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Line positions in the v6=1 band of methyl iodide: Validation of the C3v TDS package based on the tensorial formalism

I. Haykal 1, 2, * D. Doizi 3, 2 V. Boudon 4 A. El Hilali 4 L. Manceron 5 G. Ducros 2
* Corresponding author
1 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
2 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
3 SECR - Service d'Etudes du Comportement des Radionucléides
4 LICB - Laboratoire Interdisciplinaire Carnot de Bourgogne
5 MONARIS - De la Molécule aux Nanos-objets : Réactivité, Interactions et Spectroscopies
Abstract : A tensorial formalism adapted to the case of symmetric-top molecules has been recently developed in Dijon (El Hilali et al., J Quant Spectrosc Radiat Transf 2010;111, 1305–1315) [18]. It is based on the O(3)⊃C3v group chain and allows a systematic expansion of the Hamiltonian and dipole moment operators, including all possible interactions for a given rovibrational polyad system. This suite of programs is used to analyze and simulate the mid-infrared spectrum of methyl iodide in order to test its performance. The v6 fundamental band has been recorded using the FTIR Bruker HR125 at the AILES beamline of the SOLEIL Synchrotron facility with the Globar internal source. 3882 lines up to J=61 were assigned and fitted with only 16 tensorial parameters.
Keywords : Line positions Methyl iodide Tensorial formalism Symmetric top Fourier transform infrared spectroscopy
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https://hal-cea.archives-ouvertes.fr/cea-02382519
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Submitted on : Wednesday, November 27, 2019 - 11:21:48 AM
Last modification on : Monday, May 10, 2021 - 12:48:04 PM

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CEA | UNIV-BOURGOGNE | ICB | DEN | CEA-UPSAY | INC-CNRS | UPMC | UNIV-LILLE | DEN-SACLAY | SORBONNE-UNIVERSITE | MONARIS | CNRS | SU-SCIENCES | PHLAM | GS-ENGINEERING | GS-CHIMIE

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I. Haykal, D. Doizi, V. Boudon, A. El Hilali, L. Manceron, et al.. Line positions in the v6=1 band of methyl iodide: Validation of the C3v TDS package based on the tensorial formalism. Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2016, 173, pp.13-19. ⟨10.1016/j.jqsrt.2015.12.016⟩. ⟨cea-02382519⟩

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