Pentafluoro oxo tellurate VI

With arsenic trifluoride, arsenic pentafluoro(oxo)tellurates(VI) were obtained.  

Dimethyl mercury reacted with hydroxy tellurium pentafluoride at 0° with evolution of methane and quantitative formation of white, crystalline methyl mercury pentafluoro-(oxo)tellurate(VI), a sublimable, light-sensitive compound.  

An excess of hydroxy tellurium pentafluoride and temperatures up to 140 did not produce mercury bis[pentafluoro(oxo)tellurate(VI)].  

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Imidazolinium pentafluoro(oxo)tellurate(VI), methanol, and excess imidazole gave imidazolinium d.v-methoxo(tetrafluoro)oxotellurate (VI), which was converted to cis-hydroxy methoxy tellurium tetrafluoride on treatment with 96% sulfuric acid1. 

The reaction of 2-/V-acetylaminoethanol with tellurium hexafluoride in acetonitrile produced an oxazolinium pentafluoro(oxo)tellurate(VI) from the intermediary 2-N-acetylaminoethoxy tellurium pentafluoride that underwent intramolecular alkylation4. 

Trimethylchlorogermane reacted in acetonitrile with silver pentafluoro(oxo)tellurate(VI) to yield trimethylgermyloxy tellurium pentafluoride2. 

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