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Title:MILLIMETER-WAVE SPECTROSCOPY OF KO: ESTABLISHING THE ELECTRONIC GROUND STATE
Author(s):Burton, Mark
Contributor(s):Ziurys, Lucy M.; Bucchino, Matthew; Sheridan, Phillip M.; Russ, Benjamin
Subject(s):Radicals
Abstract:The ground electronic state of potassium monoxide (KO) has yet to be conclusively assigned, despite both experimental and theoretical investigations of this species. The ground state is either $^{2}$$\Pi$$_{i}$ (as for LiO and NaO) or $^{2}$$\Sigma$$^{+}$ (as for RbO and CsO), both of which are predicted to lie close in energy for KO. To solve this problem, we have conducted millimeter-wave direct absorption spectroscopy of KO. This species was synthesized via the reaction of potassium vapor, generated by a Broida-type oven, with nitrous oxide. We have found patterns that we have identified as the $\Omega$ = 3/2 and 1/2 ladders of a $^{2}$$\Pi$$_{i}$ state, as well as a $^{2}$$\Sigma$$^{+}$ state. Rotational and fine structure constants have been accurately determined assuming the $^{2}$$\Pi$$_{i}$ and $^{2}$$\Sigma$$^{+}$ assignments.
Issue Date:06/20/18
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:Conference Paper / Presentation
Type:Text
Language:English
URI:http://hdl.handle.net/2142/100477
DOI:10.15278/isms.2018.WD05
Other Identifier(s):WD05
Date Available in IDEALS:2018-08-17
2018-12-12


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