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The rotational spectrum of and above 1 THz
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10.1063/1.3034741
/content/aip/journal/jcp/129/22/10.1063/1.3034741
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/22/10.1063/1.3034741

Figures

Image of FIG. 1.
FIG. 1.

Band head of the branch of (a) HSOH and (b) its isotopolog . In each case the experimental spectrum is depicted in the upper trace, while a calculated spectrum based on the molecular parameters of the final data analysis is plotted in the lower trace. Each transition is split by two effects: (i) the torsional splitting due to the internal rotation in HSOH and (ii) the splitting due to the internal asymmetry of the molecule. The assignment of each transition to the corresponding torsional component is given. The asymmetry splitting of individual transitions is clearly seen for transitions with .

Image of FIG. 2.
FIG. 2.

Fortrat diagram of (a) HSOH and its isotopolog (b) . Experimentally assigned lines are marked by circles [gray (Ref. 1) and black (this work)]. The blow-ups in the lower traces show the details of the -band center regions at 1.308 THz.

Image of FIG. 3.
FIG. 3.

The observed -type transitions of the branch indicate a torsional splitting of 106 MHz.

Image of FIG. 4.
FIG. 4.

Torsional splitting for - and -type transitions of the branches are plotted for . To the right of each diagram the values given in Ref. 12 are indicated, whereas the revised values given in this work are shown on the left. Experimentally assigned transitions are marked by circles.

Image of FIG. 5.
FIG. 5.

The intensity of the branch of HSOH was reinvestigated. In (a) the experimental spectrum and a calculated spectrum (based on the constants of the final data analysis) are compared. In (b) and (c) calculated spectra of the - and -type transitions, respectively, are shown separately. In order to get the best agreement between the experimental and calculated spectra, the intensity ratio has been adjusted to the value of 0.58. The assignment of individual transitions is given via the corresponding Fortrat diagrams.

Tables

Generic image for table
Table I.

Ground state molecular parameters (MHz) of and .

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Table II.

Experimental tunneling splittings of transitions (in MHz).

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Table III.

Observed and calculated internal rotation splittings (MHz) for energy levels with .

Generic image for table
Table IV.

Experimental intensity ratios of - and -type transitions in the branches .

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/content/aip/journal/jcp/129/22/10.1063/1.3034741
2008-12-12
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The rotational spectrum of HS32OH and HS34OH above 1 THz
http://aip.metastore.ingenta.com/content/aip/journal/jcp/129/22/10.1063/1.3034741
10.1063/1.3034741
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