ArH2S Argon - hydrogen sulfide

Quantum State Molecular Constants Reference Method 

0=0 correlates with the Oqo rotational state of free H2O, and n=0 with Iqi. 

The complex appears to be planar with the Ar lying on the symmetry axis of the equilateral triangle. However, two possible structures are in agreement with the spectra, with the Ar at the vortex of the triangle or opposite to it. The first model seems energetically the more likely. 

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