Extensive ro-vibrational analysis of deuterated-cyanoacetylene (DC3N) from millimeter-wavelengths to the infrared domain

被引：3

作者：

Melosso, Mattia ^{[1
]}

Bizzocchi, Luca ^{[2
]}

Adamczyk, Aleksandra ^{[3
]}

Cane, Elisabetta ^{[3
]}

Caselli, Paola ^{[2
]}

Colzi, Laura ^{[4
]}

Dore, Luca ^{[1
]}

Giuliano, Barbara M. ^{[2
]}

Guillemin, Jean-Claude ^{[5
]}

Martin-Drumel, Marie-Aline ^{[6
]}

Pirali, Olivier ^{[6
,7
]}

Charmet, Andrea Pietropolli ^{[8
]}

Prudenzano, Domenico ^{[2
]}

Rivilla, Victor M. ^{[4
]}

Tamassia, Filippo ^{[3
]}

机构：

[1] Univ Bologna, Dipartimento Chim Giacomo Ciamician, Via F Selmi 2, I-40126 Bologna, Italy

[2] Max Planck Inst Extraterr Phys, Ctr Astrochem Studies, Giessenbachstr 1, D-85748 Garching, Germany

[3] Univ Bologna, Dipartimento Chim Ind Toso Montanari, Viale Risorgimento 4, I-40136 Bologna, Italy

[4] INAF Osservatorio Astrofis Arcetri, Largo Enrico Fermi 5, I-50125 Florence, Italy

[5] Univ Rennes, ISCR, CNRS, Ecole Natl Super Chim Rennes,UMR6226, F-35000 Rennes, France

[6] Univ Paris Saclay, Inst Sci Mol Orsay, CNRS, F-91405 Orsay, France

[7] SOLEIL Synchrotron, AILES Beamline, F-91190 Gif Sur Yvette, France

[8] Univ Ca Foscari Venezia, Dipartimento Sci Mol & Nanosistemi, Via Torino 155, I-30172 Venice, Italy

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2020年 / 254卷

基金：

欧盟地平线“2020”;

关键词：

Cyanoacetylene; Interstellar species; Ro-vibrational spectroscopy; Spectral analysis; Anharmonic resonances; Line catalog; ROTATIONAL SPECTRA; BAND; SPECTROSCOPY; INTENSITIES; HCCCN; CORES;

D O I：

10.1016/j.jqsrt.2020.107221

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Cyanoacetylene, the simplest cyanopolyyne, is an abundant interstellar molecule commonly observed in a vast variety of astronomical sources. Despite its importance as a potential tracer of the evolution of star-forming processes, the deuterated form of cyanoacetylene is less observed and less studied in the laboratory than the main isotopologue. Here, we report the most extensive spectroscopic characterization of DC3N to date, from the millimeter domain to the infrared region. Rotational and ro-vibrational spectra have been recorded using millimeter-wave frequency-modulation and Fourier-transform infrared spectrometers, respectively. All the vibrational states with energy up to 1015 cm(-1) have been analyzed in a combined fit, where the effects due to anharmonic resonances have been adequately accounted for. The analysis contains over 6500 distinct transition frequencies, from which all the vibrational energies have been determined with good precision for many fundamental, overtone, and combination states. This work provides a comprehensive line catalog for astronomical observations of DC3N. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：9

共 39 条

[1] History of the solar-type protostar IRAS 16293-2422 as told by the cyanopolyynes [J].