The millimeterwave spectrum of succinonitrile

Cabezas, Carlos

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https://hdl.handle.net/2142/104569 Copy

Description

Title

The millimeterwave spectrum of succinonitrile

Author(s)

Cabezas, Carlos

Contributor(s)

• Cernicharo, Jose
• Soria, Ana Cristina
• Quintanilla, Jesús Eduardo
• Lebrón, Rosa
• Tercero, Belén
• Herrero, Victor Jose
• Doménech, José Luis
• Tanarro, Isabel
• Gallego, Juan Daniel
• Bermúdez, Celina

Issue Date

2019-06-18

Keyword(s)

Astrochemistry and astrobiology in the age of Atacama Large Millimeter/submillimeter Array (ALMA)

Abstract

Only two dinitriles, the protonated cyanogen NCCNH$^{+}$ and one isocyanonitrile, NCNC have been detected in the interstellar medium (ISM) among about 200 other compounds, despite nitriles constitute almost 20\% of the molecules observed in the interstellar medium. The lack of detections of dinitriles may be explained by the lack of accurate spectroscopic data on their rotational spectra since most of them do not present permanent dipole moment. Succinonitrile, NCCH$_{2}$CH$_{2}$CN is one of the simplest dinitriles and it could be a candidate molecule to be observed in the ISM. The rotational spectrum for succinonitrile has been previously observed in the 2-78 GHz frequency region by Jahn \textit{et al}.,\footnote{M.~K.~Jahn, J.-U.~Grabow, P.~D.~Godfrey and D.~McNaughton, \textit{Phys.Chem.Chem.Phys.}, \textbf{2014}, \textit{16}, 2100.} but these measurements were limited to the ground state. In this talk we report the study of succinonitrile and its low lying excited vibrational states using a newly built broadband Fourier transform millimeter wave spectrometer \footnote{J.~Cernicharo \textit{~et~al.,} \textit{A\&A,} \textbf{2019}.} equipped with Q-band (31.5-50 GHz) and W-band (72-116 GHz) receivers, similar to those used in the radio-telescopes. The spectrometer is well suited for high resolution emission spectroscopy of molecules of astrophysical importance.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/104569

DOI

https://doi.org/10.15278/isms.2019.TA08

Copyright and License Information

Copyright 2019 Carlos Cabezas

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