Measurements of line intensities and determination of transition moment parameters from experimental data for the nu(1) and nu(3) bands of (D2S)-S-32

摘要

First measurements of line intensities for nu(1) and nu(3) bands of (D2S)-S-32 are reported. About 300 intensities of (D2S)-S-32 vibration-rotation lines were obtained from experimental high-resolution spectra recorded in the 1810-2051 cm(-1) region with the Fourier Transform Spectrometer built in Reims. Empirical values of transition moment parameters for nu(1) and nu(3) bands of (D2S)-S-32 were determined for the first time using a least-square fit to the observed intensities. Experimental (D2S)-S-32 intensities were compared with recent global Variational predictions [VI.G. Tyuterev, L. Regalia-Jarlot, DW Schwenke, S.A. Tashkun, Y.G. Borkov, C. R. Phys. 5 (2004) 189-199] computed from isotopically invariant potential and dipole moment functions of the hydrogen sulphide molecule. Average discrepancy between these calculations and our observed data was 0.03 cm(-1) for line positions of this spectral range. The discrepancy between these calculations and our measurements for the sum of line intensities was 5.5% and 3.5% for the nu(1) and nu(3) bands, correspondingly. (c) 2008 Elsevier Inc. All rights reserved.