compound in the atmosphere has renewed interest in its spectroscopic properties. In a recent study, the strong fundamental band associated with the excitation of the infrared active stretching mode ν3 of 102Ru16O4, observed near 10 µm, was re-investigated at high-resolution (0.001 cm−1 ) with the help of a 102Ru isotopically pure sample.a Building upon that work, the present contribution is the first investigation dealing with high-resolution line-by-line intensity measurements for the ν3 fundamental band of 102Ru16O4. It relies on high resolution Fourier transform infrared spectra specifically recorded at room temperature at the AILES beam line of SOLEIL using synchrotron radiation, a specially constructed cell and an isotopically pure sample of 102Ru16O4. Relying on an effective Hamiltonian and associated effective dipole moment,a the measured line intensities were assigned and dipole moment parameters determined. A HITRAN-formatted frequency and intensity line list was generated.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/100786

DOI

10.15278/isms.2018.WH08

Copyright and License Information

Copyright 2018 Jean Vander Auwera

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