in neat (no solvent) Kinetics; thermal decompn. at 150-240°C; mass spectrometry in gas phase;

in further solvent(s) solvent: anhydrous HF; AgF3 in solvent exposed to large excess of Xe gas at 20 ° C, mixture allowed to ionteract at ca. 20 ° C for 1 h,; tube cooled to -78 ° C,excess Xe and solvent removed under vac.,mixture warmed to ca. 20 ° C,XeF2 on the walls of the tube and AgF2 in the bottom (X-ray powder photograph identical with that of authentic sample);