The perspectives opened by modern ground-based infrared facilities and the forthcoming James Webb Telescope mission have brought a great attention to the rovibrational spectra of simple interstellar molecules. In this view, and because of the lack of accurate spectroscopic data, we have investigated the infrared spectrum of deuterated cyanoacetylene (DC3N), a relevant astrochemical species. The ]1, ]2, and ]3 fundamentals as well as their hot-bands were observed in the stretching region (1,500–3,500 cm−1) by means of a Fourier transform infrared spectrometer. Supplementary measurements were performed at millimeter-wavelengths (243–295 GHz) with a frequency-modulation spectrometer equipped with a furnace, that allowed to probe pure rotational transitions in the investigated stretching states. Furthermore, since HC3N is observed as by-product in our spectra and suffers from the same deficiency of accurate infrared data, its rovibrational features have been analyzed as well. The combined analysis of both rotational and ro-vibrational data allowed us to determine precise spectroscopic constants that can be used to model the infrared spectra of DC3N and HC3N. The importance of accurate molecular data for the correct modeling of proto-planetary disks and exoplanetary atmospheres is then discussed.

High-Resolution Infrared Spectroscopy of DC3N in the Stretching Region / Ningjing Jiang, Mattia Melosso, Filippo Tamassia, Luca Bizzocchi, Luca Dore, Elisabetta Canè, Davide Fedele, Jean-Claude Guillemin, Cristina Puzzarini. - In: FRONTIERS IN ASTRONOMY AND SPACE SCIENCES. - ISSN 2296-987X. - STAMPA. - 8:(2021), pp. 656295.1-656295.8. [10.3389/fspas.2021.656295]

High-Resolution Infrared Spectroscopy of DC3N in the Stretching Region

Ningjing Jiang;Mattia Melosso
;
Filippo Tamassia;Luca Bizzocchi;Luca Dore;Elisabetta Canè;Cristina Puzzarini
2021

Abstract

The perspectives opened by modern ground-based infrared facilities and the forthcoming James Webb Telescope mission have brought a great attention to the rovibrational spectra of simple interstellar molecules. In this view, and because of the lack of accurate spectroscopic data, we have investigated the infrared spectrum of deuterated cyanoacetylene (DC3N), a relevant astrochemical species. The ]1, ]2, and ]3 fundamentals as well as their hot-bands were observed in the stretching region (1,500–3,500 cm−1) by means of a Fourier transform infrared spectrometer. Supplementary measurements were performed at millimeter-wavelengths (243–295 GHz) with a frequency-modulation spectrometer equipped with a furnace, that allowed to probe pure rotational transitions in the investigated stretching states. Furthermore, since HC3N is observed as by-product in our spectra and suffers from the same deficiency of accurate infrared data, its rovibrational features have been analyzed as well. The combined analysis of both rotational and ro-vibrational data allowed us to determine precise spectroscopic constants that can be used to model the infrared spectra of DC3N and HC3N. The importance of accurate molecular data for the correct modeling of proto-planetary disks and exoplanetary atmospheres is then discussed.
2021
High-Resolution Infrared Spectroscopy of DC3N in the Stretching Region / Ningjing Jiang, Mattia Melosso, Filippo Tamassia, Luca Bizzocchi, Luca Dore, Elisabetta Canè, Davide Fedele, Jean-Claude Guillemin, Cristina Puzzarini. - In: FRONTIERS IN ASTRONOMY AND SPACE SCIENCES. - ISSN 2296-987X. - STAMPA. - 8:(2021), pp. 656295.1-656295.8. [10.3389/fspas.2021.656295]
Ningjing Jiang, Mattia Melosso, Filippo Tamassia, Luca Bizzocchi, Luca Dore, Elisabetta Canè, Davide Fedele, Jean-Claude Guillemin, Cristina Puzzarini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/841969
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