The microwave spectroscopy of CD3SH

Kobayashi, Kaori

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https://hdl.handle.net/2142/96933 Copy

Description

Title

The microwave spectroscopy of CD3SH

Author(s)

Kobayashi, Kaori

Contributor(s)

• Ohashi, Nobukimi
• Tsunekawa, Shozo

Issue Date

2017-06-20

Keyword(s)

• Large amplitude motions
• Internal rotation

Abstract

Methyl mercaptan (CH$_3$SH) is a sulfur-containing interstellar molecule, first identified in Sgr B2._x000d_ $footnote{R. A. Linke, M. A. Frerking, and P. Thaddeus,_x000d_ textit{Astrophys. J.} underline{textbf{234}}, L139 (1979).}$ _x000d_ Although the abundance of methyl mercaptan was not too high compared with methanol,_x000d_ the identification of CD$_3$OH towards the IRAS 16293-2422 stimulated our microwave study of CD$_3$SH._x000d_ Deuterium fractionation may be possible for the methyl mercaptan molecule._x000d_ There are many laboratory microwave spectroscopic results on the normal species _x000d_ but the studies on this isotopolog is quite limited. We have observed the spectra of CD$_3$SH in the 12-240 GHz region without gap._x000d_ The pure rotational transitions in the ground and first methyl torsional excited states were assigned. _x000d_ We applied pseudo-PAM Hamiltonian to analyze these transitions._x000d_ We will report the status of the analysis._x000d_

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/96933

DOI

https://doi.org/10.15278/isms.2017.TI05

Copyright and License Information

Copyright 2017 Kaori Kobayashi

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