2-[(E)-2-(4-Chloro­phen­yl)ethen­yl]-1-methyl­pyridinium 4-methoxy­benzene­sulfonate

In the asymmetric unit of the title salt, C(14)H(13)ClN(+)·C(7)H(7)O(4)S(−), there are two crystallographically independent mol­ecules for each component. Each cation adopts an E configuration with respect to the C=C bond and is slightly twisted; the dihedral angle between the pyridinium and benzene rings is 6.53 (7)° for one mol­ecule and 5.30 (7)° for the other. The meth­oxy groups in the anion mol­ecules are each twisted from the mean plane of benzene ring with torsion angles of 16.38 (19) and 4.32 (19)°. In the crystal structure, the cations are stacked in an anti­parallel manner along the a axis and the anions are linked together by C—H⋯O inter­actions into a layer parallel to (001). The anion layers are further linked to adjacent cations by C—H⋯O inter­actions. C—H⋯π inter­actions involving the benzene rings of both ions are also observed.