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Sanzharov N. A. Yarovoi A. T. Bekhtereva E. S. Ulenikov O. N. 《Russian Physics Journal》2002,45(10):1024-1031
Analytical formulas are derived that describe the dependences of the transition probabilities in vibrational-rotational spectra of XY3-type molecules with C
3v
symmetry on the rotational quantum numbers. 相似文献
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O.N Ulenikov O.L Petrunina E.S Bekhtereva E.A Sinitsin H BürgerW Jerzembeck 《Journal of Molecular Spectroscopy》2002,215(1):85-92
For the first time the infrared spectrum of PHD2 was recorded in the region of the PH stretching fundamental ν1 at 2324.005 cm−1 and the overtone 2ν1 at 4563.634 cm−1 with a resolution of 4.2×10−3 cm−1 and 8.8×10−3 cm−1, respectively. In the analyses about 1340 and 1020 transitions were assigned to the corresponding ν1 and 2ν1 bands, which provided 316 and 248 upper energies, respectively. Since both the bands are sufficiently isolated, a standard Watson-type Hamiltonian (A-reduction, Ir-representation) was employed. The obtained sets of spectroscopic parameters correlate very well both with each other, and with the corresponding parameters of the ground vibrational state. 相似文献
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Wang Xh Ulenikov ON Onopenko GA Bekhtereva ES He Sg Hu Sm Lin H Zhu Qs 《Journal of Molecular Spectroscopy》2000,200(1):25-33
The high-resolution Fourier transform spectra of the D(2)O molecule have been recorded and assigned in the 4200-5700 cm(-1) region where the vibration-rotation bands 2nu(1), 2nu(3), nu(1) + nu(3), nu(1) + 2nu(2), 2nu(2) + nu(3), and 4nu(2) are located. The presence of numerous and very strong accidental perturbations between the states of the hexad makes it necessary to take into account not only ordinary resonance interactions of the Fermi, Darling-Dennison, and/or Coriolis types, but interactions between the states (v(1)v(2)v(3)) and (v(1) -/+ 2v(2) +/- 2v(3) +/- 1) as well. Parameters of all six vibrational states of the hexad were obtained from the fit of experimental energy values. Copyright 2000 Academic Press. 相似文献
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The five lowest doubly excited deformational vibrational bands ν4 + ν6, 2ν6, ν3 + ν4, ν3 + ν6, and 2ν3 of PH2D have been recorded for the first time using a Bruker 120 HR interferometer with a resolution 0.0033 cm−1 and analysed. Some transitions belonging to a very weak band 2ν4 have been also assigned. From the fit 24 and 86, respectively, diagonal and resonance interaction parameters were obtained which reproduce 1089 upper energy levels obtained from more than 4600 assigned transitions with the rms deviation of 0.00059 cm−1. 相似文献
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The high resolution structure of a superweak 2ν1+ν2+ν3−ν2 band of sulfur dioxide, SO2, is for the first time recorded with a Bruker IFS-120 HR Fourier spectrometer and analyzed using a specially derived procedure
and a relevant computer code. As a result of the analysis, 115 lines have been found in the recorded spectrum, which allowed
us to obtain high-accuracy values of the vibrational energy and rotational parameters of the highly excited vibrational state,
(211). 相似文献
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