University of Illinois Urbana-Champaign

Additional measurements and analyses of H217O and H218O

Daly, Adam M

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1065.pdf
390855.pptx

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https://hdl.handle.net/2142/79178

Description

Title
Additional measurements and analyses of H217O and H218O
Author(s)
Daly, Adam M
Contributor(s)
  • Walters, Adam
  • Yu, Shanshan
  • Pearson, John
Issue Date
22-Jun-15
Keyword(s)
Linelists
Date of Ingest
2016-01-05T20:01:40Z
Abstract
Historically the analysis of the spectrum of water has been a balance between the quality of the data set and the applicability of the Hamiltonian to a highly non-rigid molecule. Recently, a number of different non-rigid analysis approaches have successfully been applied to $^{16}$O water resulting in a self-consistent set of transitions and energy levels to high J which allowed the spectrum to be modeled to experimental precisionfootnote{SS. Yu, J.C. Pearson, B.J. Drouin textit{et al. J. Mol. Spectrosc.} textbf{279},~16-25 (2012)}footnote{J. Tennyson, P.F. Bernath, L.R. Brown textit{et al. J. Quant. Spectrosc. Rad. Trans.} textbf{117}, 29-58 (2013)}. The data set for $^{17}$O and $^{18}$O water was previously reviewed and many of the problematic measurements identifiedfootnote{J. Tennyson, P.F. Bernath, L.R. Brown textit{et al. J. Quant. Spectrosc. Rad. Trans.} textbf{110}, 573-596 (2009)}, but Hamiltonian modeling of the remaining data resulted in significantly poorer quality fits than that for the $^{16}$O parent. As a result, we have made additional microwave measurements and modeled the existing $^{17}$O and $^{18}$O data sets with an Euler series modelfootnote{H.M. Pickett, J.C. Pearson, C.E. Miller textit{J. Mol. Spectrosc.} textbf{233}, 174-179 (2005)}. This effort has illuminated a number of additional problematic measurements in the previous data sets and has resulted in analyses of $^{17}$O and $^{18}$O water that are of similar quality to the $^{16}$O analysis. We report the new lines, the analyses and make recommendations on the quality of the experimental data sets.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
English
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http://hdl.handle.net/2142/79178

Owning Collections

Abstracts & Presentations - 2015 International Symposium on Molecular Spectroscopy PRIMARY