Synthesis and Spectroscopic Characterization of Interstellar Candidate Ethynyl Thiocyanate: HCCSCN
Abstract This work aims to spectroscopically characterize and provide for the first time direct experimental frequencies of the ground vibrational state and two excited states of the simplest alkynyl thiocyanate (HCCSCN) for astrophysical use. Both microwave (8–16 GHz) and millimeter-wave regions (50–120 GHz) of the spectrum have been measured and analyzed in terms of Watson’s semirigid rotor Hamiltonian. A total of 314 transitions were assigned to the ground state of HCCSCN, and a first set of spectroscopic constants have been accurately determined. Spectral features of the molecule were then searched for in Sgr B2(N), NGC 6334I, G+0.693−0.027, and TMC-1 molecular clouds. Upper limits to the column density are provided.
Authors
- J. Martín‐Pintado (ORCID: https://orcid.org/0000-0003-4561-3508)
- Elena R. Alonso (ORCID: https://orcid.org/0000-0001-5816-4102)
- Brett A. McGuire (ORCID: https://orcid.org/0000-0003-1254-4817)
- Íker León (ORCID: https://orcid.org/0000-0002-1992-935X)
- V. M. Rivilla (ORCID: https://orcid.org/0000-0002-2887-5859)
- Lucie Kolesníková (ORCID: https://orcid.org/0000-0003-3567-0349)
- M. Agúndez (ORCID: https://orcid.org/0000-0003-3248-3564)
- Aran Insausti (ORCID: https://orcid.org/0000-0002-9291-1762)
- Jean‐Claude Guillemin (ORCID: https://orcid.org/0000-0002-2929-057X)
- J. Cernicharo (ORCID: https://orcid.org/0000-0002-3518-2524)
- C. Cabezas (ORCID: https://orcid.org/0000-0002-1254-7738)
- Christopher N. Shingledecker (ORCID: https://orcid.org/0000-0002-5171-7568)
- Izaskun Jiménez-Serra (ORCID: https://orcid.org/0000-0003-4493-8714)
Institutions
- Universidad de Valladolid (ES)
- Consejo Superior de Investigaciones Científicas (ES)
- University of the Basque Country (ES)
- National Radio Astronomy Observatory (US)
- Institut des Sciences Chimiques de Rennes (FR)
- Massachusetts Institute of Technology (US)
- University of Chemistry and Technology, Prague (CZ)
Publication Details
- Journal
- The Astrophysical Journal
- Published
- 2024-11-01
- DOI
- https://doi.org/10.3847/1538-4357/ad85ce
- Primary Topic
- Molecular Spectroscopy and Structure
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- Ministerio de Ciencia, Innovación y Universidades
- National Radio Astronomy Observatory
- Centre National d’Etudes Spatiales
- Korea Astronomy and Space Science Institute
- Centre National de la Recherche Scientifique
- Ministerio de Ciencia e Innovación
- National Astronomical Observatory of Japan
- Consejería de Educación, Junta de Castilla y León
- Junta de Castilla y León
- European Research Council
- Consejo Superior de Investigaciones Científicas
- National Institutes of Natural Sciences
- European Regional Development Fund
- Agencia Estatal de Investigación
- European Social Fund