in neat (no solvent) (CH3)3SiNHTeF5 and PF5 stirred for 14 h at room temp.; products distilled under dynamic vac. through -30 (H2NTeF5), -78 (F3P=NTeF5) and -196°C ((CH3)3SiF and PF5) trap; elem. anal.;

in neat (no solvent) (CH3)3SiNHTeF5 filled into autoclave prior to addn. at -196°C SOF4 and mixt. slowly warmed to 65°C and stirred for 40 h; volatile materials pumped into -196°C cooled trap, vac. distillation through -25, -78 (O=SF2=NTeF5) and -196°C ((CH3)3SiF and SOF4) trap; elem. anal.;

in neat (no solvent) SF4 added by vac. distillation to cooled (CH3)3SiNHTeF5 and mixt. allowed to react. at room temp. overnight with stirring; contens separated by slow vac. distillation through -20 (H2NTeF5), -65 (F2S=NTeF5) and -196°C ((CH3)3SiF and SF4) traps; elem. anal.;