Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)

organic compounds

Acta Cryst. (2012). E68, o67-o68    [ doi:10.1107/S1600536811052433 ]

2,2'-[2,4-Bis(naphthalen-1-yl)cyclo­butane-1,3-di­yl]bis­(1-methyl­pyridinium) diiodide: thermal-induced [2 + 2] cyclo­addition reaction of a heterostilbene

S. Chantrapromma, K. Chanawanno, N. Boonnak and H.-K. Fun

Abstract: The asymmetric unit of the title compound, C36H32N22+·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 [pi]-[pi] inter­actions with centroid-centroid distances of 3.533 (2)-3.807 (2) Å are also observed.

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