Hamid Najib, Siham Hmimou, Hicham Msahal, "High-Resolution Infrared Spectroscopy of the v1 + v4 Band of 14NF3:Reductions of the Rovibrational Hamiltonian", Journal of Chemistry, vol. 9, Article ID 218684, 7 pages, 2012. https://doi.org/10.1155/2012/218684
High-Resolution Infrared Spectroscopy of the v1 + v4 Band of 14NF3:Reductions of the Rovibrational Hamiltonian
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.
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