From Trimethylsilylamino Tellurium Pentafluoride

Chloro(trimethylsilyl)amino Tellurium Pentafluoride 5.14 g (16.7 mmol) of dichloroamino tellurium pentafluoride, prepared from trimethylsilylamino tellurium pentafluoride and chlorine fluoride, are dissolved in 10 ml of fluorotrichloromethane, 2.75 g (18 mmol) of bromotrimethylsilane are added dropwise rmder protection from moisture, and the resultant solution is stirred at 20° for 2 h. The components of the mixture are separated by several trap-to-trap distillations with traps at —30°, —78°,and —136° yield 3.17 g (55%) b.p. -30°/0.007 torr. 

Trimethylsilylamino tellurium pentafluoride treated with carbonyl difluoride at 60 produced carbonylamino tellurium pentafluoride.  

Carbonylamino Tellurium Pentafluoride 3.1 g (10 mmol) of trimethylsilylamino tellurium pentafluoride are placed in a 100 ml stainless steel cyUnder which is then cooled. 1.98 g (30 mmol) of carbonyl difluoride are condensed into the cylinder which is then closed and heated at 60° for 15 h. The resultant mixture is distilled under a dynamic vacuum through —78° and —196° traps. The contents of the —196° trap are pumped 

Irgolic Organo-tellurium Compounds without a C,Te-Bond 

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