Organo Tellurium Pentahalides

Telluronic acids have not yet been prepared. They are expected to be good oxidizing agents and to have low stability. 

Phenyl tellurium pentafluoride was obtained by treatment of diphenyl ditellurium or phenyl tellurium trifluoride with xenon difluoride.  

The hydrolysis of phenyl tellurium pentafluoride with an equimolar amount of water in acetonitrile for one hour at 20° produced a 1 3 mixture of cis- and tmns-phenyl tellurium tetrafluoride hydroxides. The compounds were characterized by F-NMR spectroscopy . 

Irgolic Organo Tellurium Compounds with 2 Te —C Bonds or 1 Te = C Bond 

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