Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 12 (December 2012)

organic compounds

Acta Cryst. (2012). E68, o3383-o3384    [ doi:10.1107/S1600536812046284 ]

4-[(E)-2-(Pyridin-2-yl)ethen­yl]pyridine-terephthalic acid (2/1)

P. Castro-Montes, J. A. Guerrero-Alvarez, H. Hopfl, J. J. Campos-Gaxiola and A. Cruz-Enriquez

Abstract: The title 2:1 co-crystal, 2C12H10N2·C8H6O4, crystallizes with one mol­ecule of 4-[(E)-2-(pyridin-2-yl)ethen­yl]pyridine (A) and one half-mol­ecule of terephthalic acid (B) in the asymmetric unit. In the crystal, the components are linked through heterodimeric COOH...Npyridine synthons, forming linear aggregates of composition -A-B-A-B-. Further linkage through weak C-H...O and C-H...[pi] inter­actions gives two-dimensional hydrogen-bonded undulating sheets propagating in the [100] and [010] directions. These layers are connected through additional weak C-H...O contacts, forming a three-dimensional structure.

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