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Title: Millimeter-wave and Submillimeter-wave Spectra of Aminoacetonitrile in the Three Lowest Vibrational Excited States

Abstract

It is important to study possible precursors of amino acids such as glycine to enable future searches in interstellar space. Aminoacetonitrile (NH{sub 2}CH{sub 2}CN) is one of the most feasible molecules for this purpose. This molecule was already detected toward Sgr B2(N). Aminoacetonitrile has a few low-lying vibrational excited states, and transitions within these states may be found in space. In this study, the pure-rotational transitions in the three lowest vibrational states in the 80–450 GHz range have been assigned and analyzed. It was found to be very important to include Coriolis coupling between the two lowest vibrational fundamentals, while the third one was unperturbed. The partition function was evaluated considering these new results.

Authors:
; ;  [1];  [2]; ;  [3]
  1. Dipartimento di Chimica “Giacomo Ciamician”, Università di Bologna, via Selmi 2, I-40126 Bologna (Italy)
  2. Department of Physics, Faculty of Science, University of Toyama, 3190 Gofuku, Toyama 930-8555 (Japan)
  3. Department of Environmental Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, 274-8510 (Japan)
Publication Date:
OSTI Identifier:
22661115
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal, Supplement Series; Journal Volume: 230; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACETONITRILE; AMINES; COUPLING; GHZ RANGE; GLYCINE; INTERSTELLAR SPACE; MOLECULES; PARTITION FUNCTIONS; VIBRATIONAL STATES

Citation Formats

Esposti, Claudio Degli, Dore, Luca, Melosso, Mattia, Kobayashi, Kaori, Fujita, Chiho, and Ozeki, Hiroyuki, E-mail: ozeki@env.sci.toho-u.ac.jp. Millimeter-wave and Submillimeter-wave Spectra of Aminoacetonitrile in the Three Lowest Vibrational Excited States. United States: N. p., 2017. Web. doi:10.3847/1538-4365/AA7335.
Esposti, Claudio Degli, Dore, Luca, Melosso, Mattia, Kobayashi, Kaori, Fujita, Chiho, & Ozeki, Hiroyuki, E-mail: ozeki@env.sci.toho-u.ac.jp. Millimeter-wave and Submillimeter-wave Spectra of Aminoacetonitrile in the Three Lowest Vibrational Excited States. United States. doi:10.3847/1538-4365/AA7335.
Esposti, Claudio Degli, Dore, Luca, Melosso, Mattia, Kobayashi, Kaori, Fujita, Chiho, and Ozeki, Hiroyuki, E-mail: ozeki@env.sci.toho-u.ac.jp. Thu . "Millimeter-wave and Submillimeter-wave Spectra of Aminoacetonitrile in the Three Lowest Vibrational Excited States". United States. doi:10.3847/1538-4365/AA7335.
@article{osti_22661115,
title = {Millimeter-wave and Submillimeter-wave Spectra of Aminoacetonitrile in the Three Lowest Vibrational Excited States},
author = {Esposti, Claudio Degli and Dore, Luca and Melosso, Mattia and Kobayashi, Kaori and Fujita, Chiho and Ozeki, Hiroyuki, E-mail: ozeki@env.sci.toho-u.ac.jp},
abstractNote = {It is important to study possible precursors of amino acids such as glycine to enable future searches in interstellar space. Aminoacetonitrile (NH{sub 2}CH{sub 2}CN) is one of the most feasible molecules for this purpose. This molecule was already detected toward Sgr B2(N). Aminoacetonitrile has a few low-lying vibrational excited states, and transitions within these states may be found in space. In this study, the pure-rotational transitions in the three lowest vibrational states in the 80–450 GHz range have been assigned and analyzed. It was found to be very important to include Coriolis coupling between the two lowest vibrational fundamentals, while the third one was unperturbed. The partition function was evaluated considering these new results.},
doi = {10.3847/1538-4365/AA7335},
journal = {Astrophysical Journal, Supplement Series},
number = 2,
volume = 230,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}