22′-24-Bis(naphthalen-1-yl)cyclo­butane-13-di­ylbis­(1-methyl­pyridinium) diiodide: thermal-induced 2 + 2 cyclo­addition reaction of a heterostilbene

摘要

The asymmetric unit of the title compound, C36H32N2 ²⁺·2I⁻, consists of one half-mol­ecule of the cation and one I⁻ anion. The cation is located on an inversion centre. The dihedral angle between the pyridinium ring and the naphthalene ring system in the asymmetric unit is 19.01 (14)°. In the crystal, the cations and the anions are linked by C—H⋯I inter­actions into a layer parallel to the bc plane. Intra- and inter­molecular π–π inter­actions with centroid–centroid distances of 3.533 (2)–3.807 (2) Å are also observed.