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Title:VACUUM UV LABORATORY STUDY OF THE PHOTODISSOCIATION OF CS
Author(s):Xu, Zhongxing
Contributor(s):Ng, Cheuk-Yiu; Jackson, William M.; Crabtree, Kyle N.; Chang, Yih-Chung
Subject(s):Electronic structure, potential energy surfaces
Abstract:Photodissociation of carbon monosulfide (CS) in UV-dominated regions, including diffuse interstellar medium and protoplanetary regions, may produce metastable carbon and sulfur in $^1S$ and $^1D$ states, which could contribute internal energy to gas-phase chemical reactions. However, unlike its isoelectronic CO molecule, little is known about Vacuum UV (VUV) photodissociation of CS. In the present study, we investigated the $C^1\Sigma^+-X^1\Sigma^+$ band of CS. CS is generated by photolysis of CS$_2$ and then adiabatically expanded into a vacuum chamber. The two-independently-tunable-VUV photodissociation-photoionization spectroscopy coupled with velocity map imaging (VMI) detection was used to measure state-specific photodissociation cross sections and atomic state branching fractions. Our experiment is the first quantitative study of CS in the VUV spectral region.
Issue Date:06/21/18
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:Conference Paper / Presentation
Type:Text
Language:English
URI:http://hdl.handle.net/2142/100532
DOI:10.15278/isms.2018.RJ10
Other Identifier(s):RJ10
Date Available in IDEALS:2018-08-17
2018-12-12


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