On the Study of Resonance Interactions and Splittings in the PH3 Molecule: ν1, ν3, ν2+ν4, and 2ν4 Bands

Author： Ulenikov O.N.   Bekhtereva E.S.   Kozinskaia V.A.   Zheng J-J.   He S-G.   Hu S-M.   Zhu Q-S.   Leroy C.   Pluchart L.  

Publisher： Academic Press

ISSN： 0022-2852

Source： Journal of Molecular Spectroscopy, Vol.215, Iss.2, 2002-10, pp. : 295-308

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Abstract

The high-resolution (0.005 cm-1) Fourier transform infrared spectrum of PH3 is recorded and analyzed in the region of the fundamental stretching bands, ν1 and ν3. The ν2+ν4 and 2ν4 bands are taken into account also. Experimental transitions are assigned to the ν1, ν3, ν2+ν4, and 2ν4 bands with the maximum value of quantum number J equal to 15, 15, 13, and 15, respectively. a1–a2 splittings are observed and described up to the value of quantum number K equal to 10. The analysis of a1/a2 splittings is fulfilled with a Hamiltonian model which takes into account numerous resonance interactions among all the upper vibrational states. © 2002 Elsevier Science (USA).

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