%The 28th Colloquium on High Resolution
%Molecular Spectroscopy
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\title{INFRARED SPECTROSCOPY AND MOLECULAR DYNAMICS OF FLUOROMETHANE : ATMOSPHERIC INTEREST.}


\author{\underline{\FirstName H. \LastName ZIADI}}
\address{GSMA, UMR CNRS 7331, University of Reims Champagne Ardenne, Moulin de la Housse B.P. 1039, F-51687 Reims Cedex 2, France, Laboratory of Spectroscopy and Molecular Dynamics, National Superior School of Engineering of Tunis, 5 Av Taha Hussein, 1008
	Tunis, Tunisia}
	
\author{ \underline{\FirstName M. \LastName REY},
	\underline{\FirstName B. \LastName GROUIEZ}, 
	\underline{\FirstName M. \LastName ROTGER}}
\address{GSMA, UMR CNRS 7331, University of Reims Champagne Ardenne, Moulin de la Housse B.P. 1039, F-51687 Reims Cedex 2, France}
\author{\underline{\FirstName A.V \LastName NIKITIN}}
\address{Laboratory of Theoretical Spectroscopy, V.E. Zuev Institute of Atmospheric Optics, SB RAS,
	634055 Tomsk, Russia}
\author{and \underline{\FirstName H. \LastName AROUI}}
\address{Laboratory of Spectroscopy and Molecular Dynamics, National Superior School of Engineering of Tunis, 5 Av Taha Hussein, 1008
	Tunis, Tunisia}
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\fancyhead[C]{{\footnotesize \textit{HRMS, 28th Colloquium, Dijon, France,
			Aug. 28 - Sept. 1, 2023}}}
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\category {3,9}
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	\index{CH$_3$F}

	
	 
Recent advances in both experimental and theoretical rovibrational molecular spectroscopy permit to analyze and monitor the composition of atmospheric and astrophysical environments. The results obtained lead to a better understanding of the photochemical processes that govern the equilibrium of the atmospheric gases. This challenge was enhanced by the constant increase of the aptitude of optical remote-sensing missions. Quantitative detections of these gases require accurate measurements of line positions, line strengths and broadening coefficients of molecular rovibrational transitions using high-resolution spectroscopy. 
Methyl fluoride CH$_3$F being a minor molecular constituent of the Venus atmosphere\footnote{K. Narahari Rao. and CW. Mathews, \textit{Molecular Spectroscopy: Modern Research},(1972)}, is also present in the earth atmosphere at low concentration. The present work is dedicated to the 2$\nu_6$, 2$\nu_3$ and $\nu_3$+$\nu_6$ bands of CH$_3$F with the aim of generating a complete line list for databases (line positions, intensities, and self-broadening coefficients). The spectra were recorded at room temperature for seven pressures of CH$_3$F from $1.0172$ to $14.956$ mbar using the Bruker IFS125HR Fourier Transform spectrometer located at GSMA in Reims. This study builds upon our previous work on this molecule, which focused on the $\nu_2$ and $\nu_5$ bands and was published in the Journal of Quantitative Spectroscopy and Radiative Transfer in April 2022\footnote{H. Ziadi, O. Ben Fathallah, I. Ben Chouikha, F. Kwabia Tchana, X. Landsheere and H. Aroui, \textit{J. Quant. Spectrosc. Radiat. Trans.}, \textbf{286}, 108218, (2022).}.
	
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