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metal-organic compounds
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.