Acta Cryst. (2011). E67, o1104  [ doi:10.1107/S1600536811013080 ]

1,1'-[(1,3-Dihydroxypropane-2,2-diyl)dimethylene]dipyridinium bis(hexafluorophosphate)

A. Yuan, C. Zheng, L. Zhuang, C. Wang and G. Wang

Abstract: The title compound, C₁₅H₂₀N₂O₂²⁺·2PF₆^-, was prepared by anion exchange of two bromide ions in the ionic liquid 2,2'-bis-(pyridinium-1-ylmethyl)-propane-1,3-diol dibromide with potassium hexafluorophosphate. The two pyridine rings are planar (r.m.s. deviations = 0.008 and 0.00440 Å) and make a dihedral angle of 44.0 (2)°. Intermolecular O-HF and C-HF interactions occur. The four F atoms in each anion were refined as disordered over two sets of sites with an occupancy ration of 0.700 (19):0.300 (19).

Online 13 April 2011

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