University of Illinois Urbana-Champaign

Time-domain terahertz spectroscopy(0.3 - 7.5 THz) of molecular ices of simple alcohols

McGuire, Brett A.

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https://hdl.handle.net/2142/51070

Description

Title
Time-domain terahertz spectroscopy(0.3 - 7.5 THz) of molecular ices of simple alcohols
Author(s)
McGuire, Brett A.
Contributor(s)
  • Blake, Geoffrey
  • Carroll, Brandon
  • Finneran, Ian
  • de Vries, Xander
  • Allodi, Marco A.
  • Ioppolo, Sergio
Issue Date
2014-06-17
Keyword(s)
Astronomy
Abstract
We have recently constructed a time-domain TeraHertz (THz) spectrometer for the study of molecular ices in the far-infrared. Here, we present the results of a study of amorphous and crystalline ices of simple alcohols from methanol (CH$_3$OH) through butanol (CH$_3$(CH$_2$)$_3$OH) in the region of 0.3 - 7.5 THz. We examine the effects of the length and degree of branching of the carbon chain on the observed spectra arising from the bulk, large-amplitude motions which are prominent in this spectral region. We also discuss these results in an astrochemical context: the application of these spectra to astronomical observations of interstellar ices with Herschel PACS/SPIRE and SOFIA.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Language
English
Permalink
http://hdl.handle.net/2142/51070
DOI
https://doi.org/10.15278/isms.2014.TA01
Copyright and License Information
Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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Abstracts & Presentations - 2014 International Symposium on Molecular Spectroscopy PRIMARY