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.

9 Pages, 6 Figures, 3 Tables

References in corpus (44)

• Trigonometric Parallaxes of High Mass Star Forming Regions: the Structure and Kinematics of the Milky Way
• The Cologne Database for Molecular Spectroscopy, CDMS, in the Virtual Atomic and Molecular Data Centre, VAMDC
• Complex organic molecules in the interstellar medium: IRAM 30 m line survey of Sagittarius B2(N) and (M)
• Discovery of the Interstellar Chiral Molecule Propylene Oxide (CH${}_3$CHCH${}_2$O)
• On the reservoir of sulphur in dark clouds : chemistry and elemental abundance reconciled
• Discovery of benzyne, o-C6H4, in TMC-1 with the QUIJOTE line survey
• Complex organic molecules in the Galactic Centre: the N-bearing family
• Molecular Carbon Chains and Rings in TMC-1
• Tracing shocks and photodissociation in the Galactic center region
• Yebes 40 m radio telescope and the broad band NANOCOSMOS receivers at 7 mm and 3 mm for line surveys
• Spectral Line Identification and Modelling (SLIM) in the MAdrid Data CUBe Analysis (MADCUBA) package: An interactive software for data cube analysis
• Discovery in space of ethanolamine, the simplest phospholipid head group
• Thiols in the ISM: first detection of HC(O)SH and confirmation of C${}_2$H${}_5$SH
• TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and C4S and detection of C5S
• Prebiotic precursors of the primordial RNA world in space: Detection of NH${}_2$OH
• Abundant Z-cyanomethanimine in the interstellar medium: paving the way to the synthesis of adenine
• Laboratory and tentative interstellar detection of trans-methyl formate using the publicly available Green Bank Telescope PRIMOS survey
• ALMA Detection of Interstellar Methoxymethanol (CH${}_3$OCH${}_2$OH)
• Space and laboratory discovery of HC3S+
• First detection of interstellar S2H
• Interstellar HOCN in the Galactic center region
• Discovery of the ubiquitous cation NS+ in space confirmed by laboratory spectroscopy
• Molecular line survey of the high-mass star-forming region NGC 6334I with Herschel/HIFI and the SMA
• Probing the chemical complexity of amines in the ISM: detection of vinylamine (C${}_2$H${}_3$NH${}_2$) and tentative detection of ethylamine (C${}_2$H${}_5$NH${}_2$)
• Precursors of fatty alcohols in the ISM: Discovery of n-propanol
• The sulphur saga in TMC-1: Discovery of HCSCN and HCSCCH
• Detection of interstellar HCS and its metastable isomer HSC: new pieces in the puzzle of sulfur chemistry
• Discovery of the elusive carbonic acid (HOCOOH) in space
• First detection of C${}_2$H${}_5$NCO in the ISM and search of other isocyanates towards the G+0.693-0.027 molecular cloud
• Discovery of the elusive thioketenylium, HCCS+, in TMC-1
• The Case of H${}_2$C${}_3$O Isomers, Revisited: Solving the Mystery of the Missing Propadienone
• Detection of the cyanomidyl radical (HNCN): a new interstellar species with the NCN backbone
• First detection in space of the high-energy isomer of cyanomethanimine: H2CNCN
• Discovery of two new interstellar molecules with QUIJOTE: HCCCHCCC and HCCCCS
• Amides inventory towards the G+0.693-0.027 molecular cloud
• Aromatic cycles are widespread in cold clouds
• The spatial distribution of an aromatic molecule, C6H5CN, in the cold dark cloud TMC-1
• Discovery of thiofulminic acid with the QUIJOTE line survey: A study of the isomers of HNCS and HNCO in TMC-1
• Molecular Polymorphism: Microwave Spectra, Equilibrium Structures, and an Astronomical Investigation of the HNCS Isomeric Family
• Discovery of thionylimide, HNSO, in space: the first N-, S- and O-bearing interstellar molecule
• Discovery of five cyano derivatives of propene with the QUIJOTE line survey
• Deuterium fractionation as a multi-phase component tracer in the Galactic Centre
• Laboratory and astronomical discovery of cyanothioketene, NCCHCS, in the cold starless core TMC-1
• The first detection of SiC${}_2$ in the interstellar medium