Rhenium, methyl -, dimer

More recently the methyl analogue of Re2Clg was prepared from monomeric rhenium pentachloride, as well as from the rhenium benzoate dimer, Re2(02CC6H5)4Cl2, which has the quadruple bond already established (80). Addition of excess methyllithium to ReCls in diethyl ether at —78°C followed by low-temperature isolation of the resultant red crystals produced Li2Re2(CH3)8 2(C2H5)20 in a 16% yield. 

Strubinger, S.K.D., Sun, I-W, Cleland, W.E., and Hussey, C.L. (1990) Electrochemical and spectroscopic studies of rhenium (IV) monomeric and dimeric chloride complexes in the basic aluminium chloride-1-methyl-3-ethylimidazolium chloride room- temperature molten salts, Inorg. Chem. 29,4246-4252. 

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