Pentacarbonylchlororhenium

After solvent is removed under continuous vacuum (0.1 mm) at room temperature, the crude, slightly brownish residue is transferred to a sub-limator and sublimed at 80-45° and 0.1 mm. Yield 1.10 g [94.1%, based on Re2(CO)io] [Checkers yield 85%]. 

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The reaction of bromopentacarbonylmanganese(I) and of pentacarbonylchlororhenium(I) with bis[trimethylstannyl] tellurium produced dimeric carbonyl complexes with two trimethylstannyltelluro groups bridging the metal centers5. 

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