The Hydrated Tosylate of Dimeric 2'-Hydroxy-4-N-methylstilbazolium

The centrosymmetric dimeric cation in the title compound, bis(2'-hydroxy-4-N-methylstilbazolium) ditoluenesulfonate dihydrate, (C₂₈H₂₈N₂O₂)²⁺.(C₇H₇SO₃)₂^-.2H₂O is propeller-like: the planar central four-membered ring makes dihedral angles of 85.0 (2) and 63.1 (2)° with the mean planes of the pyridinium and phenyl rings, respectively. Cations, anions and water molecules are connected by hydrogen bonding.

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