Decoding millimetre-wave spectra of 2-iminopropanenitrile, a candidate for astronomical observations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F22%3A43923986" target="_blank" >RIV/60461373:22340/22:43923986 - isvavai.cz</a>
Result on the web
<a href="https://www.aanda.org/articles/aa/full_html/2022/09/aa43696-22/aa43696-22.html" target="_blank" >https://www.aanda.org/articles/aa/full_html/2022/09/aa43696-22/aa43696-22.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202243696" target="_blank" >10.1051/0004-6361/202243696</a>
Alternative languages
Result language
angličtina
Original language name
Decoding millimetre-wave spectra of 2-iminopropanenitrile, a candidate for astronomical observations
Original language description
Aims. The recent detection of cyanomethanimine in the interstellar medium makes its methyl derivative, 2-iminopropanenitrile (CH3C(CN)NH), a promising candidate for an interstellar detection. The aim of this work is to extend the current knowledge of the laboratory rotational spectrum to higher frequencies, which is an essential prerequisite for an identification of the molecular species in the interstellar medium by millimetre-wave astronomy.Methods. The room-temperature rotational spectrum of 2-iminopropanenitrile has been measured in several frequency regions between 128 and 329 GHz. The A–E splittings of the rotational transitions arising from the methyl top internal rotation were analysed employing the ERHAM and XIAM programs.Results. A dataset of approximately 900 newly assigned rotational transitions in the ground state of the Z isomer and a set of refined molecular constants, including the internal rotation parameters, are reported. Moreover, this work provides the first spectral characterisation of the less stable E isomer ground state, as well as the three lowest-lying vibrationally excited states of the Z isomer, v21 = 1, v14 = 1, and v20 = 1. This comprehensive spectroscopic study will allow a search for 2-iminopropanenitrile in the millimetre-wave surveys of interstellar sources, such as those recorded by the Atacama Large Millimeter/submillimeter Array.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ASTRONOMY & ASTROPHYSICS
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
665
Issue of the periodical within the volume
September 2022
Country of publishing house
FR - FRANCE
Number of pages
10
Pages from-to
"A9"
UT code for WoS article
000849046800006
EID of the result in the Scopus database
2-s2.0-85138301521