FURTHER STUDIES OF POTASSIUM-BEARING MOLECULES : THE MILLIMETER-WAVE SPECTRUM OF KSH (X$^{1}$A$^{\prime}$)
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Date
2013
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Publisher
Ohio State University
Abstract
The pure rotational spectrum of KSH (X$^{1}$A$^{\prime}$) has been measured using millimeter-wave direct-absorption techniques for the first time. KSH was synthesized by the reaction of potassium vapor and H$_{2}$S in the presence of a direct current discharge. Five rotational transitions in the frequency range of 260${-300$ GHz were recorded for both KSH and KSD in their ground electronic states. The K-ladder structure indicates C$_{s}$ symmetry, and therefore a bent molecule. Accurate rotational and hyperfine constants have been determined from a global fit including previously measured microwave spectra. A comparison of KSH to other alkali metal hydrosulfides will be presented.
Description
Author Institution: Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721; Department of Chemistry, Canisius College, Buffalo, New York 14208; Department of Chemistry and Biochemistry, Department of Astronomy, and Steward Observatory, University of Arizona, Tucson, Arizona 85721