Combined Millimeter Wave And Ftir Spectra Of Dn3

Woods, R. Claude

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https://hdl.handle.net/2142/116904 Copy

Description

Title

Combined Millimeter Wave And Ftir Spectra Of Dn3

Author(s)

Woods, R. Claude

Contributor(s)

• Wood, Samuel A.
• Vávra, Karel
• Urban, Stepan
• Smith, Houston H.
• Owen, Andrew N.
• Orr, Vanessa L.
• McMahon, Robert J.
• Kisiel, Zbigniew
• Kania, Patrik
• Esselman, Brian J.
• Billinghurst, Brant E.
• Amberger, Brent K.

Issue Date

2022-06-23

Keyword(s)

Fundamental physics

Abstract

We have recently observed the infrared spectrum of \chem{DN_3} at a resolution of 0.0009 \wn using the synchrotron at the Canadian Light Source between 30 and 5000 \wn at several pressures between 1 and 100 mTorr. A special heavy walled stainless steel apparatus was constructed to perform the synthesis of the highly toxic and explosive substance on site in way that met the stringent safety standards of the facility. We have also measured the millimeter wave spectrum of \chem{DN_3} at Wisconsin and at Prague covering altogether the range from 130-730 GHz. We are working toward combining all this spectral data to achieve a global eight state fit with SPFIT. While the many perturbing interactions between these lowest eight vibrational states cause somewhat less dramatic shifts than the same ones do in \chem{HN_3}, it remains a very challenging problem in spectroscopy. A substantial additional complication in this isotopologue though is the fact that it has proved to be impractical to obtain an isotopically pure sample of \chem{DN_3} because of facile H/D exchange on the walls of the absorption cells employed. This makes it desirable at least to assign the \chem{HN_3} spectrum first, so that the corresponding features can be eliminated from consideration in the \chem{DN_3} work.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116904

DOI

https://doi.org/10.15278/isms.2022.RM11

Copyright and License Information

Copyright 2022 held by the authors

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