Pressure broadening coefficients in the ν6 band of CH3F in collision with He

被引：4

作者：

Dhib, D. ^{[1
]}

Ayari, C. ^{[1
]}

Raddaoui, E. ^{[1
]}

Soulard, P. ^{[2
]}

Guinet, M. ^{[2
]}

Dhib, M. ^{[1
]}

Aroui, H. ^{[1
]}

机构：

[1] Univ Tunis, Ecole Natl Super Ingenieurs Tunis, Lab Dynam Mol & Mat Photon, UR11ES03, Ave Taha Hussein, Tunis 1008, Tunisia

[2] Univ Paris 06, Sorbonne Univ, UPMC Univ Paris 06, CNRS,UMR 8233,MONARIS, 4 Pl Jussieu, F-75005 Paris, France

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2018年 / 352卷

关键词：

CH3F; Helium broadening; FTIR; Semiclassical calculations; Exact trajectory; NU(5) BANDS; NU(2); SELF; PARAMETERS; AMMONIA; NU(3); LINES; V(2);

D O I：

10.1016/j.jms.2018.07.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

In this study we report the first measurements of the pressure line broadening coefficients of 219 lines of CH3F in the (P)p, P-R, (R)Q, (P)Q and R-R sub-branches of the nu(6) band (8.5 mu m-spectral region) at room temperature using a high-resolution Fourier transform spectrometer. The collisional line widths are obtained from the non-linear least-square multi-pressure fitting techniques. A Voigt line shape model was used in the present analysis. Measured values are compared with the results of theoretical calculation based on semi-classical formalism of Robert-Bonamy (RB) model with exact isotropic trajectories. Even with a Smith-Giraud-Cooper intermolecular potential model the calculated values show a quite good agreement with experimental results. (C) 2018 Published by Elsevier Inc.

引用

页码：16 / 25

页数：10

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