(E)-1-Methyl-2-styrylpyridinium iodide

Abstract

In the title compound, C14H14N+·I−, the cation exists in an E configuration with respect to the ethenyl bond and is slightly twisted, the interplanar angle between the pyridinium and phenyl rings of the cation being 4.8 (2)°. In the crystal packing, the cations are stacked in an antiparallel fashion along the a axis by a π–π interaction involving both pyridinium and phenyl rings; the centroid–centroid distance is 3.542 (3) Å. Each iodide ion is sandwiched between two cations. The cations and iodide anions are linked together by weak C—H...I interactions, giving rise to ladder-like ribbons along the a axis.