Abstract
In the title compound, C18H16N+·C6H4ClO3S−, the cation exists in an E configuration with respect to the central C=C bond. The naphthalene ring system is slightly bent, the dihedral angle between the two aromatic rings being 3.71 (14)°. The whole cation is twisted, the dihedral angles between the pyridinium and the two aromatic rings of the naphthalene ring system being 47.44 (14) and 50.81 (14)°. The pyridinium ring and the benzene ring of the anion are inclined to each other at a dihedral angle of 68.21 (13)°. In the crystal structure, the cations and anions are arranged alternately with the cations stacked in an anti-parallel manner along the c axis and the anions linked into chains along the same direction. The cations are linked to the anions by weak C—H⋯O interactions, forming a three-dimensional network. The crystal structure is further stabilized by C—H⋯π interactions and π–π contacts with centroid–centroid distances of 3.6374 (16) and 3.6733 (17) Å. A short Cl⋯O contact [3.108 (2) Å] is also present.
Highlights
In the title compound, C18H16N+C6H4ClO3S, the cation exists in an E configuration with respect to the central C C bond
The whole cation is twisted, the dihedral angles between the pyridinium and the two aromatic rings of the naphthalene ring system being 47.44 (14) and 50.81 (14)
The cations and anions are arranged alternately with the cations stacked in an anti-parallel manner along the c axis and the anions linked into chains along the same direction
Summary
Experimental a Crystal Materials Research Unit, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand, and bX-ray. The naphthalene ring system is slightly bent, the dihedral angle between the two aromatic rings being. The whole cation is twisted, the dihedral angles between the pyridinium and the two aromatic rings of the naphthalene ring system being 47.44 (14) and 50.81 (14). The pyridinium ring and the benzene ring of the anion are inclined to each other at a dihedral angle of 68.21 (13). The cations are linked to the anions by weak C—H O interactions, forming a three-dimensional network. The crystal structure is further stabilized by C—H interactions and – contacts with centroid–centroid distances of 3.6374 (16) and. A short Cl O contact [3.108 (2) Å] is present
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