A Paucity of Hydrogen Bonds in Ferrocene-1,1'-diylbis[bis(4-methoxyphenyl)methanol]– Methanol (3/2)

In the 3:2 adduct formed between ferrocene-1,1′-diylbis[bis(4-methoxyphenyl)methanol] and methanol, 3[Fe(C₂₀H₁₉O₃)₂].2CH₄O, the ferrocenediol occupies two types of site. Ferrocenediol molecules in general positions form intramolecular O-H...O hydrogen bonds and are hydrogen-bonded to methanol molecules by a single O-H...O hydrogen bond, while ferrocenediol molecules lying across centres of inversion form no O-H...O hydrogen bonds. Overall, only half of the hydroxyl groups in the asymmetric unit act as donors in O-H...O hydrogen bonds, while none of the seven independent methoxyl groups acts as acceptors of O-H...O hydrogen bonds.

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