High-Resolution Fourier Transform Spectra of HDS in the Regions of the Bands ν1and 2ν1/ν2+ ν3

High-resolution rotational analysis of HDS: 2ν3, ν2+2ν3, 3ν3, and ν2+3ν3 bands

“…b Reproduced from [2]. including four states in present work and those in [23][24][25][26][27], the rotation-vibration coefficients a c i (i = 1,2,3) were obtained by a least square fitting. The results are presented in Table 5.…”

“…In the fitting, a z 1 and a x 3 were constrained to zero because they cannot be determined well due to limited available experimental data. In [26,27], the parameters a c i were also estimated with the isotope substitution method. For comparison, these values are also presented in Table 5.…”

“…The mono-deuterated hydrogen sulfide has been investigated up to 4000 cm À1 . Ulenikov et al studied the bands m 1 + m 2 /m 3 [23], nm 2 (n = 1,2,3) [24][25][26], and m 1 and 2m 1 /m 2 + m 3 [27]. Several empirical determinations of the potential energy surface (PES) of hydrogen sulfide have been performed [28][29][30][31], and a deviation of 0.03 cm À1 of numerical energy calculations including variant isotopes was achieved by Tyuterev et al [32].…”

High-resolution Fourier-transform spectroscopy of 18O-enriched water molecule in the 1080–7800cm−1 region

“…The m 2 + m 3 , 2m 1 , and 2m 3 bands are observed for the first time, and they are strongly mixed with the absorptions of other isotopes of water. So these three bands were analyzed simultaneously with the determination of the Hamiltonian parameters in the ''snow ball'' method [36]. Table 5 gives a summary of assignments and energy levels obtained in this work and [34].…”

Joint ro-vibrational analysis of the HDS high resolution infrared data

“…This investigation is dealing with the mono-deuterated, HDS, species whose spectra were studied earlier with high resolution on several occasions [2][3][4][5][6][7][8]. The pure rotational spectrum of the HDS molecule was discussed in [2].…”