An Additional Isomer of the Neutral Dicarbollide Analogue of Ferrocene [Fe{C₂B₉H₁₀(SMe₂)}₂]

The title compound, 8,8'-bis(dimethyl sulfido)-3,3'-ferra-commo-bis[3,1,2-ferradicarba-closo- dodecaborane(11)], has the expected overall geometry in which two {FeC₂B₉} icosahedra are linked via a common Fe atom; additionally, the whole cluster has crystallographically imposed C₂ symmetry. The structure is compared with those of its geometric isomers and of some related compounds.

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