1,1′-Dimethyl-4,4′-[(2,4-diphenylcyclobutane-1,3-diyl)dipyridinium–(E)-1-methyl-4-styrylpyridinium–benzenesulfonate (0.15/1.70/2)

• Main Authors: Hoong-Kun Fun, Chanasuk Surasit, Kullapa Chanawanno, Suchada Chantrapromma
• Format: Article
• Language: English
• Published: International Union of Crystallography 2009-10-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536809034588

In the title compound, 1.70C14H14N+·0.15C28H28N22+·2C6H5O3S−, the monocation exists in the E configuration with respect to the ethenyl C=C double bond and is close to planar, the dihedral angle between the pyridinium and phenyl ring being 5.20 (13)°. The dication lies about an inversion centre. In the crystal, the dication occupies almost the same site occupied by monocations at (x, y, z) and (2 − x, 1 − y, 1 − z). The O atoms of the anion are disordered over two positions with occupancies of 0.75 and 0.25. In the crystal, the cations are stacked in an antiparallel manner along the a axis, whereas the anions are linked into chains along the same direction by C—H...O hydrogen bonds. In addition, C—H...π and π–π interactions [centroid–centroid distance = 3.593 (9) or 3.6705 (16) Å] are observed.