 Others include bis(trifluoromethyl)-sulfamoyl fluoride; 1,2-hydrazinedisulfonyl fluoride (which is an inorganic dimer).It can be contrasted with the sulfonimidoyl fluorides with structure R-S(O)(F)=N-R'.Sulfamoyl fluorides can be made by treating secondary amines with sulfuryl fluoride (SO2F2) or sulfuryl chloride fluoride (SO2ClF).