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SH stretching vibration of propanethiol ice — a signature for its identification in the interstellar icy mantles

Pavithraa, S.; Sahu, D.; Seth, G.; Lo, J.-I.; Raja Sekhar, B. N.; Cheng, B.-M.; Das, A.; Mason, N. J. and Sivaraman, B. (2017). SH stretching vibration of propanethiol ice — a signature for its identification in the interstellar icy mantles. Astrophysics and Space Science, 362(7), article no. 126.

DOI (Digital Object Identifier) Link: https://doi.org/10.1007/s10509-017-3103-2
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Abstract

Among the most commonly existing thiol molecules, methanethiol and ethanethiol were discovered in the interstellar medium and identification of the next larger thiol molecule, propanethiol, is long awaited. By simulating icy astrochemical conditions and probing propanethiol ices under infrared spectroscopy we propose the use of SH stretching vibrations observed in the propanethiol molecular ice as a probe towards its identification in the interstellar medium. Though there are conformational changes within the ice (as observed in both VUV and IR spectra), the SH stretching vibration of propanethiol is observed to be unique among the set of thiol molecules, methanethiol and ethanethiol, which enables the detection of propanethiol ice in interstellar dust mantles using the James Webb Space Telescope.

Item Type: Journal Item
Copyright Holders: 2017 Springer Science+Business Media Dordrecht
ISSN: 1572-946X
Keywords: Astrochemistry; Techniques: spectroscopic; ISM: molecules
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Physics
Item ID: 51386
Depositing User: Stephen Serjeant
Date Deposited: 06 Oct 2017 09:59
Last Modified: 07 Dec 2018 10:57
URI: http://oro.open.ac.uk/id/eprint/51386
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