A π-Stacked Complex Between 4,4'-Dimethyl-4,4'-bipyridinium Bis(hexafluorophosphate) and 1,5-Bis[(hydroxyethoxy)ethoxy]naphthalene

The title π-electron-rich naphthalene-containing polyether {alternative name: 2,2′-[1,5-naphthylenebis(oxyethoxy)]diethanol} forms a 1:1 crystalline complex with the π-electron acceptor 4,4′-dimethyl-4,4′-bipyridinium bis(hexafluorophosphate), C₁₂H₁₄N₂²⁺.2PF₆⁻.C₁₈H₂₄O₆. The molecular packing exhibits extensive intermolecular hydrogen bonding and infinite π-stacking of the complex along the direction of the b axis.

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