Knowledge Bank

“By employing mass spectroscopy, low temperature distillation and microwave spectroscopy, one component of the mixture of gases generated by heating AgF and sulfur has been identified as $S2F2$ with structure analogous to thionyl fluoride $(SOF2)$. The relative mass spectral cracking pattern found for $S232F2$ was . Three sulfur isotope species were identified in the microwave spectra. Strong \emph{c} dipole transitions and weak \emph{a} dipole transitions were observed. The rotational constants are: [FIGURE] The structural parametrs are $d(S=S)=1.86\pm 0.03${\AA}; $d(S-F)=1.59\pm 0.03${\AA}; $\angle FSF=92\circ \pm 1\circ ;\angle SSF=108.5\circ \pm 1.5\circ$. Evidence for the existence of another molecule with empirical formula $S2F2$ will be discussed. “