SOLEIL and ALMA views on prototypical organic nitriles: C2H5CN - Archive ouverte HAL Access content directly
Journal Articles Journal of Molecular Spectroscopy Year : 2021

SOLEIL and ALMA views on prototypical organic nitriles: C2H5CN


The high resolution vibrational spectrum of ethyl cyanide (C2H5CN) has been investigated in the far-IR using synchrotron-based Fourier transform spectroscopy. The assignment was performed using the Automated Spectral Assignment Procedure (ASAP) allowing accurate rotational energy levels of the four lowest fundamental vibrations of the species, namely the v 13 = 1 @ 205.934099(8) cm −1 , and v 21 = 1 @ 212.141101(8) cm −1 , v 20 = 1 @ 372.635293(15) cm −1 , v 12 = 1 @ 532.699617(16) cm −1 states, to be determined. The analysis not only confirms the applicability of the ASAP in the treatment of (dense) highresolution infrared spectra but also reveals some of its limitations. Complementary to the infrared study, the pure rotational spectrum of C2H5CN was also studied in selected frequency ranges from 75 to 255 GHz. New observations of a prototypical high-mass star-forming region, G327.3−0.6, performed with the Atacama Large Millimeter Array show that vibrational satellites of C2H5CN can be very intense, of order several tens of Kelvin in units of brightness temperature.
Fichier principal
Vignette du fichier
C2H5CN_HAL.pdf (4.07 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03039197 , version 1 (03-12-2020)



Christian P Endres, Marie-Aline Martin-Drumel, Oliver Zingsheim, Luis Bonah, Olivier Pirali, et al.. SOLEIL and ALMA views on prototypical organic nitriles: C2H5CN. Journal of Molecular Spectroscopy, 2021, 375, pp.111392. ⟨10.1016/j.jms.2020.111392⟩. ⟨hal-03039197⟩
107 View
58 Download



Gmail Facebook Twitter LinkedIn More