1-Methyl-4-[(E)-2-(2-thien­yl)ethen­yl]pyridinium 4-chloro­benzene­sulfonate1

Abstract

In the title compound, C12H12NS+·C6H4ClO3S−, the cation is almost planar and exists in the E configuration. The cations and anions form alternate layers parallel to the ab plane. Within each layer, both cations and anions form chains directed along the b axis. The mol­ecules are inter­connected by weak C—H⋯O inter­actions into a three-dimensional network. The crystal structure is further stabilized by C—H⋯π inter­actions involving the thio­phene ring. The sulfonate and thio­phene groups are involved in weak intra­molecular C—H⋯O and C—H⋯S inter­actions, respectively. The latter intra­molecular hydrogen bonds produce S(5) ring motifs