For high-precision determination of the rotational-vibrational energies of the ground vibrational state of the SiH4 molecule, high-resolution rotational-vibrational spectrum of this molecule in the range 600–1200 cm–1 in which bands of the ν2/ ν4 dyad are located is analyzed. As a result, rotational and centrifugal distortion parameters of the ground vibrational state with a root-mean-square deviation of 2·10–4 cm–1 are obtained.
- molecules of tetrahedral symmetry
- rotational-vibrational spectrum
- spectroscopic parameters
ASJC Scopus subject areas
- Physics and Astronomy(all)