[{(C₅Me₄H)Fe(C₅Me₄)CH₂C₅H₄}₂Fe]²⁺.[C₂(CN)₄]^-.[C₃(CN)₅]^-

The structure of the organometallic charge-transfer salt, 1,1'-bis[(octamethylferroceniumyl)methyl]ferrocene tetracyanoethenide pentacyanopropenide, [Fe{(C₉H₁₃)Fe(C₉H₁₂)CH₂C₅H₄}₂][C₂(CN)₄][C₃(CN)₅] has been determined; the asymmetric unit contains the 1,1'-bis[(octamethylferrocenyl)methyl]ferrocenium dication, one tetracyanoethenide (TCNE^-) radical anion and one pentacyanopropenide (PCNP^-) anion. The structure analysis shows that the dication adopts an unusual conformation and that, as expected, the octamethylferrocene units are oxidized, and the central ferrocene unit is not.

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