Ruthenium Tellurolates

A benzene solution of diphenyl ditellurium and tris[tetracarbonylruthenium] heated at 60 for four hours formed bis[tricarbonylbenzenetellurolatoruthenium] and oligomeric di-carbonylbis[benzenetellurolato]ruthenium. The reaction mixture was chromatographed on silica gel to separate these compounds  

The bis[triphenylphosphoranylidene]ammonium salt of the anionic hydridoundecacar-bonyltriosmate cluster reacted with bis[4-methoxyphenyl] tellurium dichloride in dichloro-methane to form in 7 percent yield a neutral triosmium cluster with one bridging 4-methoxybenzene tellurolate group.  

When the compound is dissolved in octane and the solution is refluxed for two hours, nona-carbonylditelluridotriosmium is obtained in 6% 5deld.  

The reaction of tellurium with osmium-carbyne complexes or with osmium-methylene complexes, or of sodium hydrogen telluride with iodomethyl(iodo)-osmium complexes produced tellurolato-osmium compounds. 

The bis[/i-dimethylphosphidocyclopentadienylcobalt] complex reacted in benzene with tellurium to produce a tellurido-bridged compound, that was methylated with methyl iodide in diethyl ether.  

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