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High-Resolution Infrared Spectroscopy of the v1 + v4 Band of 14NF3: Reductions of the Rovibrational Hamiltonian
被引:10
|作者:
Najib, Hamid
[1
]
Hmimou, Siham
[1
]
Msahal, Hicham
[1
]
机构:
[1] Univ Ibn Tofail, Dept Phys, Fac Sci, Kenitra 14000, Morocco
关键词:
Nitrogen trifluoride NF3;
FTIR spectroscopy;
Rovibration;
Combination band;
Reductions;
Equivalences;
SYMMETRIC TOP MOLECULES;
NITROGEN TRIFLUORIDE;
VIBRATIONAL-STATE;
MILLIMETER-WAVE;
ROTATIONAL SPECTRUM;
CENTIMETER-WAVE;
(NF3)-N-14;
RESONANCE;
FTIR;
NU(N)(A(1));
D O I:
10.1155/2012/218684
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The high-resolution Fourier transform infrared spectrum of nitrogen trifluoride NF3 has been studied in the v(1) + v(4) 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 v(1) = v(4) = 1 excited state of the (NF3)-N-14 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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页码:253 / 259
页数:7
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