The far-infrared spectrum of deuterated hydrogen sulfide: The ground state rotational constants of D232S, D234S, HD32S, and HD34S

Rare isotopic species of hydrogen sulfide: the rotational spectrum of H236S

“…Owing to the considerable change in the spectroscopic parameters upon deuteration, HD 32 S and D 32 2 S were used here as parent species for the mono-and bi-deuterated species, respectively. The scaled spectroscopic parameters of HD 33 S, HD 34 S, D 33 2 S, and D 34 2 S are collected in Camy-Peyret et al 1985). For HD 32 S, the experimental rotational and centrifugal-distortion constants are those recently obtained by the present authors (Cazzoli et al, in prep.…”

“…), while for D 2 S the experimental parameters were obtained from a fit of the transitions available in the Cologne database (Müller et al 2001;Müller et al 2005), thereby using Watson's S reduction. (The reader is also referred to the original works : Hillger & Strandberg 1951;Camy-Peyret et al 1985.) For D 34 2 S, good agreement is observed, thus suggesting that the rotational and quartic centrifugal-distortion constants of Camy-Peyret et al (1985) should be considered reliable.…”

“…(The reader is also referred to the original works : Hillger & Strandberg 1951;Camy-Peyret et al 1985.) For D 34 2 S, good agreement is observed, thus suggesting that the rotational and quartic centrifugal-distortion constants of Camy-Peyret et al (1985) should be considered reliable. With the present study, we therefore can only improve the spectroscopic characterization by providing reliable sextic terms.…”

“…With the present study, we therefore can only improve the spectroscopic characterization by providing reliable sextic terms. In Camy-Peyret et al (1985), the sextic and higher order terms were kept fixed at the corresponding values for D 32 2 S. For HD 34 S, the differences between the scaled and experimental rotational constants range from 5 MHz for A to ∼37 MHz for C and ∼39 MHz for B. In view of the proved reliability of our scaled parameters, an experimental re-investigation is deserved for this isotopic species.…”

“…In the insets, this comparison is shown in more detail; on the left side, a comparison with the recorded spectra is provided. Camy-Peyret et al (1985).…”