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High resolution fourier transform spectrum of PD3 in the region of the stretching overtone bands 2ν1 and ν1+ν3

✍ Scribed by O.N. Ulenikov; Yu.B. Yuhnik; E.S. Bekhtereva; N.E. Tyabaeva; H. Bürger; W. Jerzembeck; L. Fusina

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
190 KB
Volume
221
Category
Article
ISSN
0022-2852

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✦ Synopsis

The infrared spectrum of the PD 3 molecule has been measured in the region of the first stretching overtone bands on a Fourier transform spectrometer with a resolution of 0.0068 cm À1 and analyzed for the first time. More than 800 transitions with J max ¼ 15 have been assigned to the bands 2m 1 and m 1 þ m 3 . An effective Hamiltonian was used which takes into account both the presence of resonance interactions between the states (2 0 0 0) and (1 0 1 0), and interactions of these with the third stretching vibrational state of the v ¼ 2 polyad, (0 0 2 0). A set of 44 spectroscopic parameters is obtained from the fit. This reproduces the 305 initial ''experimental'' upper rovibrational energies with an rms ¼ 0:0015 cm À1 .

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