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application/vnd.openxmlformats-officedocument.presentationml.presentation ![]() | Presentation | Microsoft PowerPoint 2007 |
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Description
Title: | Additional measurements and analyses of H217O and H218O |
Author(s): | Daly, Adam M |
Contributor(s): | Walters, Adam; Yu, Shanshan; Pearson, John |
Subject(s): | Linelists |
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. |
Issue Date: | 22-Jun-15 |
Publisher: | International Symposium on Molecular Spectroscopy |
Citation Info: | ACS |
Genre: | Conference Paper / Presentation |
Type: | Text |
Language: | English |
URI: | http://hdl.handle.net/2142/79178 |
Date Available in IDEALS: | 2016-01-05 |