J/A+A/601/A2 Triple 13C-substituted ethyl cyanide (Pienkina, 2017)
The millimeter and sub-millimeter rotational spectrum of triple
13C-substituted ethyl cyanide.
Pienkina A.O., Margules L., Motiyenko R.A., Mueller H.S.P., Guillemin J.-C.
<Astron. Astrophys. 601, A2 (2017)>
=2017A&A...601A...2P 2017A&A...601A...2P (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics
Keywords: molecular data - submillimeter: ISM - ISM: molecules -
techniques: spectroscopic - line: identification -
methods: laboratory: molecular
Abstract:
A recently published astronomical detection of all three doubly
13C-substituted ethyl cyanides toward Sgr B2(N2) motivated us to
investigate triple 13C isotopic species that are expected to be also
present in the ISM.
We aim to present an experimental study of the rotational spectrum of
triple 13C-substituted ethyl cyanide, 13CH3 13CH2 13CN, in
the frequency range 150-990GHz. We want to use the determined
spectroscopic parameters for searching for 13CH3 13CH2 13CN
in ALMA data. The main objective of this work is to provide accurate
frequency predictions to search for this molecule in the Galactic
center source Sagittarius B2(N) and to facilitate its detection in
space.
The laboratory rotational spectrum of 13CH3 13CH2 13CN has
been recorded with the Lille's fast DDS solid-state spectrometer
between 150GHz and 990GHz. Results. More than 4000 rotational
transitions were identified in the laboratory. The quantum numbers
reach J=115 and Ka=39. Watson's Hamiltonian in the A and S reductions
were used to analyze the spectra. Accurate spectroscopic parameters
were determined. The rotational spectra of the 13C containing
species CH3CH2CN have been assigned, thus allowing the determination
of the rotational and centrifugal distortion constants.
Description:
Table 3 contains assigned rotational transitions of the ground state
of triple-13C isotopologue of ethyl cyanide, 13CH3 13CH2
13CN.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 72 6014 Assigned rotational transitions of the ground state
of triple-13C isotopologue of ethyl cyanide
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See also:
J/A+A/493/565 : Deuterated and 15N ethyl cyanides (Margules+, 2009)
J/A+A/500/1109 : Rotational spectrum of HCOO13CH3 (Carvajal+, 2009)
J/A+A/538/A51 : Rotational spectrum of CH3CH(NH2)CN (Mollendal+, 2012)
J/A+A/538/A119 : Spectrum of 18O-methyl formate HCO18OCH3 (Tercero+ 2012)
J/A+A/540/A51 : Submm spectrum of deuterated glycolaldehydes (Bouchez+, 2012)
J/A+A/543/A46 : Submillimeter spectrum of HCOOCD2H (Coudert+, 2012)
J/A+A/543/A135 : New analysis of 13C-CH3CH2CN up to 1THz (Richard+, 2012
J/A+A/544/A82 : Rotational spectroscopy of diisocyanomethane (Motiyenko+ 2012)
J/A+A/548/A71 : Spectroscopy and ISM detection of formamide (Motiyenko+, 2012)
J/A+A/549/A96 : mm and sub-mm spectra of 13C-glycolaldehydes (Haykal+, 2013)
J/A+A/549/A128 : Singly deuterated isotopologues of formamide (Kutsenko+, 2013)
J/A+A/552/A117 : Mono-deuterated dimethyl ether (Richard+, 2013)
J/A+A/553/A84 : (Sub)mm spectrum of deuterated methyl cyanides (Nguyen+, 2013)
J/A+A/559/A44 : Rotational spectrum of MAAN (CH2NCH2CN) (Motiyenko+, 2013)
J/A+A/563/A137 : THz spectrum of methylamine (Motiyenko+, 2014)
J/A+A/568/A58 : HCOO13CH3 rotational spectrum (Haykal+, 2014)
J/A+A/579/A46 : Mono13C acetaldehydes mm/submm wave spectra (Margules+ 2015)
J/A+A/587/A152 : Rotational spectrum of 13C methylamine (Motiyenko+, 2016)
J/A+A/591/A110 : 15NH2 amidogen radical rotational spectrum (Margules+, 2016)
J/A+A/592/A43 : Millimeter wave spectra of carbonyl cyanide (Bteich+, 2016)
J/A+A/590/A93 : Doubly 13C-substituted ethyl cyanide (Margules+, 2016)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- S [g.s.] State identifier (ground state)
6- 8 I3 --- J' Upper J quantum number
11- 12 I2 --- Ka' Upper Ka quantum number
14- 16 I3 --- Kc' Upper Kc quantum number
18- 20 I3 --- J" Lower J quantum number
23- 24 I2 --- Ka" Lower Ka quantum number
26- 28 I3 --- Kc" Lower Kc quantum number
34- 44 F11.4 MHz Freq Observed transition frequency
49- 56 F8.5 MHz O-C Residuals of the fit
59- 64 F6.4 MHz unc Uncertainty of measurements
67- 72 F6.4 --- RelI ? Relative intensity for blended line components
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Acknowledgements:
Anastasia Pienkina, anastasia.pienkina(at)univ-lille1.fr
(End) Anastasia Pienkina [PhLAM, Lille 1], Patricia Vannier [CDS] 13-Feb-2017