Knowledge Bank

A systematic study has been made of the formation of bimolecular complexes containing sulfur dioxide. Weakly bound species containing $SO2$ and one of is other small molecules have been formed. The molecules studied ranged in size from $N2$ to acetone. In each case, a supersonic nozzle expansion of argon containing $SO2$ and a second molecule was studied as a function of $SO2$ and molecular partner concentration. For each partner molecule, X, the intensities of $SO2\cdot X,Ar\cdot X,Ar\cdot SO2,(Ar)2,(X)2,$ and $(SO2)n$ were measured. Simple trends in this data were easily identified and will be discussed. Those complexes suitable for microwave spectroscopic study will also be identified.