Knowledge Bank

The pure rotational spectrum of SrSH $(X~2A)$ in the vibrational ground state has been measured using direct absorption mm/sub-mm spectroscopy. The radical was produced by the reaction of vaporized Sr and $H2S$ gas in the presence of a DC discharge. Ten a-type dipole allowed transitions with $Ka$ asymmetry components up to $Ka=6$ have been recorded in the range of 350-405 GHz. Preliminary rotational constants (MHz) have been determined and are listed below. A full analysis of the spectrum, as well as a structure, will be presented. $A=283504$, $B=2877.287$, $C=2845.508$, $(ϵbb+ϵcc)/2=57.2$