Pure rotational spectroscopic measurements on a uranium-containing polyatomic compound: SUO₂

Ground-state rotational constants were determined from the rotational spectra of two isotopologues (S-32 and S-34) of SUO₂. For ³²SUO₂ it was determined that A₀= 5150.34(17) MHz, B₀= 2950.302(12) MHz, and C₀= 1872.933(13) MHz. The SUO₂ molecules were produced using a laser ablation nozzle inside of a chirped pulse Fourier transform microwave spectrometer operating between 8 GHz and 18 GHz. The obtained rotational constants and Kraitchman substitution coordinates for sulfur are in very good agreement with those obtained from quantum chemical calculations.