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UNTANGLING THE NEAR-IR HIGH RESOLUTION SPECTRUM OF THE METHYL PEROXY RADICAL

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/31179

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Title: UNTANGLING THE NEAR-IR HIGH RESOLUTION SPECTRUM OF THE METHYL PEROXY RADICAL
Creators: Dupré, Patrick; Rupper, Patrick; Wu, Shenghai; Miller, Terry A.
Issue Date: 2007
Abstract: The jet-cooled high resolution CRDS spectra of the methyl peroxy radical, ${\rm CH}_{3}{\rm OO}$ and ${\rm CD}_{3}{\rm OO}$ has been obtained for the weak $\tilde{A}\,^{2}A^{'}\leftarrow\tilde{X}\,^{2}A^{''}$ $0_{0}^{0}$ band. The rotational spectra of the isotopologue species exhibit very different structure. The hindered internal rotational involving methyl and ${\rm O}_{2}$ groups is a source of this very different structure, due to the strong dependence of the tunneling splitting upon mass through the $F$ parameter ($\sim4.4\,{\rm cm}^{-1}$ for ${\rm CD}_{3}{\rm OO}$ compared to $\sim7.0\,{\rm cm}^{-1}$ for ${\rm CH}_{3}{\rm OO}$). We will discuss the formalism in the limit of the high torsional barrier in the light of the experimental results, emphasizing the spectral resemblances and differences.
URI: http://hdl.handle.net/1811/31179
Other Identifiers: 2007-RF-10
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