94- Abstract 2012 NF3 Molecule

High-Resolution Infrared Spectroscopy of the v1 + v4 Band of 14NF3 : Reductions of the Rovibrational Hamiltonian

http://dx.doi.org/10.1155/2012/218684

by Hamid Najib, Siham Hmimou, and Hicham Msahal 

Equipe de Spectrométrie Physique, Département de Physique, Université Ibn Tofaïl, Faculté des Sciences, B.P. 133, Kénitra 14000, Morocco

Highlights

• Experimental rovibrational interaction constants of NF3. v1 + v4 Band
• v1 + v4 band constants of NF3. 
• Reductuin of Hamiltonian

 

Abstract

The high-resolution Fourier transform infrared spectrum of nitrogen trifluoride NF3 has been studied in the v1 + v4 perpendicular band region around 1523 cm−1. All experimental data have been refined applying various reduction forms of the effective rovibrational Hamiltonian developed for an isolated degenerate state of a symmetric top molecule. The v1 = v4 = 1 excited state of the 14NF3 oblate molecule was treated with models taking into account ℓ- and k-type intravibrational resonances. Parameters up to sixth order have been accurately determined and the unitary equivalence of the derived parameter sets in different reductions was demonstrated.

KEYWORDS

Nitrogen trifluoride; Rovibrational constants; Reduction; Hamiltonian; 


Voir aussi :

* https://doi.org/10.1006/jmsp.1996.0116

* https://doi.org/10.1006/jmsp.1999.7896