in neat (no solvent) CsIF4O2 and NF4SbF6 were placed in flask, HF was condensed in at -78°C, mixt. was stirred for 1 h at room temp., cooled to -78°C,sepd. by filtrtaion, HF was pumped off over several h form -64 to -30°C, residue was decomposed; volatiles products were passed through trap at -78, -95, -112 and -210°C; elem. anal.;

in neat (no solvent) CsIF4O2 and NF4SbF6 were placed in flask, HF was condensed in at -78°C, mixt. was stirred for 1 h at room temp., cooled to -78°C,sepd. by filtrtaion, HF was pumped off over several h form -64 to -30°C, residue was decomposed; volatiles products were passed through trap at -78, -95, -112 and -210°C; elem. anal.;