The first 4,1,10-MC₂B₁₀ supraicosahedral metallacarboranes and a route to previously inaccessible 4,1,12-ruthenium arene species
2005
Ellis, David | Lopez, Maria Elena | McIntosh, Ruaraidh | Rosair, Georgina M. | Welch, Alan J. | Quenardelle, Romain
Reduction of 1,12-closo-C₂B₁₀H₁₂ or its C,C-dimethyl analogue with sodium in liquid ammonia followed by metallation with {CpCo}²⁺, {(arene)Ru}²⁺ or {(dppe)Ni}²⁺ fragments affords the first examples of 4,1,10-MC₂B₁₀ species; thermolysis of these yields the appropriate 4,1,12-MC₂B₁₀ isomers, unavailable for (arene)Ru metallacarboranes by similar thermolysis of known 4,1,6-MC₂B₁₀ compounds.
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