A study has been made of the jet nuorination of HCK,(CNi2, CiiaXH:! and I12SCH2CH2hTH* under awidevariety of operating conditions. Each of these compounds yielded the products CFaNFs,(CF,)* XF,(CFa) aN and CFaN== NCF: in varying amounts, indicating that these fluorinations may have operated, in part at least, through a common mechanism. There were also formed the new compounds NF2CF2CF2'2NF2, CP8NFCHF?, CFINFCF~ CFS and ...